CN2380317Y

CN2380317Y - Regenerated tungsten-carbide roller ring

Info

Publication number: CN2380317Y
Application number: CN 99228262
Authority: CN
Inventors: 殷凤高
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-06
Filing date: 1999-05-06
Publication date: 2000-05-31
Anticipated expiration: 2009-05-06

Abstract

The utility model provides a regenerated tungsten-carbide roller ring, which regenerates and reuses a roll ring discarded by abrasion, crack, block disconnection, etc. A ring body wall is provided with a line rolling slot. The utility model is characterized in that a ring body is composed of the ring body layer of a waste tungsten-carbide roller ring and a ring body regenerating layer formed by hot pressing sintering. The utility model adopts the discarded roller ring as the raw material of a main body and thus the cost is greatly reduced. The hardness and the wear resistance of the ring body regenerating layer made by adopting the hot pressing sintering process are higher than an original roller ring.

Description

The regeneration carbon tungsten roller ring

The utility model belongs to the collars of rolled metal wire rod.

The collars that is used for the rolled metal wire rod has some rolling line grooves for having certain thickness torus on the ring body wall.The position of the semicircle rolling line groove of two adjacent collars is corresponding one by one, forms circular rolling line groove.Along with the rotation of adjacent collars, metal wire rod is finished the rolling work of wire rod by said circular rolling line groove.Said collars is many to be that high-abrasive material sintering after colding pressing of main body forms in order to tungsten carbide.Behind the rolling a certain amount of metal wire rod of collars, the rolling line groove on each collars will no longer be semicircle toward the depth direction abrasion.For guaranteeing being of the required size of metal wire rod rolling, require the rolling line groove that the degree of depth after denuding increases is revised, its method is to justify collars wall grinding one deck of width of cloth groove outside with special-purpose abrasive machine, makes the rolling line groove again near semicircle.Through the several times correction, the collars wall is ground to a certain degree, does to scrap processing.Also there is the considerable part collars in rolling, to ftracture or falls piece and scrap.Make because collars is a hard special alloy material, cost an arm and a leg, the collars of scrapping is a kind of great waste.

The purpose of this utility model is to provide a kind of carbon tungsten roller ring of regeneration, makes through using abrasion or splitting, fall piece and the collars scrapped obtains regeneration, reaches the performance requirement of original carbon tungsten roller ring qualitatively fully.

Have the rolling line groove on the ring body wall of the present utility model, it is characterized in that ring body constitutes by the ring body layer of waste and old carbon tungsten roller ring and through the ring body regeneration zone that hot pressed sintering forms.

Because the utility model is a body layer to scrap roll body, makes the collars of scrapping obtain regeneration, has reduced cost significantly.The ring body regeneration zone adopts hot-pressing sintering technique to make, and its pressed density is higher than former cold-rolled sintered useless collars, and hardness and wearability are higher than former collars.

Fig. 1 is a front view of the present utility model;

Fig. 2 is the B of the utility model Fig. 1---the B cutaway view;

Fig. 3 is a side view of the present utility model;

Fig. 4 is the A of the utility model Fig. 3---the A cutaway view.

Below in conjunction with description of drawings embodiment.

See Fig. 1, Fig. 3,1 is collars body of the present utility model, and 2 is the semicircle rolling line groove on the ring body wall, and two rolling line grooves are arranged among the figure, and the rolling line groove of other quantity also can be arranged.See Fig. 2, Fig. 4,3 is the hole of collars among the figure, and 4 is the ring body regeneration zone, and 5 is the ring body layer of waste and old collars body.

Making of the present utility model:

To after carrying out surface treatment, the useless collars of the tungsten carbide of abrasion insert graphite jig, around the useless collars ring body wall of alloy compound powder adding, and pressure sintering, according to the utility model of different size specification, pressure, temperature, asynchronism(-nization).For example, be 8 inches collars for external diameter, pressure is 6---7 megabars (Mpa), sintering temperature are 1350---1360 ℃, temperature-time 50---60 minutes.Above-mentioned said alloy compound is based on the tungsten carbide powder, and according to the collars of different size and model, tungsten carbide powder ratio is 50---and 90%, the rest is cobalt-based, Ni-based powder as binding material etc.Behind hot pressed sintering, on the ring body layer of carbon tungsten roller ring, form the ring body regeneration zone through denuding or ftracture, fall piece.In the hot pressed sintering process, elimination can be melted in the crack for the ring body layer that ftractures.For falling piece, can melt and supply.The collars chaeta base that hot pressed sintering goes out is processed with skive, each face of collars body and external diameter, endoporus, rolling line groove and dimensioned thereof to necessary requirement, are detected the product technology performance.In the above-mentioned hot-pressing sintering technique process, pressurized equipment available hydraulic machine, punching machine or jack etc., firing equipment can be used intermediate frequency, high frequency or mid freqency induction furnace, perhaps is heated by resistive stove.The thickness of ring body regeneration zone is looked useless the collars of various different size specifications and the concrete condition of erosion degree thereof, does not wait from 0.5 millimeter to 100 millimeters.Certainly also can choose other sizes in case of necessity.

Claims

1, the regeneration carbon tungsten roller ring has the rolling line groove on the ring body wall, it is characterized in that ring body constitutes by the ring body layer of waste and old carbon tungsten roller ring and through the ring body regeneration zone that hot pressed sintering forms.

2, by the described collars of claim 1, it is characterized in that said ring body regeneration zone thickness is 0.5 millimeter to 100 millimeters.