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Screening method for pressing materials of round-flat slitter

A screening method and disc technology, applied in chemical instruments and methods, filtration, solid separation, etc., can solve the problems of uneven pressing, large deformation of products, waste, etc., and achieve uniform and stable density distribution and high first-time success rate Improvement, uniform size and stable effect

Inactive Publication Date: 2016-12-07
SICHUAN YR NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing disc cutter is difficult to press and form. Because the disc cutter has a large diameter and is very thin, when pressing with the existing pellets, the density of the semi-finished product is relatively poor, the product is not easy to be placed on the plate, and the metallographic phase of the product cannot be obtained. ensure
If powder is used for pressing, the fluidity of the powder is poor, which will easily lead to uneven pressing and charging, resulting in large deformation of the product after sintering
Therefore, for the production of disc knife in the prior art, its scrap rate is very high, and waste is very big

Method used

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  • Screening method for pressing materials of round-flat slitter

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Embodiment 1

[0019] Such as figure 1 The screening method of a kind of disc knife pressing material shown, comprises the following steps:

[0020] (A) Mix the granules evenly; (B) Sieve the evenly mixed granules with a sieve machine with a mesh number of 80, and collect the raw materials falling from the bottom of the sieve; (C) After sieving for 20 minutes Stop the work of the sieve wiper, and recover the pellets that stay on the sieve of the sieve wiper. The granules in the step (A) are washed and dried before being mixed. The pellets recovered in the step (C) are returned to the furnace.

[0021] The method of the present invention firstly mixes the pellets evenly to ensure that the follow-up process is carried out under the condition of uniform pellets. After that, the uniformly mixed pellets are wiped and screened by a screen wiper with a mesh number of 80. The screen wiper continuously squeezes and crushes the pellets, and finally makes the particle size smaller. drop in the hole...

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Abstract

The invention discloses a method for screening disc-knife-pressed materials, which comprises the following steps: (A) mixing the granules uniformly; (B) wiping the uniformly mixed granules by using a sieve wiping machine with a mesh number of 80 meshes. Sieve to collect the raw materials falling below the sieve; (C) Stop the sieve wiper after 20 minutes of sieve wiper, and recover the pellets that stay on the sieve wiper screen. The invention proposes a screening method for pressing materials of disc knives, so as to realize the purpose of screening the raw materials for pressing disc knives, improving the particle size of the raw materials, and reducing the reject rate of the disc knives.

Description

technical field [0001] The invention relates to the field of disc knife production, in particular to a screening method for pressed materials of disc knives. Background technique [0002] Disc knives, also known as disc knives, are often used in grinding, cutting and other work in the mechanical field, and have a wide market. In the existing wafer cutter production process, pellets or powder are used to press into semi-finished wafers, and then sintered at high temperature to achieve consolidation and molding. However, the existing disc cutter is difficult to press and form. Because the disc cutter has a large diameter and is very thin, when using the existing pellets to press, the semi-finished product has poor density, and the product is not easy to be placed on the plate, and the metallographic phase of the product cannot be obtained. ensure. If powder is used for pressing, the fluidity of the powder is poor, which will easily lead to uneven pressing and charging, resul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/00B07B1/46
CPCB07B1/00B07B1/4609
Inventor 喻林彭慧姜昕
Owner SICHUAN YR NEW MATERIAL TECH
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