Unlock instant, AI-driven research and patent intelligence for your innovation.

Ultra-thin round hard alloy blade with cobalt replaced by iron and nickel

A cemented carbide, iron-nickel technology, applied in the field of cemented carbide ultra-thin round inserts, can solve the problems of blank variability, high cost, and difficult control of the quality of machined products, to eliminate residual stress, enhance machining toughness, Increase the effect of the surface rough grinding process

Inactive Publication Date: 2021-10-12
LAIWU VOCATIONAL & TECHNICAL COLLEGE
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, there are problems in the prior art that the raw material cost of the paper cutter ultra-thin carbide ultra-thin round blade is high, the blank is variable after sintering, and the quality of the machined product is not easy to control.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: One paper cutter is prepared from the iron nickel of cobalt-cobalt carbide, prepared from the following weight parts of the material: WC 80%, 20% bonded metal. Among them, the bond metal consists of a mass fraction of 75% Fe, 20% Ni and 5% CO.

Embodiment 2

[0014] Example 2: One paper cutter is prepared from the iron nickel cobalt carbide, prepared from the following weight parts of the material: WC 85%, 15% of the bonding metal. Among them, the bond metal consists of a mass fraction of 70% Fe, 20% Ni and 10% CO.

[0015] The hard alloy ultra-thin round blade production process of the above embodiment includes the following steps:

[0016] Steps, the preparation of the hard alloy round knife blank material, including:

[0017] 1) ingredients, all kinds of powdery materials of hard alloy ultra-thin round blade materials include tungsten carbide, iron, cobalt, and nickel materials according to formulation;

[0018] 2) The ball mill is mixed, and the alcohol, paraffin molding agent and step are added to the ball mill mixing device, and the measuring powder is added; the ball mill is initiated, and the ball mill is grounded and mixed under the action of the ball mill;

[0019] 3) Drying, transferring the slurry into the drying device for...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an ultra-thin round hard alloy knife with cobalt replaced by iron and nickel for a paper cutter. The round knife is composed of, in percentage by mass, 65%-95% of WC and 5%-35% of a metal binding phase, and the metal binding phase is composed of, in percentage by mass, 70%-90% of Fe, 10%-20% of Ni and 5%-15% of Co. According to the round knife, most of iron and nickel metal is adopted to replace part of expensive metal cobalt, a compact ultra-thin round knife blank with high bending strength is obtained under vacuum and proper preparation, pressing and sintering, and the purpose of reducing the production cost in the industries of paper cutters and the like is achieved.

Description

Technical field [0001] The present invention relates to the technical field of alloy articles, and more particularly to a hard alloy ultra-thin round blade for a paper cutter. Background technique [0002] Excellent use performance of cemented carbide products makes it widely used. However, the carbide production process is relatively complex, high technical content, high production cost. Cobalt is the most important binder in the carbide, but the cobalt is heavy and expensive. Due to the shortage of cobalt resources in my country, the source is unstable, the price is higher, looking for the topic of the material of the replacement of cobalt in the hard alloy to get hard The general concern of alloy workers. [0003] All types of splitters, the hard alloy round blade of the slitting machine belongs to thin parts, and the sintering process is easy to deform, so the production process is particularly high, the product quality is completely relying on equipment, production process. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/08B22F5/00B22F3/02B22F3/10B22F3/24B22F9/04
CPCC22C29/08C22C29/067B22F5/00B22F9/04B22F3/02B22F3/1007B22F3/24B22F2005/001B22F2009/043B22F2003/248B22F2003/247
Inventor 陈文郭丽波李国平
Owner LAIWU VOCATIONAL & TECHNICAL COLLEGE