{"id":17259,"date":"2026-09-18T16:24:56","date_gmt":"2026-09-18T08:24:56","guid":{"rendered":"https:\/\/hkcablemachine.com\/?p=17259"},"modified":"2026-09-18T16:24:56","modified_gmt":"2026-09-18T08:24:56","slug":"cable-extrusion-crosshead-guide","status":"publish","type":"post","link":"https:\/\/hkcablemachine.com\/vi\/cable-extrusion-crosshead-guide\/","title":{"rendered":"\u0110\u1ea7u ch\u00e9o \u0111\u00f9n c\u00e1p: D\u1ee5ng c\u1ee5, c\u0103n ch\u1ec9nh v\u00e0 ki\u1ec3m tra"},"content":{"rendered":"<p>A cable production manager may need new tooling after changing a cable size, adding a layer or finding uneven insulation. Before ordering a new crosshead, separate the cable requirement from the condition of the installed tooling and the way the line is running.<\/p>\n<p><strong>A new cable size does not always require a new crosshead. Check the incoming core structure, the required outside shape and size, and the head&#8217;s confirmed range. Then check line alignment, wall thickness and heating: changing tools or adjusting the head cannot correct every cause of an uneven wall.<\/strong><\/p>\n<p>This guide concerns the information and evidence needed for insulation and jacket extrusion. It is not a universal die-sizing recipe, a centering procedure for a particular machine or a substitute for its operating manual.<\/p>\n<h2>B\u1eaft \u0111\u1ea7u v\u1edbi l\u1edbp \u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng<\/h2>\n<p>Begin with a drawing of the product entering the crosshead and the product leaving it. A solid conductor, a stranded conductor and an assembled cable core should not be treated as interchangeable inputs simply because their nominal diameters are similar.<\/p>\n<p>Record the incoming construction, its size range and the layer being applied. For a finished cable, identify whether the purchase concerns conductor insulation, an inner sheath or the outer jacket. Where several materials or layers are involved, identify them separately rather than requesting a generic \u201cmultilayer head.\u201d<\/p>\n<p>Chu\u1ea9n b\u1ecb m\u1ed9t phi\u1ebfu s\u1ea3n ph\u1ea9m ng\u1eafn bao g\u1ed3m:<\/p>\n<ul>\n<li>B\u1ea3n v\u1ebd d\u00e2y d\u1eabn ho\u1eb7c l\u00f5i \u0111\u1ea7u v\u00e0o v\u00e0 c\u00e1c m\u1eabu \u0111\u1ea1i di\u1ec7n.<\/li>\n<li>Nh\u00e0 s\u1ea3n xu\u1ea5t h\u1ee3p ch\u1ea5t, m\u00e1c ch\u00ednh x\u00e1c v\u00e0 h\u01b0\u1edbng d\u1eabn gia c\u00f4ng.<\/li>\n<li>K\u00edch th\u01b0\u1edbc ngo\u00e0i th\u00e0nh ph\u1ea9m, \u0111\u1ed9 d\u00e0y th\u00e0nh y\u00eau c\u1ea7u v\u00e0 c\u00e1c gi\u1edbi h\u1ea1n ch\u1ea5p nh\u1eadn \u00e1p d\u1ee5ng.<\/li>\n<li>S\u1ed1 l\u01b0\u1ee3ng v\u00e0 th\u1ee9 t\u1ef1 c\u00e1c l\u1edbp, bao g\u1ed3m b\u1ea5t k\u1ef3 l\u1edbp s\u1ecdc ho\u1eb7c ngu\u1ed3n c\u1ea5p li\u1ec7u v\u1eadt li\u1ec7u ri\u00eang bi\u1ec7t n\u00e0o kh\u00e1c.<\/li>\n<li>C\u00e1c y\u00eau c\u1ea7u li\u00ean quan \u0111\u1ebfn b\u00f3c t\u00e1ch, \u0111\u1ed9 b\u00e1m d\u00ednh ho\u1eb7c t\u00e1ch l\u1edbp, n\u1ebfu \u0111\u1eb7c t\u1ea3 c\u00e1p c\u00f3 bao g\u1ed3m ch\u00fang.<\/li>\n<li>\u0110\u1ea7u \u0111\u00f9n hi\u1ec7n t\u1ea1i, m\u00e3 \u0111\u1ea7u ch\u00e9o, b\u1ed1 tr\u00ed d\u00e2y chuy\u1ec1n v\u00e0 d\u1ea3i v\u1eadn h\u00e0nh \u0111\u1ec1 xu\u1ea5t.<\/li>\n<\/ul>\n<h3>Ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f9n v\u00e0 c\u00e1ch s\u1eafp x\u1ebfp l\u1edbp ri\u00eang bi\u1ec7t<\/h3>\n<p>Pressure tooling and tubing tooling describe different extrusion approaches. Single-layer and coextrusion describe the layer arrangement. These are separate decisions, not four competing names for the same choice. Tooling manufacturers offer different pressure\/tubing, layer and centering configurations.<sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup><\/p>\n<p>Start with the product and required wall thickness when choosing the extrusion approach. In the HONGKAI applications discussed for this guide, the optical-fiber tube operation uses tubing tooling, while the sheath operation uses pressure tooling. These are application examples, not a rule that every optical cable tube or jacket uses the same method.<\/p>\n<p>Next, specify whether the product needs one layer, two layers in separate operations, or two layers extruded together. If both layers must be applied in one pass, the proposed head and material feeds must support that coextrusion arrangement. Identify a color stripe separately; a stripe is not automatically another complete sheath layer.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/hkcablemachine.com\/wp-content\/uploads\/2026\/09\/hongkai-dual-layer-stripe-crosshead-reference-v1.webp\" alt=\"HONGKAI 3D l\u00e0 tham chi\u1ebfu b\u00ean ngo\u00e0i cho \u0111\u1ea7u ch\u00e9o \u0111\u1ed3ng \u0111\u00f9n hai l\u1edbp c\u00f3 b\u1ed1 tr\u00ed s\u1ecdc m\u00e0u\" title=\"\u0110\u1ea7u \u00e9p hai l\u1edbp\" \/><\/p>\n<p><em>HONGKAI 3D exterior reference for a dual-layer coextrusion crosshead with a color-stripe arrangement. This is not a dimensioned drawing or a universal design for other crossheads.<\/em><\/p>\n<p>For an expansion project, separate the first approved product from future products. Ask the supplier to identify which changes remain within the proposed head and tooling range, and which require a different setup or an application trial. A possible future configuration should not be listed as proven production scope.<\/p>\n<h2>Thay \u0111\u1ed5i C\u00f4ng c\u1ee5\u2014hay To\u00e0n b\u1ed9 \u0110\u1ea7u ch\u00e9o?<\/h2>\n<p><strong>Check the tip when the incoming core construction changes, and the die when the required outside shape or dimension changes. If the product is outside the installed head&#8217;s confirmed size range, a tooling change alone is not enough: the head must also change. Staying within that range is only the first compatibility check.<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/hkcablemachine.com\/wp-content\/uploads\/2026\/09\/crosshead-tool-change-map-v1.webp\" alt=\"S\u01a1 \u0111\u1ed3 quy\u1ebft \u0111\u1ecbnh li\u00ean k\u1ebft c\u1ea5u tr\u00fac l\u00f5i v\u1edbi \u0111\u1ea7u m\u00fat, h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc b\u00ean ngo\u00e0i v\u1edbi khu\u00f4n \u00e9p, v\u00e0 ph\u1ea1m vi \u0111\u1ea7u v\u01b0\u1ee3t qu\u00e1 v\u1edbi m\u1ed9t \u0111\u1ea7u ch\u00e9o kh\u00e1c\" title=\"C\u00f4ng c\u1ee5 hay \u0111\u1ea7u?\" \/><\/p>\n<p><em>Explanatory decision map based on the application distinctions discussed for this guide. It is not a tooling drawing; fit, material and layer arrangement still require confirmation.<\/em><\/p>\n<p>HONGKAI&#8217;s sizing discussions include U7, U10, U14 and U20 crossheads. In this family, the number indicates the supported maximum line-size range. Confirm the actual limit and which product dimension it refers to against the particular head&#8217;s drawing or specification. These names are not a universal sizing system across manufacturers.