CN2728751Y

CN2728751Y - Isostatic pressure mould

Info

Publication number: CN2728751Y
Application number: CN 200420088681
Authority: CN
Inventors: 陈特夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-28
Filing date: 2004-09-28
Publication date: 2005-09-28
Anticipated expiration: 2014-09-28

Abstract

The utility model discloses an isostatic pressure mould. According to the principle of Pascal Isostatic Pressure, the utility model is designed for guaranteeing homogeneous extrusion force to each position of the product, comprising an upper mould, a lower mould, an elastica rubber layer coating on the working surface of either the upper mould or the lower mould or both. The elastica rubber layer is provided with a sealed cavity full of liquid inside. A charging hole with a sealing plug is arranged on the upper mould and the lower mould, communicating with the cavity. The upper mould and the lower mould is the metal die or the concave-convex mould. The cavity is continuous or formed by a plurality of partial loculus connected with each other through channels. The utility model has the advantages of simple structure, low cost, small deformation in solid power agglomeration, non-easy cracking, and high qualified rate.

Description

A kind of isostatic tooling

Technical field

The utility model relates to a kind of mould, especially relates to a kind of isostatic tooling that raw material is a solid powder of suppressing.

Background technology

Utilizing mould to manufacture product has been a kind of important method on the industrial production, utilizes mould that the production method of nonmetal, metal or the solid powder compression moulding that both mix is also more generally used equally.In the prior art, the solid powder filling is behind mould cavity, it is inhomogeneous to occur cloth easily, and the extruding force at each position of compression moulding process do not wait, and causes goods degree of packing difference everywhere, is easy to produce distortion, cracking in the sintering curing process, each is bad to homogeneity for goods, loose, mechanical strength is relatively poor, and job efficiency is low.In order to overcome above-mentioned deficiency, people have made a kind of mould inside and have been provided with and are pasted with elastomeric isostatic tooling on oil pocket and the working face, as application number is 00207858, the applying date is on April 5th, 2000, denomination of invention is a kind of patent of ceramic tile isostatic tooling, comprise steel matrix, oil pocket, elastomer, it is characterized in that on described steel matrix working face, equidistantly distributing one group of step oil pocket that connects each other or making the big plane groove shape oil pocket that periphery is provided with seal groove; Described elastomer precursor gum is connected on oil pocket step periphery or the seal groove periphery steel matrix, and elastomer bottom surface and step anchor ring distance equal the oil pocket degree of depth less than this oil pocket degree of depth or elastomer bottom surface with big plane groove shape oil pocket bottom surface distance.But this patent structure is complicated, the manufacturing process complexity, manufacturing cost is higher, and come unstuck easily, bulge.

Summary of the invention

The purpose of this utility model be exactly to provide in order to solve above-mentioned deficiency be out of shape after a kind of solid powder goods sinter molding little, not easy to crack, the job efficiency height, simple and reasonable, the isostatic tooling that cost is low.

The utility model is realized above-mentioned purpose by following technical proposals:

The utility model is made of upper die and lower die, be pasted with the elasticity glue-line on contacted of upper die and lower die both or one of them and the pressed powder, in the elasticity glue-line, be provided with the cavity of sealing, be full of liquid in the cavity, corresponding with elasticity glue-line set on the upper die and lower die, the corresponding liquid injection hole that communicates with cavity that is provided with on the upper die and lower die, place, liquid injection hole aperture is provided with sealing-plug.Can be provided with framed or side plate around between patrix and counterdie, form die cavity.

Described patrix or counterdie can be metal die, and patrix or counterdie also can be concavo-convex mould.Cavity is that complete continuous cavity also can be made up of the loculus of a plurality of parts, is provided with the raceway groove that is used for mutual UNICOM between each loculus.Upper die and lower die are respectively the monolithic construction that can not be split.One of upper die and lower die or both can be detachable fabricated structure.

