CN200977544Y

CN200977544Y - Metal type mold

Info

Publication number: CN200977544Y
Application number: CN 200620134942
Authority: CN
Inventors: 赵伟; 党君鹏; 陈淑英; 谭俊涛; 段其瑛; 王洪彬
Original assignee: 郭建华
Priority date: 2006-12-07
Filing date: 2006-12-07
Publication date: 2007-11-21
Anticipated expiration: 2016-12-07

Abstract

A metal mold die set, which comprises mutually clipped mould cope die set main body and mold drag die set main body which are of horizontal subtype structure. At least four grinding ball casting die cavities are arranged around the die set center sand core. The utility model is characterized in that the contacting edge of the grinding ball casting die cavity and the sand core is faceoff. Because the faceoff is arrannged at the contacting part of the grinding ball casting die cavity and the sand core, to increase the thickness and the intensity of the most frail part, to increase the thickness and the mechanical strength of the edge of the metal mold die set die cavity, and to reduce the heat erosion to the metal mold die set ball socket while the molten metal is in high temperature. In the premise of ensuring steady molten metal flow and convenient sand strip after the ladling, the utility model increases the mechanical strength of the contacting part of the metal mold die set die cavity and the sand core, enlarges the pattern stripping draft, and strengthens the chilling action of the die set, therefore increasing the service life of the die set; the grinding ball produced by the utility model has compact structure, refined grains, relatively high intensity, hardness and abrasive resistance, and compared with the existing grinding ball, the performance is obviously improved.

Description

Metal type dies

Technical field

The utility model relates to the production mould of industries such as metallurgy, mine, building materials, steam power plant with abrading-ball, relates to a kind of metal type dies specifically.

Background technology

At present, existing industry is as steam power plant, building materials, the mine, it is circular that abrading-ball used in metallurgy mostly is, cylindrical, oval, water droplet shape or capsule shape etc., the abrading-ball that prior art is produced is many to form with the metal die casting, because abrading-ball contains multiple alloying component, temperature height during the casting of decision molten metal, reasons such as casting rate is fast, the edge (with the core contact portion) of metal type dies die cavity easily destroys by rush of water, " fleshiness " appears in the abrading-ball that casts out, increased the abrading-ball difficulty of post-processing, reduce the service life of mould simultaneously, production cost is risen, be difficult to adapt to the demand of existing every profession and trade.

Summary of the invention

The purpose of this utility model is to overcome existing defective in the above-mentioned metal die and custom-designed a kind of simple in structure and reasonable, easily manufactured, metal type dies that yield rate is high.

The purpose of this utility model realizes by following measure: this metal mold mould comprises the last anvil swage tool body of mutual fastening, described die ontology up and down is the horizontal parting structure, at least be provided with four grounding ball casting die cavities around mold center's core, wherein: the contact edge of grounding ball casting die cavity and core is along being chamfering.Owing to knock the angle down at casting mold cavity and core contact site, increase the thickness and the intensity of weak part, increase the thickness and the mechanical strength at metal type dies die cavity edge, the minimizing molten metal to the thermal etching of metal type dies ball-and-socket, has reduced the heat sensitivity on mould corresponding site (core and mold cavity contact edge edge) when high temperature.Strengthened the hear resistance and the mechanical strength of mould weakest link, thereby greatly prolonged the service life of metal die, production cost is effectively reduced.

In the utility model, be at least four around the grounding ball casting die cavity of mold center's core, also can be and be provided with six.

The utility model compared with prior art has the following advantages:

1. the utility model mould is satisfying under the prerequisite that abrading-ball solidifies demand, knock the angle down at casting mold cavity and core contact site, increase the thickness and the intensity of weak part, increase the thickness and the mechanical strength at metal type dies die cavity edge, reduced the heat sensitivity on mould corresponding site (core and mold cavity contact edge edge).Reduced molten metal thermal etching to the metal type dies ball-and-socket when high temperature.

2. the utility model mould increases the mechanical strength of metal die die cavity and core contact site guaranteeing that molten metal flows steadily, being convenient under the prerequisite of sand removal after the casting, increases pattern draft, strengthens the chilling action of mould, thereby improves the service life of mould; Reduce the contact area of molten metal and core, reduce the probability that the circle distortion in use appears losing in the abrading-ball that casts out.This is because metal has high thermal conductivity and accumulation of heat, when molten metal cooling fast in metal mold cavity, to the corresponding reduction of sensitiveness of casting heat energy-saving position, reduce to form and separate out the tendentiousness of pore, therefore, the abrading-ball that goes out with the utility model die casting, its dense structure, grain refinement has higher intensity and hardness, higher wearability, performance also obviously improve than existing abrading-ball.

Description of drawings

Fig. 1 is that the master of the utility model mould analyses and observe.

Fig. 2 is the vertical view of counterdie among Fig. 1.

The specific embodiment

The utility model is further described below with reference to (accompanying drawing):

As shown in Figure 1, 2: this metal mold mould comprises upper and lower pattern tool body (2), (1) of mutual fastening, described upper and lower die ontology is the horizontal parting structure, be provided with four grounding ball casting die cavities (3) around mold center's core (4), wherein: the contact edge of grounding ball casting die cavity (3) and core (4) is along being chamfering (5).

Owing to knock the angle down at casting mold cavity and core contact site, increase the thickness and the intensity of weak part, increase the thickness and the mechanical strength at metal type dies die cavity edge, reduce molten metal thermal etching to the metal type dies ball-and-socket when high temperature.

Around mold center's core six grounding ball casting die cavity (not shown) can be set also.

Claims

1, a kind of metal type dies, it comprises upper and lower pattern tool body (2), (1) of mutual fastening, described upper and lower die ontology is the horizontal parting structure, at least be provided with four grounding ball casting die cavities (3) around mold center's core (4), it is characterized in that: the contact edge of grounding ball casting die cavity (3) and core (4) is along being chamfering (5).

2, metal type dies according to claim 1 is characterized in that: be provided with six grounding ball casting die cavities (3) around mold center's core (4).