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Processing method for roller sleeve of roller press

A processing method and technology of a roller press, applied in the field of roller press, can solve the problems affecting the wear resistance and service life of the wear-resistant layer, and achieve the effects of shortening downtime, good wear resistance and cost saving

Active Publication Date: 2013-03-13
CHONGQING JINGQING HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the one-character roll sleeve of combined roller mainly adopts the structure of surfacing wear-resistant materials on the roll surface. Due to the characteristics of surfacing welding process, there are welding cracks in the wear-resistant pattern, and welding cracks directly affect the wear-resistant layer. Grinding and service life

Method used

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  • Processing method for roller sleeve of roller press
  • Processing method for roller sleeve of roller press
  • Processing method for roller sleeve of roller press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The process steps of the roller cover are as follows:

[0030] 1) Forging: the alloy steel ingot is processed into a blank sleeve body 1 by forging to form the basic shape of the roll sleeve, and the sleeve body 1 is a straight circular sleeve structure;

[0031] 2) The first heat treatment: the casing 1 is heated to 600°C at a rate of less than 50°C / h in the heat treatment furnace, and the temperature is maintained for 4 hours; And the heat preservation time is 8 hours; finally take it out of the oven and air cool;

[0032] 3) The first machining: First, the shape of the sleeve body 1 is machined by turning, and then the grooves 2 are axially processed on the outer peripheral surface of the sleeve body 1 with a customized tool. The grooves 2 are evenly distributed on the circumference, and the two sides Inline ribs 3 are formed between adjacent grooves 2;

[0033] 4) The second heat treatment: heat the semi-finished product after the first machining to 600°C at a rat...

Embodiment 2

[0036] The process steps of the roller cover are as follows:

[0037] 1) Forging: the alloy steel ingot is processed into a blank sleeve body 1 by forging to form the basic shape of the roll sleeve, and the sleeve body 1 is a straight circular sleeve structure;

[0038] 2) The first heat treatment: the body 1 is heated to 650°C at a rate of less than 50°C / h in the heat treatment furnace, and the temperature is maintained for 5 hours; And the heat preservation time is 11 hours; finally take it out of the oven and air cool;

[0039] 3) The first machining: First, the shape of the sleeve body 1 is machined by turning, and then the grooves 2 are axially processed on the outer peripheral surface of the sleeve body 1 with a customized tool. The grooves 2 are evenly distributed on the circumference, and the two sides Inline ribs 3 are formed between adjacent grooves 2;

[0040]4) The second heat treatment: raise the temperature of the semi-finished product after the first machining...

Embodiment 3

[0043] The process steps of the roller cover are as follows:

[0044] 1) Forging: the alloy steel ingot is processed into a blank sleeve body 1 by forging to form the basic shape of the roll sleeve, and the sleeve body 1 is a straight circular sleeve structure;

[0045] 2) The first heat treatment: the casing 1 is heated to 700°C at a rate of less than 50°C / h in the heat treatment furnace, and the temperature is maintained for 6 hours; And the time of heat preservation is 14 hours; finally it is out of the oven and air-cooled;

[0046] 3) The first machining: First, the shape of the sleeve body 1 is machined by turning, and then the grooves 2 are axially processed on the outer peripheral surface of the sleeve body 1 with a customized tool. The grooves 2 are evenly distributed on the circumference, and the two sides Inline ribs 3 are formed between adjacent grooves 2;

[0047] 4) The second heat treatment: raise the temperature of the semi-finished product after the first mac...

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Abstract

The invention discloses a processing method for a roller sleeve of a roller press, which comprises the following steps: forging, first time heat treatment, first time machining, second time heat treatment, second time machining and the like. According to the invention, the method effectively avoids welding cracks caused by build-up welding, and has the characteristics of good wearing resistance, long service life, ensured rolling efficiency and effect, simple structure, easiness in processing and fabrication, low cost, convenience in replacement and the like.

Description

technical field [0001] The invention belongs to the technical field of roller presses, and in particular relates to the processing technology of roller sleeves of roller presses. Background technique [0002] Roller presses have been widely used in cement and raw meal grinding in the cement industry. It is another major technological advancement after the pre-decomposition process outside the kiln. The application of the roller press not only reduces the power consumption, but also improves the mill output and product quality. However, the surface wear of the squeeze roller often affects normal production, and has always been valued by developers and users. [0003] For the extrusion roller of the roller press, it is one of the key components of the roller press. Since the material is ground through the high-stress extrusion of the extrusion roller, the wear of the extrusion roller is inevitable. Therefore, the life of the squeeze roller is a technical indicator that the u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B02C4/30
Inventor 胡沿东唐文魏光陆郑海涛
Owner CHONGQING JINGQING HEAVY MACHINERY
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