<\/p>\n<p>For tooling, separate the incoming construction from the finished shape. A single-core and a two-core product can require different tips. The die must suit the target outer shape and size as well as the agreed material and extrusion method. Do not assume that each product change requires both tools to be replaced, or that a larger die can extend the head beyond its approved range.<\/p>\n<table>\n<thead>\n<tr>\n<th>What changes?<\/th>\n<th>N\u00ean xem l\u1ea1i \u0111i\u1ec1u g\u00ec tr\u01b0\u1edbc ti\u00ean<\/th>\n<th>\u0110i\u1ec1u g\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u1ea5u tr\u00fac l\u00f5i \u0111\u1ea7u v\u00e0o, v\u00ed d\u1ee5 nh\u01b0 t\u1eeb l\u00f5i \u0111\u01a1n sang l\u00f5i \u0111\u00f4i<\/td>\n<td>H\u00ecnh h\u1ecdc \u0111\u1ea7u m\u00fat ho\u1eb7c h\u01b0\u1edbng d\u1eabn<\/td>\n<td>\u0110o\u1ea1n d\u1eabn, c\u1ee5m \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi khu\u00f4n<\/td>\n<\/tr>\n<tr>\n<td>H\u00ecnh d\u1ea1ng b\u00ean ngo\u00e0i ho\u1eb7c k\u00edch th\u01b0\u1edbc ho\u00e0n thi\u1ec7n y\u00eau c\u1ea7u<\/td>\n<td>H\u00ecnh h\u1ecdc khu\u00f4n v\u00e0 ph\u1ea1m vi s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c<\/td>\n<td>H\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc m\u1ee5c ti\u00eau v\u1edbi v\u1eadt li\u1ec7u \u0111\u00e3 ch\u1ecdn v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f9n<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc s\u1ea3n ph\u1ea9m y\u00eau c\u1ea7u v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn c\u1ee7a \u0111\u1ea7u m\u00e1y<\/td>\n<td>M\u1ed9t \u0111\u1ea7u c\u00f3 ph\u1ea1m vi ph\u00f9 h\u1ee3p<\/td>\n<td>G\u00f3i ho\u00e0n ch\u1ec9nh bao g\u1ed3m \u0111\u1ea7u m\u1edbi, d\u1ee5ng c\u1ee5 v\u00e0 giao di\u1ec7n d\u00e2y chuy\u1ec1n<\/td>\n<\/tr>\n<tr>\n<td>S\u1eafp x\u1ebfp l\u1edbp, thay \u0111\u1ed5i s\u1ecdc ho\u1eb7c v\u1eadt li\u1ec7u<\/td>\n<td>C\u1ee5m \u0111\u00f9n \u00e9p, kh\u00f4ng ch\u1ec9 l\u00e0 ph\u1ea7n m\u1edf c\u1ee7a d\u1ee5ng c\u1ee5<\/td>\n<td>C\u00e1c \u0111\u1ea7u c\u1ea5p li\u1ec7u y\u00eau c\u1ea7u, \u0111\u1ea7u dao\/d\u1ee5ng c\u1ee5 t\u01b0\u01a1ng th\u00edch v\u00e0 b\u1ea5t k\u1ef3 th\u1eed nghi\u1ec7m \u1ee9ng d\u1ee5ng n\u00e0o<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For an existing machine, provide its head identification, photographs and tooling drawing. Confirm the mounting dimensions, locating surfaces, holders and adjustment arrangement. Different manufacturers&#8217; tools are not interchangeable merely because the finished cable diameter is the same.<\/p>\n<p>HONGKAI&#8217;s published <a href=\"https:\/\/hkcablemachine.com\/cable-extrusion-line-spare-parts\/\">trang ph\u1ee5 t\u00f9ng \u0111\u00f9n \u00e9p<\/a> lists die, tip and adjusting-ring components and asks for photos or drawings before confirming a replacement. That is a starting point for part identification, not evidence that an unknown tool will fit every crosshead.<\/p>\n<p>A worn part can help identify the assembly, but its measured dimensions should not automatically become the dimensions of a new part. Ask the supplier to distinguish the original design from wear, damage or earlier modifications. Record drawing revisions and part numbers so a later order refers to the same approved package.<\/p>\n<p>Have the supplier record the agreed scope: replacement tools, a modified tooling package or a different head. That written boundary is more useful than an unsupported claim that one head can make every future product.