High manganese steel sieve plate for crusher and preparation method of sieve plate

A technology of high manganese steel and crusher, which is applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of large machining allowance, high design and processing costs, and achieve good wear resistance, long service life, low cost effect

Inactive Publication Date: 2015-10-21
芜湖银海机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned methods all need to use metal structural parts as the lost foam, the design and processing costs are high, and the processing allowance is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high manganese steel sieve plate for a crusher, the sieve plate includes a base plate provided with a number of sieve holes, the material of the base plate is high manganese steel, and the chemical element composition and mass percentage contained in the high manganese steel are as follows : C: 1.25%, Mn: 13.5%, Cr: 3.5%, Si: 2.5%, Mo: 0.25%, B: 0.50%, Ti: 0.25%, S: 0.04%, P: 0.04%; the balance is Fe .

[0030] The preparation method of the high manganese steel sieve plate for the above-mentioned crusher mainly includes the following steps:

[0031] Step 1: Modeling, first spread 150mm thick sand on the bottom of the sand box, vibrate, level off and scrape it flat, then hang the prepared sieve plate into the sand box, put it in the center, and put it in the bagging bucket Add sand evenly, add sand while vibrating, stop adding sand when the molding sand is 10-20mm away from the sand box, spread plastic film on the top surface, cover it with dry sand, place the sprue c...

Embodiment 2

[0042] A high manganese steel sieve plate for a crusher, the sieve plate includes a base plate provided with a number of sieve holes, the material of the base plate is high manganese steel, and the chemical element composition and mass percentage contained in the high manganese steel are as follows : C: 1.35%, Mn: 14.3%, Cr: 3.0%, Si: 1.5%, Mo: 0.20%, B: 0.45%, Ti: 0.18%, S: 0.04%, P: 0.04%; the balance is Fe .

[0043] The preparation method of the high manganese steel sieve plate for the above-mentioned crusher mainly includes the following steps:

[0044] Step 1: Modeling, first spread 150mm thick sand on the bottom of the sand box, vibrate, level off and scrape it flat, then hang the prepared sieve plate into the sand box, put it in the center, and put it in the bagging bucket Add sand evenly, add sand while vibrating, stop adding sand when the molding sand is 10-20mm away from the sand box, spread plastic film on the top surface, cover it with dry sand, place the sprue c...

Embodiment 3

[0054] A high manganese steel sieve plate for a crusher, the sieve plate includes a base plate provided with a number of sieve holes, the material of the base plate is high manganese steel, and the chemical element composition and mass percentage contained in the high manganese steel are as follows : C: 1.40%, Mn: 14.6%, Cr: 2.8%, Si: 1.8%, Mo: 0.25%, B: 0.50%, Ti: 0.20%, S: 0.04%, P: 0.04%; the balance is Fe .

[0055] The preparation method of the above-mentioned high manganese steel sieve plate for the crusher is the same as in Example 2.

[0056] In the preparation method of the above-mentioned high manganese steel sieve plate, the manufacturing method of the lost foam of the sieve plate is the same as that in Example 1.

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PUM

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Abstract

The invention discloses a high manganese steel sieve plate for a crusher and a preparation method of the sieve plate. The sieve plate comprises a base plate, wherein a plurality of sieve holes are formed in the base plate; the base plate is made from high manganese steel; the high manganese steel comprises chemical element components in percentage by mass as follows: 1.25-1.45 % of C, 13.5-15.0 % of Mn, 2.5-3.5 % of Cr, 1.2-2.5 % of Si, 0.15-0.35 % of Mo, 0.35-0.55 % of B, 0.15-0.25 % of Ti, no more than 0.05 % of S, no more than 0.05 % of P and the balance of Fe. The preparation method comprises the steps of evaporative pattern preparation, modeling, smelting, slag removing, modification treatment, pouring, sand removing, water-toughening and the like. Compared with the prior art, the high manganese steel sieve plate for the crusher is manufactured by adopting high manganese steel with an evaporative pattern casting method; and the manufactured sieve plate has the advantages of excellent wear resistance, high strength, long service life, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of crushers, in particular to a high manganese steel sieve plate for crushers and a preparation method thereof. Background technique [0002] High-manganese steel sieve plates are commonly used anti-wear alloy castings for screening various ore particles such as mineral processing, building materials, and metallurgy. The sieve plates of various sizes (sieve hole size) produced under the mold casting process have been used by manufacturers for many years, and their service life has increased by 2 times, 3 times, and 4 times, and they are very popular among users. [0003] Lost foam casting (also known as full mold casting) is made of foam plastic (EPS, STMMA or EPMMA) lost foam casting process polymer material to form a full mold with exactly the same structure and size as the part to be cast. After dipping and refractory After the coating (plays the role of strengthening, smoothing, and ventilation) and dry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/60C22C38/38B22C9/04B02C13/284
Inventor 冯航泽
Owner 芜湖银海机械制造有限公司
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