CN1070134A

CN1070134A - Metal die sleeve of grinding wheel and manufacture method thereof

Info

Publication number: CN1070134A
Application number: CN 91108148
Authority: CN
Inventors: 过松俊
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-08-30
Filing date: 1991-08-30
Publication date: 1993-03-24

Abstract

A kind of metal die sleeve of grinding wheel and manufacture method thereof are mainly used in abrasive wheel forming.Die sleeve is made up of inside and outside double layer of metal, and skin is steel or cast iron, and internal layer is high chromium white iron or nickel chromium triangle white iron, and interior layer thickness is 3～6mm.The die sleeve manufacture method is in the sleeve of centrifugal casting machine, cast last layer steel or cast iron earlier, radius of circle (or is worked into the big 3～6mm of the actual die sleeve radius of radius ratio with the interior circular knitting machine of waste and old die sleeve than the big 3～6mm of actual die sleeve radius in it, and insert in the centrifugal casting machine), then high chromium white iron or nickel chromium triangle white iron are cast up, cast layer thickness is 8～12mm, and is last, with the cubic boron cutter circle in it is carried out machined, until given size.Cost of the present invention is low, make easily, and avoided a large amount of die sleeves because of dimension overproof, scrap the waste that brings.

Description

Metal die sleeve of grinding wheel and manufacture method thereof

The present invention relates to a kind of die sleeve of grinding wheel and manufacture method thereof.

Present die sleeve of grinding wheel and manufacture method thereof have two kinds, and the one, behind the intercepting seamless steel pipe, form through turning processing, the last grinding of heat treatment, because the emery wheel specification is many, and the mould amount is limited, can not draw all size steel pipe, the manufacturing cost height of blank so specially.The 2nd, blank is forged, and then machined forms, this method cutting output is big, and manufacturing cost is also very high.In addition, die sleeve of grinding wheel is through the use of a period of time, because wearing and tearing, and size decreases and cause scrapping, this brings greater loss for emery wheel manufacturer

Purpose of the present invention is exactly to propose a kind of die sleeve of grinding wheel that is made of composite and the manufacture method of this die sleeve, and this die sleeve manufacturing cost is lower, and manufacture method is simple, and can use showing written-off die sleeve, has avoided waste.

Technology contents of the present invention is such:

The present invention is composited by two layers of material, and skin is steel or cast iron, and internal layer is high network white iron or nickel chromium triangle white iron, and interior layer thickness is 3～6mm, and the concrete thickness of internal layer will be decided according to the die sleeve size.

The manufacture method of this bimetallic die sleeve of grinding wheel is such: in the sleeve of centrifugal casting machine, elder generation's casting one deck cast steel or cast iron, radius big 3～6mm in garden in the radius ratio die sleeve reality of garden in it, then in the centrifugal casting machine sleeve, make mould with cast steel layer or cast iron layer, high chromium white iron or nickel chromium triangle white iron that surperficial within it top casting one layer thickness is 8～12mm carry out turning with the cubic boron cutter to garden in it, at last again until given size.

Because after present many traditional die sleeves use a period of time, the wearing and tearing of interior garden, size becomes big and scraps, therefore, its radius is strengthened by machined in garden in these die sleeves of having scrapped, make the big 3～6mm of its radius ratio die sleeve real radius, insert then in the sleeve of centrifugal casting machine, one layer thickness of garden top casting within it is high chromium white iron or the nickel chromium triangle white iron of 8～12mm, with the cubic boron cutter turning is carried out in garden in it more at last, until given size.

Technical characterstic of the present invention and result of use:

1, low cost of manufacture, and be easy to make;

2, its inner surface hardness is suitable with existing die sleeve inner surface hardness.

In case the wearing and tearing of 3 die sleeve inner surfaces can be studied for a second time courses one has flunked according to the present invention, and come into operation again, therefore, have saved the production cost of emery wheel factory greatly.

Claims

1, a kind of metal die sleeve of grinding wheel is characterized in that die sleeve made by inside and outside double layer of metal material, and skin is steel or cast iron, and internal layer is high chromium white iron or nickel chromium triangle white iron.

2, the metal die sleeve of grinding wheel of narrating according to claim 1, layer thickness is 3～6mm in it is characterized in that.

3, the manufacture method of metal die sleeve of grinding wheel, it is characterized in that in the centrifugal casting machine sleeve, elder generation's casting one deck cast steel or cast iron, radius big 3～6mm in garden in the radius ratio die sleeve of garden in it, make mould with cast steel layer or cast iron layer again, surperficial within it top casting high chromium white iron internal layer or nickel chromium triangle white iron internal layer, internal layer casting thickness 8-12mm is machined to given size at last; Or at first its radius is strengthened by machined in garden in the old die sleeve, make the big 3～6mm of its radius ratio die sleeve real radius, insert in the centrifugal casting machine sleeve, high network white iron or nickel chromium triangle white iron are cast on the inner surface of old die sleeve, casting thickness 6～12mm is machined to given size again.