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Powder metallurgy composition and method for manufacturing sensor chain block of braiding machine

A sensor chain and composition technology, applied in the field of powder metallurgy, can solve the problems of poor wear resistance, short service life and poor wear resistance of sensor chain blocks of braiding machines, and achieve the effects of less labor, excellent wear resistance and high density

Active Publication Date: 2016-09-14
RONGCHENG HONGCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the wear resistance of the existing powder metallurgy composition is poor, so that the wear resistance of the prepared braiding machine sensor chain block is poor and the service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The materials are taken according to the following mass percentages: graphite 0.75%, micronized wax 0.65%, diffusion pre-alloyed powder 25%, and the balance is atomized powder (73.6%). Among them, the diffusion pre-alloyed powder is composed of the following substances in mass percentage: 1.55% copper, 2.5% nickel, 1.25% molybdenum, 0.35% manganese sulfide, and the balance is iron (94.35%). The invention adds a small amount of micro-wax powder in the mixing process to facilitate molding, and adds manganese sulfide (MnS) to facilitate subsequent mechanical processing. According to the preparation method of the prior art, the diffusion pre-alloyed powder is obtained by using water-atomized iron powder as a basic raw material, adding other alloying element powders, and being mixed, diffused, crushed and sieved. The atomized powder is LAP100.29 atomized iron powder. The specific method of manufacturing the sensor chain block of the knitting machine is as follows:

[0023]...

Embodiment 2

[0038]The materials are taken according to the following mass percentages: graphite 0.55%, micronized wax 0.8%, diffusion pre-alloyed powder 35%, and the balance is atomized powder (63.65%). Among them, the diffusion pre-alloyed powder is composed of the following substances in mass percentage: 1.25% copper, 1.8% nickel, 2.5% molybdenum, 0.47% manganese sulfide, and the balance is iron (93.98%). According to the preparation method of the prior art, the diffusion pre-alloyed powder is obtained by using water-atomized iron powder as a basic raw material, adding other alloying element powders, and being mixed, diffused, crushed and sieved. The atomized powder is LAP100.29 atomized iron powder. The specific method of manufacturing the sensor chain block of the knitting machine is as follows:

[0039] Step S1: Mixing

[0040] Weigh the atomized powder, diffused pre-alloyed powder, graphite powder, and micro-wax powder according to the above proportions, and pour them into the dou...

Embodiment 3

[0054] The materials are taken according to the following mass percentages: graphite 0.95%, micronized wax 0.8%, diffusion pre-alloyed powder 50%, and the balance is atomized powder (48.25%). Among them, the diffusion pre-alloyed powder is composed of the following mass percentages: 4.5% copper, 2.5% nickel, 2.5% molybdenum, 0.7% manganese sulfide, and the balance is iron (89.8%). According to the preparation method of the prior art, the diffusion pre-alloyed powder is obtained by using water-atomized iron powder as a basic raw material, adding other alloying element powders, and being mixed, diffused, crushed and sieved. The atomized powder is LAP100.29 atomized iron powder. The specific method of manufacturing the sensor chain block of the knitting machine is as follows:

[0055] Step S1: Mixing

[0056] Weigh the atomized powder, diffused pre-alloyed powder, graphite powder, and micro-wax powder according to the above proportions, and pour them into the double-cone mixer ...

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Abstract

The invention discloses a powder metallurgy composition. The powder metallurgy composition consists of graphite powder with a mass percentage of 0.45% to 0.95%, micronized wax with a mass percentage of 0.65% to 0.85%, and a mass percentage of 20% to 50%. It consists of diffused pre-alloyed powder and atomized powder with a mass percentage of 48.25% to 78.7%. The invention also discloses a method for manufacturing the sensor chain block of the braiding machine. In the present invention, a composite material is used to replace the original dense material, and the wear-resistant diffusion pre-alloying element is pre-alloyed with iron powder, and then added in the form of diffusion pre-alloy powder instead of adding in the form of simple substance, and the pre-alloyed The process of stirring and mixing replaces the process of melting and casting dense materials, which makes the finished product have excellent wear resistance and the service life is increased by 30.1 times.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a powder metallurgy composition and a method for manufacturing a sensor chain block of a braiding machine. Background technique [0002] Powder metallurgy parts are engineering materials with rapid development and great application potential. Because of its characteristics of material saving, energy saving, low price, uniform product quality and final precision parts, it is widely used in machinery, aviation, aerospace and other fields. The common ones are pulleys, sprockets, gear hubs, cams, and connecting rods. , valve seat, etc. [0003] The knitting machine can be used for knitting sweaters, gloves, steel wire, wire mesh, straw rope, elastic bands, plastic mesh bags, etc. The sensor chain block of the knitting machine is required to have good wear resistance due to frequent friction. The existing knitting machine sensor chain block is made of a dense material pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F3/00B22F5/00C22C38/00
Inventor 马杰民陈亮朱秀希张淑良
Owner RONGCHENG HONGCHENG NEW MATERIAL CO LTD
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