Efficient casting process for vertical grinding roller sleeve with simple model

A vertical mill roller sleeve and casting process technology, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems that affect the authenticity rate of products, time-consuming and labor-consuming, and local looseness, so as to save production time and increase insurance. The effect of short coefficient and feeding distance

Inactive Publication Date: 2018-07-17
HEFEI RUIHONG HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This casting method needs to place external chill iron or internal cooling ribs at the lower part of the casting to artificially manufacture the end zone, which is time-consuming and labor-intensive. At the same time, it is affected by factors such as high or low steel temperature, heat dissipation effect of the riser, or untimely replenishment. , there may be local looseness under the riser, which affects the authenticity rate of the product

Method used

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  • Efficient casting process for vertical grinding roller sleeve with simple model
  • Efficient casting process for vertical grinding roller sleeve with simple model
  • Efficient casting process for vertical grinding roller sleeve with simple model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, an efficient casting process of a simple vertical mill roller sleeve includes the following steps:

[0032] (1) The preparation of the casting process of the roller sleeve of the vertical mill, including the design of the gating system and the design of the riser, the design of the circular riser 2 at the upper center of the casting body 1 of the vertical mill roller sleeve 3 serves as a feeding channel function, the riser 2 is higher than the cone root position of the vertical mill roller sleeve casting body 1 to form a pressure head; (2), make a wooden mold according to the process requirements, and position the wooden mold on the template; (3), Make casting mold; (4), close case, dry sand mold, the molding sand used is made of the following raw materials by weight: 100 parts of silica sand, 12 parts of water glass, 15 parts of water, 0.8 part of phenolic resin, 25 parts of bentonite and ...

Embodiment 2

[0035] The molding sand used in step (4) is made of the following raw materials in parts by weight: 100 parts of silica sand, 10 parts of water glass, 10 parts of water, 0.5 parts of phenolic resin, 20 parts of bentonite and 5 parts of aluminum tripolyphosphate; the rest are the same as in the implementation example 1.

Embodiment 3

[0037] The molding sand used in step (4) is made from the following raw materials in parts by weight:

[0038] 100 parts of silica sand, 15 parts of water glass, 20 parts of water, 1 part of phenolic resin, 30 parts of bentonite and 10 parts of aluminum tripolyphosphate; the rest are the same as in Example 1.

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Abstract

The invention discloses an efficient casting process for a vertical grinding roller sleeve with a simple model. According to the efficient casting process, the feeding distance is short, cold iron does not need to be used, meanwhile, the overall modeling height is short, and compared with a traditional process mold, one half of materials and the manufacturing time are saved; and a dead head is concentrated in the middle temperature, the process yield of the whole ring sand dead head is basically about 50%, and the casting process can improve the product yield by about 50%.

Description

technical field [0001] The invention belongs to the technical field of casting, and relates to a casting process of a roller sleeve of a vertical mill, in particular to a casting process of a roller sleeve of a vertical mill with a simple shape and no need for cooling iron. Background technique [0002] In recent years, with the continuous expansion of production capacity in building materials, coal and other industries, vertical mills, as a good grinding equipment, are widely used in grinding raw materials, cement, coal powder and other fields. The vertical mill has stable mechanism performance, high abrasive efficiency and long service life. In the vertical mill components, the grinding roller is the main component for crushing and crushing the material. The grinding roller is mainly composed of a roller sleeve, a roller core, a grinding shaft, a bearing, etc., and the vertical mill roller sleeve is a key component for the grinding operation of the vertical mill. Its serv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/24B22C9/08
CPCB22C9/02B22C9/088B22C9/24
Inventor 费贤超
Owner HEFEI RUIHONG HEAVY MACHINERY
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