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Manufacturing method of rolling roller inlaid with hard alloy nails

A technology of hard alloy and manufacturing method, which is applied in the field of casting, and can solve problems such as hard alloy nails falling off, easy cracks, and roll sleeve failure.

Inactive Publication Date: 2017-06-23
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the difficulty of drilling, the hardness of the roller sleeve is low, and cracks are prone to appear during use, which will cause the carbide nail to fall off and cause the roller sleeve to fail early

Method used

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  • Manufacturing method of rolling roller inlaid with hard alloy nails
  • Manufacturing method of rolling roller inlaid with hard alloy nails

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Embodiment Construction

[0017] Below in conjunction with embodiment the present invention is described in further detail:

[0018] The invention relates to a manufacturing method of a cemented carbide nailed roller. The cemented carbide nailed roller is composed of a roller core and a roller cover, wherein the roller cover is produced by a centrifugal casting method, and the alloy is cast by centrifugal and compound casting methods. The nails are directly cast on the outer surface of the roller sleeve, and the centrifugal and composite casting of the roller sleeve needs to be completed with the help of centrifugal tooling, such as figure 1 As shown, the centrifugal tooling includes a cold-type tooling 3, a tooling cold-type 4, a tooling upper end cover 2, a tooling lower end cover 5, and a fastening pin 1, which match the outer diameter and height of the roller sleeve and the inner surface is fixed with an alloy nail. , wherein the tooling cold type 4 is a cylinder with steps at both ends, the cold t...

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PUM

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Abstract

The invention discloses a manufacturing method of a cemented carbide nail rolling roller. The cemented carbide nail rolling roller is composed of a roller core and a roller sleeve. The method utilizes centrifugal and composite casting methods to directly insert and cast alloy nails on the roller sleeve. On the outer side of the roller sleeve, the centrifugal tooling used in centrifugal and composite casting includes a cold-type tooling for fixing alloy nails on the inner surface that matches the outer diameter and height of the roller sleeve. The invention adopts the centrifugal casting method to directly insert and cast alloy nails on the outer circumference of the rolling roller sleeve without mechanical inserts; the base of the roller sleeve and the alloy nails are closely combined, and cracks are not easy to cause failure, and at the same time, the production cost is lower than that of mechanical inserts. .

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a method for manufacturing a cemented carbide nail roller. Background technique [0002] In order to solve the problem of low service life of the surfacing roller, the current rolling roller is quenched and tempered with 42CrMo, and the surface of the roller is mechanically drilled, and the carbide nail is embedded on the roller surface, and the hard alloy nail is used to improve Wear resistance of rolling rollers. In order to reduce the difficulty of drilling, the hardness of the roller sleeve is low, and cracks are prone to appear during use, which will cause the carbide nails to fall off and cause the roller sleeve to fail prematurely. Contents of the invention [0003] The technical problem to be solved in the present invention is to provide a method for manufacturing a cemented carbide nail and pressure roller that are closely combined and not easy to fall off...

Claims

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Application Information

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IPC IPC(8): B22D13/02B22D19/16
CPCB22D13/026B22D19/16
Inventor 胡志刚李馨远柳长沼白思诺王保宏张建波王印泽冀鑫刚王国菊
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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