<\/p>\n<h2>Ki\u1ec3m tra \u0111\u01b0\u1eddng \u0111i c\u1ee7a d\u00e2y tr\u01b0\u1edbc khi \u0111\u1ed5 l\u1ed7i cho \u0111\u1ea7u<\/h2>\n<p>An uneven wall is a reason to investigate, not an automatic instruction to replace the crosshead. Preserve the sample and operating record before changing the setup. Record whether the issue appeared after a tool change, a material change, a restart or a change in line operation.<\/p>\n<h3>Thi\u1ebft l\u1eadp c\u01a1 c\u1ea5u \u0111\u1ecbnh t\u00e2m tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t<\/h3>\n<p>Identify whether the particular head uses manual adjustment, assisted adjustment or a fixed\/self-centering arrangement. Follow the setup method for that design before formal production. A head described as requiring no routine centering adjustment still needs correct installation, matched tooling and a check of the finished wall.<\/p>\n<h3>Ki\u1ec3m tra vi\u1ec7c l\u1eafp \u0111\u1eb7t, l\u1ef1c k\u00e9o c\u0169ng nh\u01b0 \u0111\u1ea7u m\u00e1y<\/h3>\n<p>HONGKAI&#8217;s commissioning checks for the applications discussed here include equipment leveling, alignment between the crosshead&#8217;s cable path and the haul-off centerline, and abnormal haul-off vibration or jerking. Establish these conditions during installation rather than trying to compensate for them with the head&#8217;s centering adjustment later.<\/p>\n<p>An uneven floor matters if the equipment has not been correctly supported and leveled. The floor does not have to serve as the alignment reference by itself. Ask the installer to verify the machine positions and cable path against the approved layout. A misaligned haul-off or unstable pull is a separate issue to correct; adjusting the head alone does not resolve it.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/hkcablemachine.com\/wp-content\/uploads\/2026\/09\/crosshead-line-alignment-v1.webp\" alt=\"S\u01a1 \u0111\u1ed3 \u0111\u01b0\u1eddng c\u00e1p \u0111\u01a1n gi\u1ea3n h\u00f3a th\u1ec3 hi\u1ec7n \u0111\u01b0\u1eddng t\u00e2m chung \u0111i qua \u0111\u1ea7u ch\u1eef th\u1eadp, \u0111o\u1ea1n l\u00e0m m\u00e1t v\u00e0 b\u1ed9 k\u00e9o c\u00e1p, k\u00e8m theo c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra c\u00e2n b\u1eb1ng v\u00e0 l\u1ef1c k\u00e9o\" title=\"C\u0103n ch\u1ec9nh \u0111\u01b0\u1eddng c\u00e1p\" \/><\/p>\n<p><em>Kh\u00e1i ni\u1ec7m c\u0103n ch\u1ec9nh \u0111\u01a1n gi\u1ea3n, kh\u00f4ng ph\u1ea3i b\u1ea3n v\u1ebd l\u1eafp \u0111\u1eb7t hay d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ho\u00e0n ch\u1ec9nh. V\u1ecb tr\u00ed thi\u1ebft b\u1ecb, c\u00e1c \u0111i\u1ec3m \u0111\u1ee1 v\u00e0 dung sai ph\u1ea3i tu\u00e2n theo b\u1ed1 tr\u00ed th\u1ef1c t\u1ebf.<\/em><\/p>\n<p>Gi\u1eef ri\u00eang bi\u1ec7t c\u00e1c c\u00e2u h\u1ecfi \u0111i\u1ec1u tra n\u00e0y:<\/p>\n<ul>\n<li><strong>Part identity:<\/strong> C\u00e1c \u0111\u1ea7u n\u1ed1i, khu\u00f4n v\u00e0 b\u1ed9 gi\u1eef \u0111\u00e3 l\u1eafp \u0111\u1eb7t c\u00f3 ph\u1ea3i l\u00e0 t\u1ed5 h\u1ee3p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t kh\u00f4ng?<\/li>\n<li><strong>Assembly condition:<\/strong> Ki\u1ec3m tra c\u00f3 cho th\u1ea5y h\u01b0 h\u1ecfng, nhi\u1ec5m b\u1ea9n ho\u1eb7c t\u00ecnh tr\u1ea1ng n\u00e0o kh\u00e1c c\u1ea7n \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c kh\u00f4ng?<\/li>\n<li><strong>Line behavior:<\/strong> L\u00f5i c\u00f3 ch\u1ea1y \u0111\u1ec1u \u0111\u1eb7n d\u1ecdc theo \u0111\u01b0\u1eddng d\u1eabn d\u1ef1 ki\u1ebfn hay kh\u00f4ng, hay v\u1ecb tr\u00ed ho\u1eb7c l\u1ef1c c\u0103ng c\u1ee7a n\u00f3 thay \u0111\u1ed5i?