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Injection compound and injection molding process for preparing high thermal conductivity oil-free self-lubricating hook

A self-lubricating rotary hook, high thermal conductivity technology, applied in the field of plastic injection, can solve the problems of uncontinuous production process, high production cost, low efficiency, etc., and achieves low possibility of lubricating oil pollution, high work efficiency, and cost reduction. Effect

Inactive Publication Date: 2015-12-09
上海时航科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of metal rotary hook usually requires complex multi-process machining and heat treatment of metal materials in the later stage to complete, and its production process cannot be continuous, so its production cost is high, energy consumption is high, and efficiency is low

Method used

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  • Injection compound and injection molding process for preparing high thermal conductivity oil-free self-lubricating hook
  • Injection compound and injection molding process for preparing high thermal conductivity oil-free self-lubricating hook
  • Injection compound and injection molding process for preparing high thermal conductivity oil-free self-lubricating hook

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The quality composition of injection plastic is as follows:

[0024] Polyamide-imide resin (TORLONPAI-4203, Belgium Solvay (Shanghai) Co., Ltd.) 82 parts;

[0025] Copper powder (800 mesh) 10 parts;

[0026] Carbon fiber (T800 type) 5 parts;

[0027] 5 parts of graphite (800 mesh);

[0028] MoS 2 (800 mesh) 3 parts.

[0029] Injection molding process:

[0030] (1) Surface roughening sandblasting (quartz sand, Sa2.5 grade) for injection molding inserts;

[0031] (2) Heat the mold to keep the temperature of the moving mold and the static mold at 200°C;

[0032] (3) Put the injection molding insert (stainless steel) into the oven, and control the temperature of the oven at 200°C until the temperature of the injection molding insert is constant at 200°C;

[0033] (4) Take the insert for injection molding out of the oven and place it in the designated position of the mold, inject the injection molding material prepared by the formula amount of special engineering plas...

Embodiment 2

[0037] The quality composition of injection plastic is as follows:

[0038] Polyetheretherketone resin (Victrex High Performance Materials Trading (Shanghai) Co., Ltd.) 80 parts;

[0039] 12 parts of copper powder (800 mesh);

[0040] Carbon fiber (T800 type) 6 parts;

[0041] 6 parts of graphite (800 mesh);

[0042] MoS 2 (800 mesh) 4 parts.

[0043] Injection molding process:

[0044] 1. Surface roughening sandblasting (quartz sand, Sa2.5 grade) for injection molding inserts;

[0045] 2. Heat the mold to keep the temperature of the moving mold and the static mold at 200°C;

[0046] 3. Put the injection molding insert (stainless steel) into the oven, and control the temperature of the oven at 200°C until the temperature of the injection molding insert is constant at 200°C;

[0047] 4. Take the injection molding insert out of the oven and place it in the designated position of the mold, inject the injection molding material formulated with the formula amount of special ...

Embodiment 3

[0050] The quality composition of injection plastic is as follows:

[0051] Polyamide-imide resin (TORLONPAI-4203, Belgium Solvay (Shanghai) Co., Ltd.) 72 parts;

[0052] Polyetheretherketone resin (Victrex High Performance Materials Trading (Shanghai) Co., Ltd.) 10 parts;

[0053] 12 parts of copper powder (800 mesh);

[0054] Carbon fiber (T800 type) 3 parts;

[0055] 3 parts of graphite (800 mesh);

[0056] MoS 2 (800 mesh) 2 parts.

[0057] Injection molding process:

[0058] (1) Surface roughening sandblasting (quartz sand, Sa2.5 grade) for injection molding inserts;

[0059] (2) Heat the mold to keep the temperature of the moving mold and the static mold at 200°C;

[0060] (3) Put the injection molding insert (stainless steel) into the oven, and control the temperature of the oven at 200°C until the temperature of the injection molding insert is constant at 200°C;

[0061] (4) Take the injection molding insert out of the oven and place it in the designated positi...

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PUM

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Abstract

The invention provides an injection molding material for preparation of a high-thermal conductivity oil-free self-lubricating rotating shuttle and an injection molding technology therefor. The injection molding material comprises, by mass, 80 to 90 parts of special engineering plastic, 5 to 15 parts of copper powder, 2 to 8 parts of carbon fibers, 2 to 8 parts of graphite, and 1 to 5 parts of MoS2. The high-thermal conductivity oil-free self-lubricating rotating shuttle prepared from the injection molding material does not need lubricating oil so that a rotating shuttle structure is greatly simplified; a sewing machine cost is reduced; the possibility of pollution produced by the lubricating oil on a fabric is minimized; and fabric waste caused by lubricating oil pollution is effectively prevented.

Description

(1) Technical field [0001] The invention relates to an injection molding material for preparing a high thermal conductivity type oil-free self-lubricating rotary hook and its injection molding process. (2) Background technology [0002] The rotary hooks used for sewing machines are generally made of metal materials, such as steel. But its shortcomings are also very obvious. For example: lubrication is required to ensure free rotation, however unfortunately thread breakage occurs during rotation, and at the same time it is unavoidable that the fabric is contaminated by the lubricant added in the middle of the hook. [0003] The prior art mainly contains two kinds of methods to sew fabrics: a kind of is the method for continuous stitching, and another kind is lock stitching. The continuous seam is rarely used to sew high-grade fabric clothing because if the source of the seam is found, the entire seam will be opened. The lock stitch can effectively avoid this phenomenon and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/08C08L61/16C08K13/04C08K7/06C08K3/08C08K3/04C08K3/30B29C45/14
Inventor 高敬民
Owner 上海时航科技有限公司
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