Method for casting high-speed steel-copper tooth-shaped meshing composite roller step by step

A composite roll and high-speed steel technology, which is applied in the field of step-by-step casting of high-speed steel-copper tooth-shaped meshing composite rolls, can solve the problems of composite rolls such as easy cracking, poor thermal conductivity, and low rolling speed, and achieve high strength and toughness at the core , high thermal conductivity, good surface wear resistance

Active Publication Date: 2017-08-18
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a step-by-step casting high-speed steel-copper tooth profile to solve the problems of poor thermal conductivity, low ro

Method used

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  • Method for casting high-speed steel-copper tooth-shaped meshing composite roller step by step
  • Method for casting high-speed steel-copper tooth-shaped meshing composite roller step by step
  • Method for casting high-speed steel-copper tooth-shaped meshing composite roller step by step

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Example Embodiment

[0052] As shown in the figure, the specific implementation is as follows:

[0053] The total length of the high-speed steel-copper composite roll manufactured in this embodiment is 2580mm; the effective working length of the roll is 1680mm, the outer diameter is 680mm; the two shaft ends are each 450mm long and the diameter is 400mm; the diameter of the cooling water hole is 240mm. The chemical composition of the selected high-vanadium high-speed steel is 1.85C, 1.50Si, 4.90-Cr; 1.35Mo; 0.60Mn; 8.90V by mass percentage, the balance is Fe, and the copper part is pure copper.

[0054] (1) The size of the casting cavity is 2650mm in total length, including 70mm machining allowance; the effective working part of the roll 15 is 1710mm long, including 30mm machining allowance; the outer diameter is 360mm, including machining allowance 20mm; the two shaft ends are 14 and 16 each long 470mm, including machining allowance 40mm; shaft end 14 and 16 diameter 240mm, including machining allowan...

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Abstract

The invention discloses a method for casting a high-speed steel-copper tooth-shaped meshing composite roller step by step. High vanadium high-speed steel and rare earths are taken to constitute a high-speed steel billet material molten liquid and a pure copper solution for standby application; and the high-speed billet material molten liquid is prepared into a billet, and then the copper solution is injected into grooves in the billet layer by layer until the grooves are fully filled, so that product preparation is finished. The roller manufactured by the method has the characteristics of being high in heat conduction efficiency, good in surface abrasion resistance, high in core toughness and the like.

Description

Technical field [0001] The invention relates to the field of hot processing, in particular to a method for gradually casting high-speed steel-copper tooth profile meshing composite rolls. Background technique [0002] The continuous casting and rolling process has become a common method for manufacturing thin aluminum plates. There are about 1,300 continuous casting and rolling aluminum production lines in China, and most of the rolls are made of high-speed steel. Rolls are faced with two main problems: First, because the heat conduction of the rolls in continuous casting and rolling is mainly used to solidify and roll out molten aluminum in the molten state, the thermal conductivity of high-speed steel rolls hinders continuous casting and rolling production of aluminum plates. The main reason for production efficiency is that when high-speed steel is used as the roll material, the rolling speed of the aluminum sheet is about 1m / min, which cannot be effectively increased signifi...

Claims

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Application Information

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IPC IPC(8): B22D19/16B22D13/00C22C38/22C22C38/24C22C38/34C22C38/02C22C38/04
CPCB22D13/00B22D19/0081B22D19/16C22C38/02C22C38/04C22C38/22C22C38/24C22C38/34
Inventor 石磊金文中沈俊芳张伟张立峰崔琦王雷刘明韩敏张俊
Owner LUOYANG INST OF SCI & TECH
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