<\/li>\n<li><strong>Heating behavior:<\/strong> Nhi\u1ec7t \u0111\u1ed9 \u0111o \u0111\u01b0\u1ee3c c\u1ee7a \u0111\u1ea7u v\u00e0 h\u00e0nh vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 kh\u1edbp v\u1edbi c\u00f4ng th\u1ee9c \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, thay v\u00ec ch\u1ec9 hi\u1ec3n th\u1ecb c\u00e1c \u0111i\u1ec3m \u0111\u1eb7t mong mu\u1ed1n kh\u00f4ng?<\/li>\n<li><strong>Extrusion behavior:<\/strong> Vi\u1ec7c chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u v\u00e0 \u0111\u1ea7u ra c\u00f3 \u1ed5n \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t kh\u00f4ng?<\/li>\n<li><strong>Measurement:<\/strong> L\u1ed7i \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o c\u00f3 ph\u1ea3i l\u00e0 s\u1ef1 thay \u0111\u1ed5i \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i, \u0111\u1ed9 d\u00e0y th\u00e0nh kh\u00f4ng \u0111\u1ec1u, \u0111\u1ed9 \u00f4 van ho\u1eb7c k\u1ebft h\u1ee3p c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y kh\u00f4ng?<\/li>\n<\/ul>\n<p>Nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y s\u1eafp x\u1ebfp b\u1eb1ng ch\u1ee9ng; kh\u00f4ng c\u00e2u n\u00e0o t\u1ef1 n\u00f3 x\u00e1c l\u1eadp \u0111\u01b0\u1ee3c nguy\u00ean nh\u00e2n. The <a href=\"https:\/\/hkcablemachine.com\/cable-extrusion-defects-troubleshooting\/\">h\u01b0\u1edbng d\u1eabn \u0111i\u1ec1u tra khuy\u1ebft t\u1eadt v\u1eadt li\u1ec7u v\u00e0 quy tr\u00ecnh<\/a> bao g\u1ed3m c\u00e1c ki\u1ec3m tra t\u1ed5ng qu\u00e1t h\u01a1n khi xu\u1ea5t hi\u1ec7n b\u1ecdt kh\u00ed, \u0111\u1ed9 nh\u00e1m ho\u1eb7c hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f9n kh\u00f4ng \u1ed5n \u0111\u1ecbnh c\u0169ng nh\u01b0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u00edch th\u01b0\u1edbc.<\/p>\n<p>If several settings are changed together, record all of them. A better sample after multiple changes cannot show which change solved the problem. Where a controlled comparison is practical, agree on the change and its evaluation before running the trial.<\/p>\n<p>Note: Intrusive inspection, cleaning and tool changes require qualified personnel following the machine&#8217;s isolation, pressure-release and temperature-control instructions. This article does not authorize adjusting, opening or reaching into running or pressurized equipment.<\/p>\n<h2>\u0110o \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng, kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i<\/h2>\n<p><strong>A stable outside diameter does not prove that the conductor or core is centered. Accept the layer using the wall-thickness and dimensional evidence required by the cable specification, not only the diameter display.<\/strong><\/p>\n<p>SIKORA explains that comparing diameters before and after extrusion can provide a thickness value, but that laser-diameter comparison alone does not measure eccentricity. A system intended to measure eccentricity needs the relevant additional measurement capability.<sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/hkcablemachine.com\/wp-content\/uploads\/2026\/09\/crosshead-wall-eccentricity-v1.webp\" alt=\"Hai m\u1eb7t c\u1eaft ngang minh h\u1ecda c\u1ee7a c\u00e1p c\u00f3 c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i nh\u01b0ng l\u00f5i \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed \u1edf v\u1ecb tr\u00ed t\u00e2m v\u00e0 l\u1ec7ch t\u00e2m, th\u1ec3 hi\u1ec7n s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ed9 d\u00e0y th\u00e0nh kh\u00e1c nhau\" title=\"OD versus centering\" \/><\/p>\n<p><em>C\u00e1c m\u1eb7t c\u1eaft ngang minh h\u1ecda c\u00f3 c\u00f9ng \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i. L\u00f5i l\u1ec7ch t\u00e2m l\u00e0m thay \u0111\u1ed5i s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng; \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c m\u1eabu \u0111o l\u01b0\u1eddng hay gi\u1edbi h\u1ea1n nghi\u1ec7m thu.