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Super-antiwear cast form nylon pulley and processing method thereof

A technology of casting nylon and pulleys, which is applied in the direction of belts/chains/gears, portable lifting devices, hoisting devices, etc., which can solve the problems of reducing the service life of supporting parts, easily damaged steel wire ropes, and poor wear resistance, and achieve the purpose of strengthening the whole machine Performance, excellent mechanical properties, good shock absorption performance

Inactive Publication Date: 2009-06-24
扬州赛尔达尼龙制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Traditional pulleys mostly use cast iron or cast steel. They have poor wear resistance and are heavy. When working, they are easy to damage the wire rope. When they rub against the wire rope, a lot of heat will be generated, which will reduce the service life of the supporting parts.

Method used

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Embodiment Construction

[0025] The super wear-resistant cast nylon pulley is produced by the process of monomer casting reaction using the basic anionic polymerization mechanism. The casting process can be divided into static casting and centrifugal casting: static casting means that the mold is stationary when the pulley is solidified and formed; centrifugal casting means that the pulley is solidified and formed while the mold is rotating.

[0026] The production process is divided into five stages. The first stage is the preparation stage of the mold. According to the pulleys of different specifications, select the corresponding mold (aluminum or steel), evenly brush the mold release liquid, put it in the heating box, and put the glass thermometer to measure the temperature; When the mold temperature reaches 145°C-190°C, start pouring.

[0027] The second stage is the preparation of activated molecules. Put 1,000 parts of the monomer caprolactam masterbatch into the melting tank, connect the conde...

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PUM

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Abstract

Super wear-resistant cast nylon pulley and its processing method. The present invention relates to a polymer material-nylon 6, and also relates to a method for processing the pulley from this material. The technical solution of the invention is: the weight ratio of caprolactam, accelerator and curing agent in the material is 1000:1.2-1.6:3-4. The present invention has the following characteristics: 1. Small density, light weight, small inertia and stable operation; 2. Excellent mechanical properties, high strength, high rigidity, good toughness, creep resistance, impact resistance, high shape stability, and can Steel pulleys are completely interchangeable. 3. Good wear resistance and self-lubricating performance. 4. Oil resistance, corrosion resistance, no rust, 5. Good shock absorption performance, no noise.

Description

technical field [0001] The present invention relates to a polymer material-nylon 6, and also relates to a method for processing the pulley from this material. Background technique [0002] Traditional pulleys mostly use cast iron or steel, which have poor wear resistance and are heavy. During work, they are easy to damage the steel wire rope. When they rub against the steel wire rope, a lot of heat will be generated, which will reduce the service life of the supporting parts. Contents of the invention [0003] Aiming at the above problems, the present invention provides a cast nylon pulley made of polymer material—nylon 6 and a processing method thereof. [0004] The technical solution of the invention is: the weight ratio of caprolactam, accelerator and curing agent in the material is 1000:1.2-1.6:3-4. [0005] The accelerator is sodium metal, sodium alkoxide, sodium hydroxide or sodium carbonate. [0006] The curing agent is acetyl caprolactam. [0007] The curing age...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/50C08L77/02C08K5/29C08K3/00
Inventor 张爱平程维斌
Owner 扬州赛尔达尼龙制造有限公司
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