The utility model waits the static pressure principle according to liquid Pascal, solid powder is in forming process, the suffered extruding force in each position of goods all equates, effectively guaranteed goods everywhere density evenly, the distortion and the cracking of goods have effectively been reduced, the job efficiency height, and improved the performance of the each side such as mechanical strength of goods.The utility model is not easy to occur glue and takes off phenomenon, elasticity glue-line long service life; Acquisition waits the static pressure area big, waits the static pressure effect remarkable.The utility model is simple in structure, cost is low, easy to use, good manufacturability, and the efficient height, oil seal is good, can be satisfied with the needs of batch process.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

Fig. 1 is the cross-sectional view of the utility model one embodiment;

Fig. 2 is the cross-sectional view of another embodiment of the utility model;

Fig. 3 is the cross-sectional view of the embodiment of the utility model working face when being the plane;

Fig. 4 is the part-structure schematic diagram of sealed cavity punch die when being made up of the loculus of a plurality of parts.

Specific embodiment

As shown in Figure 1, this embodiment of the present utility model is made up of patrix 1, counterdie 2, elasticity glue-line 3, patrix 1 is a metal die, counterdie 2 is a die, patrix 1, counterdie 2 are that ceramic powders 4 contacted faces are its working faces 5 with solid compacting powder, elasticity glue-line 3 is coated on the working face 5 of counterdie 2, be provided with sealing and complete continuous cavity 6 in the elasticity glue-line 3, be full of liquid 7 in the cavity 6, corresponding with elasticity glue-line 3 set on patrix 1, the counterdie 2, the corresponding liquid injection hole that communicates with cavity that is provided with on the counterdie 2, place, liquid injection hole aperture is provided with sealing-plug.Patrix 1, counterdie 2 are respectively the monolithic construction that can not be split.

As Fig. 2, this embodiment is made up of patrix 1, counterdie 2, elasticity glue-line 3, framed 8, framed 8 be located between patrix 1 and the counterdie 2 around, form die cavitys with patrix 1 and counterdie 2.Patrix 1, counterdie 2 are two dies, elasticity glue-line 3 is coated on patrix 1, counterdie 2 working faces 5, is provided with the complete continuous cavity 6 of sealing in the elasticity glue-line 3, is full of liquid 7 in the cavity 6, patrix 1, counterdie 2 are provided with the liquid injection hole that communicates with cavity, and place, liquid injection hole aperture is provided with sealing-plug.Patrix 1, counterdie 2 are respectively the monolithic construction that can not be split.

As Fig. 3, be with the difference part of Fig. 2: patrix 1 is the plane with the working surface of counterdie 2.As Fig. 4, sealed cavity 6 is made up of the loculus 61 of four parts, is provided with the raceway groove 9 that is used for mutual UNICOM between each loculus 61.

One of the patrix 1 of above-mentioned mould and counterdie 2 or both also can be detachable fabricated structure.Framed 8 also available side plates substitute.

By said structure as can be known, the utility model is simple and reasonable, and cost is low, after the solid powder sinter molding distortion little, not easy to crack, the job efficiency height.

Claims

1, a kind of isostatic tooling, constitute by upper die and lower die, be pasted with the elasticity glue-line on contacted of upper die and lower die both or one of them and the pressed powder, it is characterized in that: the cavity that in the elasticity glue-line, is provided with sealing, be full of liquid in the cavity, corresponding with elasticity glue-line set on the upper die and lower die, the corresponding liquid injection hole that communicates with cavity that is provided with on the upper die and lower die, place, liquid injection hole aperture is provided with sealing-plug.

2, isostatic tooling according to claim 1 is characterized in that: be provided with framed or side plate around between patrix and counterdie, form die cavity.

3, isostatic tooling according to claim 1 and 2 is characterized in that: described patrix or counterdie are metal die.

4, isostatic tooling according to claim 1 and 2 is characterized in that: described patrix or counterdie are concavo-convex mould.

5, isostatic tooling according to claim 1 and 2 is characterized in that: described cavity is complete continuous cavity.

6, isostatic tooling according to claim 1 and 2 is characterized in that: described cavity is made up of the loculus of a plurality of parts, is provided with the raceway groove that is used for mutual UNICOM between each loculus.

7, isostatic tooling according to claim 1 and 2 is characterized in that: described upper die and lower die are respectively the monolithic construction that can not be split.

8, isostatic tooling according to claim 1 and 2 is characterized in that: one of described upper die and lower die or both are detachable fabricated structure.