<\/em><\/p>\n<p>Gi\u1eef c\u00e1c \u0111i\u1ec1u kho\u1ea3n ki\u1ec3m tra r\u00f5 r\u00e0ng trong h\u1ed3 s\u01a1 mua h\u00e0ng v\u00e0 th\u1eed nghi\u1ec7m:<\/p>\n<table>\n<thead>\n<tr>\n<th>B\u1eb1ng ch\u1ee9ng<\/th>\n<th>\u0110i\u1ec1u m\u00e0 n\u00f3 gi\u00fap thi\u1ebft l\u1eadp<\/th>\n<th>\u0110i\u1ec1u m\u00e0 n\u00f3 kh\u00f4ng t\u1ef1 thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u1ea3n ghi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i<\/td>\n<td>S\u1ef1 bi\u1ebfn \u0111\u1ed5i trong k\u00edch th\u01b0\u1edbc ngo\u00e0i \u0111o \u0111\u01b0\u1ee3c<\/td>\n<td>V\u1ecb tr\u00ed c\u1ee7a ru\u1ed9t d\u1eabn ho\u1eb7c l\u00f5i b\u00ean trong l\u1edbp<\/td>\n<\/tr>\n<tr>\n<td>M\u1eb7t c\u1eaft ngang \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb<\/td>\n<td>Ph\u00e2n b\u1ed1 th\u00e0nh t\u01b0\u1eddng c\u1ee5c b\u1ed9 trong m\u1eabu c\u1ee5 th\u1ec3 \u0111\u00f3<\/td>\n<td>Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i s\u1ea3n xu\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111o \u0111\u1ed9 d\u00e0y th\u00e0nh \u1ed1ng ho\u1eb7c \u0111\u1ed9 l\u1ec7ch t\u00e2m tr\u1ef1c tuy\u1ebfn<\/td>\n<td>H\u00e0nh vi c\u1ee7a th\u00f4ng s\u1ed1 \u0111o \u0111\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh ch\u1ea1y \u0111\u00e3 ghi l\u1ea1i<\/td>\n<td>\u0110\u1ed9 ph\u00f9 h\u1ee3p cho v\u1eadt li\u1ec7u, k\u00edch c\u1ee1 ho\u1eb7c k\u1ebft c\u1ea5u ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c minh<\/td>\n<\/tr>\n<tr>\n<td>Surface inspection<\/td>\n<td>Ngo\u1ea1i quan nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c t\u1ea1i v\u1ecb tr\u00ed ki\u1ec3m tra<\/td>\n<td>T\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc ho\u1eb7c \u0111i\u1ec7n \u1ea9n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Before the trial, agree on how samples will be prepared and measured. Identify the instrument, the recorded quantities and the acceptance limits. Where a percentage such as \u201cconcentricity\u201d appears in a proposal, require its definition and calculation method; do not assume that different reports use identical terminology.<\/p>\n<p>Link each result to the same material batch, tooling setup and sample position or production time. If an online gauge and an offline sample disagree, first confirm that they refer to the same product and measurement conditions. Do not choose whichever result happens to be more favorable.<\/p>\n<p>The measuring system also needs an application check. Ask which materials, layer arrangements, product dimensions and operating conditions it can evaluate in the proposed setup. This guide does not require a particular instrument brand or claim that one sensing method covers every cable.<\/p>\n<h2>Ch\u1ea5p nh\u1eadn m\u1ed9t thi\u1ebft l\u1eadp c\u00f3 th\u1ec3 t\u00e1i t\u1ea1o, ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t m\u1eabu t\u1ed1t duy nh\u1ea5t<\/h2>\n<p>Agree on the trial before accepting the proposed crosshead or tooling change. Define the sample product, material grade, setup identity, operating conditions, measurement method and decision limits. The buyer and supplier should know what evidence will settle acceptance before the machine is demonstrated.