{"id":31141,"date":"2026-10-08T08:06:26","date_gmt":"2026-10-08T08:06:26","guid":{"rendered":"https:\/\/doingcable.com\/?p=31141"},"modified":"2026-10-08T08:56:25","modified_gmt":"2026-10-08T08:56:25","slug":"what-is-aluminum-material-continuous-extrusion-machine","status":"publish","type":"post","link":"https:\/\/doingcable.com\/fr\/what-is-aluminum-material-continuous-extrusion-machine\/","title":{"rendered":"What is Aluminum Material Continuous Extrusion Machine?"},"content":{"rendered":"

An Machine d'extrusion continue de mat\u00e9riaux en aluminium<\/a><\/strong> is a Conform (Continuous Rotary Extrusion) system that converts aluminum rod into endless busbar, flat wire, tube, profile or cable sheath without a billet furnace or intermediate annealing.<\/p>\n\n\n\n

In cable plants it is used for two main duties: (1) solid conductors and busbars (EC-grade aluminum) and (2) seamless aluminum sheathing \/ cladding of power cable cores (corrugated or smooth). The process is solid-state, friction-heated, and yields typically \u226595 %.<\/p>\n\n\n\n

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inquiry now<\/a><\/div>\n<\/div>\n\n\n\n
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What Is an Aluminum Material Continuous Extrusion Machine?<\/h1>\n\n\n\n

An Aluminum Material Continuous Extrusion Machine is a Conform continuous rotary extrusion line that feeds aluminum rod into a grooved rotating wheel, plasticizes the metal by friction against a stationary shoe, and forces it through a die to produce continuous busbar, flat wire, tube or cable sheath.<\/p>\n\n\n\n

Unlike a conventional hydraulic press, there is no billet furnace, no butt scrap and no length limitation. The product exits soft and can be coiled, cut or corrugated in-line. In cable manufacturing the two dominant applications are EC-grade solid conductors \/ busbars and seamless aluminum sheaths for MV\/HV\/EHV power cables.<\/p>\n\n\n\n

How does Conform aluminum extrusion work compared with a hydraulic press?<\/h2>\n\n\n\n

Conform is continuous and friction-heated. A hydraulic press is batch, furnace-heated and limited by billet length.<\/p>\n\n\n\n

Aluminum rod (normally \u00d89.5 mm or \u00d812\u201315 mm EC or alloy rod) is coined into the wheel groove. Friction between the rotating wheel, the rod and the stationary shoe raises the metal temperature to the plastic range (typically 300\u2013500 \u00b0C for aluminum, lower than copper). The abutment redirects the plastic metal into the die. Flash that escapes the groove is the leak (normally \u22643\u20135 %).<\/p>\n\n\n\n

For cable sheathing, multiple rods (2\u00d7 or 4\u00d7) feed multi-groove wheels. The metal flows into a welding chamber and forms a seamless tube around the cable core that is running through the die. The tube is then cooled and corrugated in-line. Traditional longitudinal welded sheaths have a seam; Conform sheaths do not.<\/p>\n\n\n\n

Route<\/th>Feed<\/th>Heat source<\/th>Length<\/th>Typical product<\/th>Yield<\/th>Cable use<\/th><\/tr><\/thead>
Hydraulic press<\/td>Billet<\/td>Furnace 400\u2013500 \u00b0C<\/td>Billet-limited<\/td>Tube, profile<\/td>Butt scrap<\/td>Older sheath, large profiles<\/td><\/tr>
Conform CRE<\/strong><\/td>Rod \u00d89.5\u201315 mm<\/strong><\/td>Friction<\/strong><\/td>Endless<\/strong><\/td>Busbar, tube, sheath<\/strong><\/td>\u226595 %<\/strong><\/td>Busbar + seamless sheath<\/strong><\/td><\/tr>
Welded strip<\/td>Aluminum strip<\/td>Welding<\/td>Continuous<\/td>Corrugated sheath<\/td>Seam present<\/td>Lower-voltage \/ cost-sensitive<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Which wheel size and configuration match busbar, conductor and cable sheath?<\/h2>\n\n\n\n

Wheel diameter and groove count are selected from product section or sheath diameter and required kg\/h.<\/p>\n\n\n\n

Application<\/th>Wheel class<\/th>Feed rod<\/th>Product range<\/th>Typical output<\/th><\/tr><\/thead>
Small flat wire \/ tube<\/td>300\u2013350 mm<\/td>\u00d89.5 mm<\/td>5\u2013600 mm\u00b2 or small tube<\/td>180\u2013360 kg\/h<\/td><\/tr>
Busbar \/ solid conductor<\/td>350\u2013400 mm<\/td>\u00d815 mm or 2\u00d79.5<\/td>75\u20132,000 mm\u00b2<\/td>450\u2013900 kg\/h<\/td><\/tr>
Cable sheath (small\u2013medium)<\/td>350\u2013400 mm (2-groove)<\/td>2\u00d79.5 \/ 2\u00d712<\/td>Sheath OD 6\u201350 mm, wall 0.6\u20133 mm<\/td>Line speed up to 60 m\/min<\/td><\/tr>
Cable sheath (HV\/EHV)<\/td>500 mm class (4-groove)<\/td>4\u00d715 mm<\/td>Sheath OD 60\u2013180 mm, wall 1.5\u20135 mm<\/td>700\u20131,200 kg\/h<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

