Casting method of crushing wall or rolling mortar wall

A technology of rolling mortar walls and crushing walls, which is applied to casting molding equipment, casting molds, casting mold components, etc., can solve the problems of environmental pollution, high labor intensity, heavy load of old sand recycling, etc., and achieve excellent comprehensive mechanical properties , high surface finish, and the effect of improving the service life

Inactive Publication Date: 2012-03-21
WUXI HUAYE IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: the molding method is extensive, the efficiency is low, the dimensional accuracy of the casting is low, the surface roughness is poor, especially the thickness of the sand barrier layer of the sand barrier outer chiller is difficult to control, and the quality of the casting is unstable; sticky sand, sand holes, and burrs fly Casting defects such as edges are unavoidable; moreover, it is difficult to clean the water glass sand castings, and the follow-up process is labor-intensive and costly
At the same time, it is also difficult to reuse the old sand of sodium silicate sand. The ratio of iron to sand is generally 1:3~5, the load of old sand regeneration is heavy, and the investment of old sand recycling equipment is large.
Therefore, most enterprises have no choice but to discard the old sand, which will inevitably cause pollution to the surrounding environment.
[0004] The Chinese patent application with the application number 201010154899.4 discloses a method for crushing the manganese steel wall or rolling mortar wall of a cone crusher with inner and outer metal molds covered with sand. , it is still difficult to meet the use requirements under some severe working conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A casting method for crushing walls or rolling mortar walls, comprising the steps of:

[0020] 1) Prepare the metal mold: design the shape of the inner and outer metal molds according to the shape of the casting, leave sand covering and machining allowance during the design, adopt ordinary carbon steel molding, and shape it by machining;

[0021] 2) Preparation of sand covering: sand covering is composed of the following raw materials in parts by weight, 80 parts of standard sand, 5 parts of montmorillonite, 2 parts of attapulgite, 2 parts of iron oxide, and 3 parts of water, and mix the above raw materials evenly can;

[0022] 3) Sand-coated metal mold: evenly apply the sand-coated mold prepared in step 2) to the surface of the mold prepared in step 1), with a coating thickness of 5mm, and then dry the sand-coated metal mold at 80°C for use;

[0023] 4) Smelting and pouring: the composition design of the steel for preparing the broken wall or rolling mortar wall is as...

Embodiment 2

[0026] A casting method for crushing walls or rolling mortar walls, comprising the steps of:

[0027] 1) Prepare the metal mold: design the shape of the inner and outer metal molds according to the shape of the casting, leave sand covering and machining allowance during the design, adopt ordinary carbon steel molding, and shape it by machining;

[0028] 2) Preparation of sand covering: the sand covering is composed of the following raw materials in parts by weight, 90 parts of standard sand, 3 parts of montmorillonite, 3 parts of attapulgite, 1 part of iron oxide, and 5 parts of water. Mix the above raw materials evenly can;

[0029] 3) Sand-coated metal mold: evenly apply the sand-coated mold prepared in step 2) to the surface of the mold prepared in step 1), with a coating thickness of 8mm, and then dry the sand-coated metal mold at 60°C for use;

[0030] 4) Smelting and pouring: the composition design of the steel for preparing the broken wall or rolling mortar wall is as ...

Embodiment 3

[0033] A casting method for crushing walls or rolling mortar walls, comprising the steps of:

[0034] 1) Prepare the metal mold: design the shape of the inner and outer metal molds according to the shape of the casting, leave sand covering and machining allowance during the design, adopt ordinary carbon steel molding, and shape it by machining;

[0035] 2) Preparation of covered sand: The covered sand is composed of the following raw materials in parts by weight, 85 parts of standard sand, 4 parts of montmorillonite, 2.5 parts of attapulgite, 1.5 parts of iron oxide, and 4 parts of water. Mix the above raw materials evenly can;

[0036] 3) Sand-coated metal mold: evenly apply the sand-coated mold prepared in step 2) to the surface of the mold prepared in step 1), with a coating thickness of 7mm, and then dry the sand-coated metal mold at 70°C for use;

[0037] 4) Smelting and pouring: the composition design of the steel for preparing the broken wall or rolling mortar wall is ...

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PUM

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Abstract

The invention discloses a casting method of a crushing wall or rolling mortar wall. The method comprises five steps of preparing a metal mould, preparing coating sand, coating sand on the metal mould, smelting and pouring, and cooling and cleaning. Based on the existing manganese steel and coating sand, the method disclosed by the invention realizes a synergic effect between the manganese steel and the coating sand in the pouring process by adjusting the components of the steel and the composition of the coating sand so that the service life of the prepared casting is prolonged, the comprehensive mechanical properties of the casting are excellent and the performance of the casting process is good.

Description

technical field [0001] The invention relates to the field of casting, in particular to the field of sand-covered metal casting. Background technique [0002] Cone crusher is a crushing equipment widely used in metallurgy, mining, building materials, refractory materials, energy and other industrial industries. The crushing wall and the rolling wall are the main wear parts of the cone crusher. Their quality directly affects the crushing efficiency and quality of raw materials, and also directly affects the output and technical and economic indicators of the product. [0003] At present, the wear-resistant parts of the crushing wall and rolling mortar wall used in the cone crusher are still mainly made of high-manganese steel ZGMn13, or trace alloy elements are added to the matrix of high-manganese steel according to the working conditions to further improve the wear-resistant parts. performance and lifespan. To make the domestic production of broken wall and rolling mortar ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/06B22C3/00C22C38/38
Inventor 张明
Owner WUXI HUAYE IRON & STEEL
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