<\/p>\n<p>For the head itself, HONGKAI&#8217;s priorities in the applications discussed here are the actual product&#8217;s centering and normal heating behavior. Demonstrate both on the agreed product: inspect the wall distribution and retain the corresponding temperature records. These head-focused checks do not replace the other tests required for the finished cable.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/hkcablemachine.com\/wp-content\/uploads\/2026\/09\/crosshead-acceptance-evidence-v1.webp\" alt=\"S\u01a1 \u0111\u1ed3 minh ch\u1ee9ng nghi\u1ec7m thu th\u1ec3 hi\u1ec7n m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa vi\u1ec7c \u0111\u1ecbnh t\u00e2m s\u1ea3n ph\u1ea9m v\u00e0 h\u00e0nh vi gia nhi\u1ec7t v\u1edbi c\u00f9ng m\u1ed9t b\u1ed9 c\u00f4ng c\u1ee5, v\u1eadt li\u1ec7u v\u00e0 h\u1ed3 s\u01a1 th\u1eddi gian ho\u1eb7c chi\u1ec1u d\u00e0i\" title=\"B\u1eb1ng ch\u1ee9ng th\u1eed nghi\u1ec7m\" \/><\/p>\n<p><em>B\u1ea3n \u0111\u1ed3 ghi ch\u00fa gi\u1ea3i th\u00edch, kh\u00f4ng ph\u1ea3i b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m. Li\u00ean k\u1ebft c\u00e1c m\u1eabu c\u0103n t\u00e2m v\u00e0 h\u1ed3 s\u01a1 nhi\u1ec7t \u0111\u1ed9 v\u1edbi c\u00f9ng m\u1ed9t thi\u1ebft l\u1eadp; th\u1ed1ng nh\u1ea5t ri\u00eang v\u1ec1 gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf v\u00e0 c\u00e1c ph\u00e9p th\u1eed s\u1ea3n ph\u1ea9m kh\u00e1c.<\/em><\/p>\n<p>M\u1ed9t b\u1ea3n ghi th\u1eed nghi\u1ec7m h\u1eefu \u00edch li\u00ean k\u1ebft c\u00e1c m\u1ee5c sau \u0111\u00e2y thay v\u00ec l\u01b0u tr\u1eef ch\u00fang d\u01b0\u1edbi d\u1ea1ng c\u00e1c b\u1ee9c \u1ea3nh kh\u00f4ng li\u00ean quan:<\/p>\n<ul>\n<li>B\u1ea3n v\u1ebd c\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t v\u00e0 l\u00f4 h\u1ee3p ch\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/li>\n<li>M\u00e3 nh\u1eadn d\u1ea1ng \u0111\u1ea7u, s\u1ed1 hi\u1ec7u chi ti\u1ebft d\u1ee5ng c\u1ee5 v\u00e0 phi\u00ean b\u1ea3n b\u1ea3n v\u1ebd.<\/li>\n<li>C\u01a1 c\u1ea5u \u0111\u1ecbnh t\u00e2m, \u0111\u1ed9 th\u1eb3ng h\u00e0ng c\u1ee7a \u0111\u01b0\u1eddng d\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t.<\/li>\n<li>C\u00e1c c\u00e0i \u0111\u1eb7t nhi\u1ec7t \u0111\u1ed9 \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh v\u00e0 c\u00e1c b\u1ea3n ghi nhi\u1ec7t \u0111\u1ed9 \u0111o \u0111\u01b0\u1ee3c t\u01b0\u01a1ng \u1ee9ng.<\/li>\n<li>C\u00e1c m\u1eabu l\u01b0u gi\u1eef k\u00e8m theo m\u1ed1c th\u1eddi gian ho\u1eb7c tham chi\u1ebfu chi\u1ec1u d\u00e0i c\u1ee7a ch\u00fang.<\/li>\n<li>C\u00e1c k\u1ebft qu\u1ea3 k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u1ee9ng v\u00e0 c\u00e1c ki\u1ec3m tra s\u1ea3n ph\u1ea9m \u00e1p d\u1ee5ng kh\u00e1c.<\/li>\n<li>B\u1ea5t k\u1ef3 s\u1ef1 gi\u00e1n \u0111o\u1ea1n ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh n\u00e0o, l\u00fd do c\u1ee7a n\u00f3 v\u00e0 k\u1ebft qu\u1ea3 sau \u0111\u00f3.<\/li>\n<\/ul>\n<p>Where frequent product changes are important, include an agreed changeover in the demonstration. The question is not merely whether an experienced operator can produce one acceptable short sample. It is whether the factory can identify the approved tools, follow the documented setup and verify the result again under the agreed conditions.<\/p>\n<p>Do not invent a universal test speed, duration or sample count. Those values must match the product, contract and factory&#8217;s acceptance method. Startup material and output made during an unapproved adjustment should remain identifiable under the factory&#8217;s quality procedure.