CN2232798Y

CN2232798Y - Double metal wear resistance hammer made of electroslag casting

Info

Publication number: CN2232798Y
Application number: CN 95237238
Authority: CN
Inventors: 向龙生; 肖伯俊; 汤忠超; 黄显达; 梅松华; 贺世东
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-21
Filing date: 1995-07-21
Publication date: 1996-08-14
Anticipated expiration: 2005-07-21

Abstract

The utility model relates to a double-metal wear resistant hammer made by electroslag casting, belonging to a hammer for hammer crushers. The utility model is composed of a hammer head and a hammer handle, wherein, the hammer handle and the hammer head are connected together by an osmosis double-metal layer which is formed by high chromium cast iron and middle and low carbon steel by electroslag casting, so that the hammer head can effectively exert the wear resistance of the high chromium cast iron, and the hammer handle which can have powerful enough impact toughness can not be broken at work. Accordingly, the number of times for maintenance and time for replacing a hammer head in the work of the hammer crushers can be reduced, labour intensity for workers can be decreased, and (social) economical benefits can be enhanced.

Description

The wear-resistant tup of slag smelting founding bimetallic

The utility model relates to a kind of tup that is used for hammer mill.

Hammer mill is the crushing mechanism that is widely used in aspects such as mine, building materials, water conservancy.Tup is a kind of main consumable accessory in the hammer mill.For many years, tup all is to adopt potassium steel, low-alloy steel monoblock cast, forging, built-up welding or casting to infilter row manufacturing, has both wasted raw material, and service life is not long yet.In recent years, adopt rich chromium cast iron mild steel compound casting tup both at home and abroad, owing to be difficult to control the cast temperature and the speed of molten metal, be easy to generate tup and hammer handle layering when the casting tup is produced, had a strong impact on the quality of tup.Rich chromium cast iron is called as third generation anti-friction material at home and abroad is used widely, and its hardness can reach HRC62-67, has very high abrasion resistance, but casts tup with this material monolithic, and impact flexibility is low, and tup fractures easily.

The purpose of this utility model just provides a kind of electroslag smelting casting rich chromium cast iron-wear-resistant tup of middle low carbon steel bimetallic, makes tup both bring into play the wear-resistant advantage of rich chromium cast iron effectively, makes hammer handle possess enough strong impact flexibility again.

The technical solution of the utility model is: be made of tup and hammer handle, wherein tup and hammer handle are to link together by the infiltration double-metal layer that electroslag smelting casting rich chromium cast iron one middle low carbon steel forms.

In technique scheme, rich chromium cast iron is a tup, and middle low carbon steel is a hammer handle, both adopt the production technology of electroslag smelting casting to be combined as a whole, and make foundry goods tup metallographic crystallization even compact, the tissue fibroblast shape, performance with forging does not rupture and does not come off to have guaranteed tup.The working portion of tup is a high chromium cast iron material, has higher wear resistence, long service life, hammer handle has stronger impact flexibility, do not rupture in the work, therefore, reduced maintenance number of times and the time of changing tup in the hammer mill work, reduce working strength of workers, improved (society) economic benefit.

Describe in detail below in conjunction with the embodiment accompanying drawing.

At first accompanying drawing is described:

Fig. 1 represents the structure chart of tup;

Fig. 2 represents the embodiment of electroslag smelting casting rich chromium cast iron-wear-resistant tup of middle low carbon steel bimetallic.

As shown in Figure 1, hammer handle (1) is a middle low carbon steel, and tup (2) is the rich chromium cast iron people, and both link together by the infiltration double-metal layer (3) that is formed by electroslag smelting casting rich chromium cast iron and middle low carbon steel.

Specifically implement referring to Fig. 2

Prepare middle low carbon steel hammer handle (1), rich chromium cast iron electrode (4), then hammer handle (1) is contained in the water mold (5), insulating barrier on the pad (6), the solid electroslag (7) of packing into, be contained in rich chromium cast iron electrode (4) on the control frame and move down make it contact with electroslag (7) energising after, change slag earlier, make wear-resistant high chromium cast iron material in water mold (5), form tup (2) by the electroslag smelting casting production technology then, and and the hammer handle (1) of middle low carbon steel material be fused into an integral body, middle formation permeated double-metal layer (3), thereby the hammer handle (1) of two kinds of different materials and tup (2) founding are combined.

Claims

1, the wear-resistant tup of a kind of slag smelting founding bimetallic is to be made of tup and hammer handle, it is characterized in that hammer handle (1) and tup (2) are to link together by the infiltration double-metal layer (3) that is formed by electroslag smelting casting rich chromium cast iron-middle low carbon steel.