BWE Conklad and Chinese Conform machines (SLB \/ SSLB \/ LBF series) cover the sheathing range. Four-channel designs improve symmetry and wall-thickness uniformity on large-diameter HV sheaths (roundness typically \u226599 %, thickness deviation \u00b15 %).<\/p>\n\n\n\n

What process parameters and standards apply to aluminum continuous extrusion?<\/h2>\n\n\n\n

Feedstock is normally EC-grade aluminum rod (AA1350 or equivalent, \u226599.7 % Al) meeting GB\/T 3954 or ASTM B233. For sheathing, the rod must be clean and free of oil or wax.<\/p>\n\n\n\n

Typical process values:<\/p>\n\n\n\n

    \n
  • Wheel speed: 6\u201320 r\/min (aluminum runs faster than copper on the same frame).<\/li>\n\n\n\n
  • Product temperature: controlled by cooling after the die; excessive heat damages cable insulation during sheathing.<\/li>\n\n\n\n
  • Leak \/ flash: \u22643\u20135 %.<\/li>\n\n\n\n
  • Dimensional tolerance: \u00b10.05 mm class on busbar; wall-thickness control critical on sheaths.<\/li>\n\n\n\n
  • Conductivity: depends on feedstock; EC-grade busbar targets high IACS.<\/li>\n<\/ul>\n\n\n\n

    Cable sheaths must satisfy the metallic-sheath clauses of IEC 60502 (MV), IEC 60840 (30\u2013150 kV) or IEC 62067 (EHV). Corrugation pitch and depth are set by mechanical and short-circuit requirements. Seamless Conform sheaths eliminate the longitudinal weld that exists in strip-welded designs.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    What fails when rod quality, wheel condition or die design is wrong?<\/h2>\n\n\n\n
    Failure mode<\/th>Typical cause<\/th>Prevention<\/th><\/tr><\/thead>
    High leak (>5 %)<\/td>Worn wheel\u2013shoe gap, oval rod<\/td>Re-machine wheel; control rod ovality<\/td><\/tr>
    Uneven sheath wall<\/td>Asymmetric die or multi-groove imbalance<\/td>Four-channel design; die optimization<\/td><\/tr>
    Insulation damage during sheathing<\/td>Excessive heat at die<\/td>Water-cooled die jacket; synchronized line speed<\/td><\/tr>
    Surface scoring<\/td>Dirty rod or worn abutment<\/td>Rod cleaning; regular tool inspection<\/td><\/tr>
    Low conductivity on busbar<\/td>Contaminated feedstock<\/td>Use certified EC rod; avoid dirty scrap<\/td><\/tr>
    Corrugation defects<\/td>Incorrect pitch\/depth setting<\/td>Match corrugation unit to sheath OD and wall<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    2024\u20132026 practice favors multi-groove \/ four-channel designs for large HV sheaths, integrated cooling and corrugation, and PLC control of wheel speed and line synchronization.<\/p>\n\n\n\n

    Key takeaways<\/h2>\n\n\n\n
      \n
    • An Aluminum Material Continuous Extrusion Machine is a Conform CRE line that converts \u00d89.5\u201315 mm rod into endless busbar, tube or seamless cable sheath.<\/li>\n\n\n\n
    • It eliminates billet furnaces, butt scrap and longitudinal welds; first-pass yield is typically \u226595 %.<\/li>\n\n\n\n
    • Wheel sizes 300\u2013550 mm cover small conductors to 180 mm OD HV sheaths; multi-groove designs improve large-sheath uniformity.<\/li>\n\n\n\n
    • Cable sheaths must meet IEC 60502 \/ 60840 \/ 62067 metallic-sheath requirements.<\/li>\n\n\n\n
    • Critical controls are rod cleanliness, wheel\u2013shoe condition, die cooling (for sheathing) and corrugation parameters.<\/li>\n<\/ul>\n\n\n\n

      Send product type (busbar \/ sheath), section or sheath OD, wall thickness and required kg\/h or line speed.<\/p>\n\n\n\n

      <\/p>","protected":false},"excerpt":{"rendered":"

      An Aluminum Material Continuous Extrusion Machine is a Conform (Continuous Rotary Extrusion) system that converts aluminum rod into endless busbar,<\/p>","protected":false},"author":1,"featured_media":31146,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[565],"tags":[],"class_list":["post-31141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-en"],"_links":{"self":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/posts\/31141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/comments?post=31141"}],"version-history":[{"count":1,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/posts\/31141\/revisions"}],"predecessor-version":[{"id":31147,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/posts\/31141\/revisions\/31147"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media\/31146"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/media?parent=31141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/categories?post=31141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doingcable.com\/fr\/wp-json\/wp\/v2\/tags?post=31141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}