<\/p>\n<p>At handover, retain the accepted tool drawings or identifiers, setup instructions, maintenance guidance and sample records. List future materials and product sizes separately if they have not been demonstrated. A clear scope prevents the accepted setup for one cable from becoming an unsupported promise about every cable the factory may make later.<\/p>\n<p>The strongest result is a matched tooling package with traceable samples and a repeatable setup. That gives production staff a basis for the next changeover and gives the buyer evidence for accepting the equipment.<\/p>\n<div class=\"footnotes\">\n<hr \/>\n<ol>\n<li id=\"fn:1\">\n<p>Guill Tool &amp; Engineering, <a href=\"https:\/\/guill.com\/series\/\" rel=\"nofollow noopener\" target=\"_blank\">C\u00e1c t\u00f9y ch\u1ecdn d\u00f2ng s\u1ea3n ph\u1ea9m v\u00e0 c\u1ea5u h\u00ecnh<\/a>. Used only to substantiate the existence of distinct pressure\/tubing and fixed\/adjustable configurations, not as a HONGKAI product specification, supplier endorsement or universal selection rule.&#160;<a href=\"#fnref1:1\" rev=\"footnote\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p>SIKORA, <a href=\"https:\/\/sikora.net\/en\/thickness-measurement\/\" rel=\"nofollow noopener\" target=\"_blank\">Thickness measurement<\/a>, \u0111\u1eb7c bi\u1ec7t l\u00e0 ph\u1ea7n th\u1ea3o lu\u1eadn v\u1ec1 \u0111o l\u01b0\u1eddng b\u1eb1ng laser. H\u1ed7 tr\u1ee3 s\u1ef1 ph\u00e2n bi\u1ec7t gi\u1eefa \u0111\u1ed9 d\u00e0y suy ra t\u1eeb \u0111\u01b0\u1eddng k\u00ednh v\u00e0 ph\u00e9p \u0111o \u0111\u1ed9 l\u1ec7ch t\u00e2m; kh\u00f4ng \u00e1p d\u1ee5ng b\u1ea5t k\u1ef3 tuy\u00ean b\u1ed1 n\u00e0o v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c ho\u1eb7c hi\u1ec7u su\u1ea5t mang t\u00ednh \u0111\u1eb7c th\u00f9 c\u1ee7a nh\u00e0 cung c\u1ea5p.<a href=\"#fnref1:2\" rev=\"footnote\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<\/ol>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn th\u1ef1c t\u1ebf d\u00e0nh cho qu\u1ea3n l\u00fd s\u1ea3n xu\u1ea5t c\u00e1p v\u1ec1 vi\u1ec7c ph\u1ed1i h\u1ee3p \u0111\u1ea7u t\u1ea1o h\u00ecnh v\u00e0 khu\u00f4n \u00e9p, \u0111i\u1ec1u tra nguy\u00ean nh\u00e2n th\u00e0nh \u1ed1ng kh\u00f4ng \u0111\u1ec1u v\u00e0 th\u1ed1ng nh\u1ea5t b\u1eb1ng ch\u1ee9ng tr\u01b0\u1edbc khi ch\u1ea5p nh\u1eadn l\u1eafp \u0111\u1eb7t c\u1ee5m \u0111\u1ea7u ch\u00e9o m\u1edbi.<\/p>","protected":false},"author":1,"featured_media":17270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_angie_page":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"page_builder":"","thumbnail_url":"","footnotes":""},"categories":[879],"tags":[],"buyer-route":[],"process":[],"class_list":["post-17259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/posts\/17259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/comments?post=17259"}],"version-history":[{"count":2,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/posts\/17259\/revisions"}],"predecessor-version":[{"id":17274,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/posts\/17259\/revisions\/17274"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/media\/17270"}],"wp:attachment":[{"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/media?parent=17259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/categories?post=17259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/tags?post=17259"},{"taxonomy":"buyer-route","embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/buyer-route?post=17259"},{"taxonomy":"process","embeddable":true,"href":"https:\/\/hkcablemachine.com\/vi\/wp-json\/wp\/v2\/process?post=17259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}