CN202639327U - Cemented carbide die - Google Patents
Cemented carbide die Download PDFInfo
- Publication number
- CN202639327U CN202639327U CN 201220335502 CN201220335502U CN202639327U CN 202639327 U CN202639327 U CN 202639327U CN 201220335502 CN201220335502 CN 201220335502 CN 201220335502 U CN201220335502 U CN 201220335502U CN 202639327 U CN202639327 U CN 202639327U
- Authority
- CN
- China
- Prior art keywords
- cemented carbide
- steel substrate
- utility
- model
- steel matrix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The utility model discloses a cemented carbide die which comprises a steel substrate and a cemented carbide punch, wherein the top of the steel substrate is provided with a chamfer so as to form a guide port, the cemented carbide punch is embedded in the steel substrate, the cemented carbide punch is in interference fit with the steel substrate, an annular raised part is arranged in the steel substrate, the cemented carbide punch is pressed against the raised part, and a bulge of the raised part is arc-shaped. According to the utility model, the setting of the guide port facilitates that the cemented carbide punch is embedded in the steel substrate, the raised part can reduce the requirements for the flatness of the bottom surface of the cemented carbide punch, and the steel substrate and the cemented carbide punch are closely jointed through thermal-binding connection, so that the pressing stability is effectively guaranteed, and the pressing accuracy of products is ensured. The cemented carbide die disclosed by the utility model is simple in structure, simple and convenient to manufacture, low in cost and strong in practicability.
Description
Technical field
The utility model relates to sintered-carbide die.
Background technology
In pressing mold, utilize the powder forming method of impressed pressure, claim again stamping of powder to be shaped.Compacting process is comprised of dress powder, compacting and the demoulding.The content of powder pressing comprises powder compaction theory, powder compact, powder compaction device and four aspects of powder compaction forcing press.In the compacting process, the inside and outside friction that exists between particle and between particle and die wall causes that the pressure loss makes each position unbalance stress of pressed compact, so the green density skewness.Inhomogeneous degree is relevant with the pressing mode of selecting.Basic pressing mode has unidirectional compacting, two-way compacting, unsteady compacting, pulling-down type compacting and friction core bar to suppress five kinds.Wherein Bidirectional pressure is made as former and maintains static, and upper and lower stamping pressurizes simultaneously from two ends, claims again simultaneously two-way compacting.If first unidirectional pressurization, and then carry out once reverse unidirectional compacting in density than low side, then be called the two-way compacting of non-while, to press after claiming again, this mode can realize two-way compacting at the forcing press of unidirectional pressurization.During two-way compacting, if two equate that to pressure then low-density layer is positioned at the pressed compact middle part; Otherwise low-density layer moves to low-pressure end.The green density of two-way compacting distribute more unidirectional compacting evenly, density contrast reduces, and is applicable to the part of H/D 〉=2 or H/T≤6.
The utility model content
The purpose of this utility model is to provide a kind of stability height, high sintered-carbide die of product compacting precision suppressed.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
Sintered-carbide die, comprise steel matrix and hard alloy punch head, it is characterized in that: the top of steel matrix is provided with chamfering and forms targeting port, hard alloy punch head is embedded in the steel matrix, hard alloy punch head and steel matrix are interference fit, be provided with annular relief in the steel matrix, hard alloy punch head props up lug boss.
Further, lug boss is protruding curved.
The utility model has following beneficial effect owing to adopted technique scheme:
Targeting port is set to be convenient in the hard alloy punch head embedding steel matrix, lug boss can reduce the flatness requirement to the hard alloy punch head bottom surface, by the connection of heat edge steel matrix and hard alloy punch head are fitted tightly, effectively guarantee compacting stability, the compacting precision of assurance product.The utility model is simple in structure, manufacturing is easy, cost is low, and is practical.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the utility model sintered-carbide die;
Fig. 2 is the structural representation of steel matrix in the utility model.
The specific embodiment
As depicted in figs. 1 and 2, be the utility model sintered-carbide die, comprise steel matrix 1 and hard alloy punch head 2, the top of steel matrix 1 is provided with chamfering and forms targeting port 3, targeting port 3 is convenient to hard alloy punch head 2 and is embedded in the steel matrix 1, hard alloy punch head 2 is embedded in the steel matrix 1, hard alloy punch head 2 and steel matrix 1 are interference fit, be provided with annular relief 4 in the steel matrix 1, hard alloy punch head 2 props up lug boss 4, lug boss 4 protruding curved, lug boss 4 can reduce the flatness requirement to hard alloy punch head 2 bottom surfaces.By the connection of heat edge steel matrix 1 and hard alloy punch head 2 are fitted tightly, effectively guarantee compacting stability, the compacting precision of assurance product.
Only be specific embodiment of the utility model below, but technical characterictic of the present utility model is not limited to this.Any take the utility model as the basis, for realizing essentially identical technique effect, done the ground simple change, be equal to replacement or modification etc., all be covered by among the protection domain of the present utility model.
Claims (2)
1. sintered-carbide die, comprise steel matrix (1) and hard alloy punch head (2), it is characterized in that: the top of described steel matrix (1) is provided with chamfering and forms targeting port (3), described hard alloy punch head (2) is embedded in the described steel matrix (1), described hard alloy punch head (2) and described steel matrix (1) are interference fit, be provided with annular relief (4) in the described steel matrix (1), described hard alloy punch head (2) props up described lug boss (4).
2. sintered-carbide die according to claim 1 is characterized in that: described lug boss (4) protruding curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335502 CN202639327U (en) | 2012-07-11 | 2012-07-11 | Cemented carbide die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335502 CN202639327U (en) | 2012-07-11 | 2012-07-11 | Cemented carbide die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202639327U true CN202639327U (en) | 2013-01-02 |
Family
ID=47408505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220335502 Expired - Fee Related CN202639327U (en) | 2012-07-11 | 2012-07-11 | Cemented carbide die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202639327U (en) |
-
2012
- 2012-07-11 CN CN 201220335502 patent/CN202639327U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202639327U (en) | Cemented carbide die | |
| CN204338856U (en) | A kind of compression molding die of pulverulent product layering | |
| CN207170624U (en) | A kind of clip band blanking die | |
| CN203505465U (en) | Press device for brick tea | |
| CN202877347U (en) | Bending die of plate fixing seat | |
| CN206748693U (en) | A kind of crucible isostatic pressing mold | |
| CN202427950U (en) | Cold press mould | |
| CN202343944U (en) | Graphite core for sintering hard alloy | |
| CN204640871U (en) | A kind of automatic tableting press | |
| CN104550440A (en) | Thickened product molding method | |
| CN204247957U (en) | Produce the powder metallurgy pressing mould of block of obturaging | |
| CN203992005U (en) | A kind of driven wheel internal spline external tooth mould | |
| CN203304557U (en) | Die for pressing molybdenum slab | |
| CN202137888U (en) | Forming mould for vibration isolation support | |
| CN205254104U (en) | Adopt moulding -die frock of synchronous two -direction pressing | |
| CN105415743B (en) | Shaping mechanism for powder metallurgy spacer products | |
| CN103878254A (en) | Semi-circular ring riveting forming mechanism | |
| CN204308060U (en) | A kind of novel oil pressure mould | |
| CN205219818U (en) | Many mouthfuls of individual layers sticis tea tamp | |
| CN204976970U (en) | Totally enclosed large capacity hydraulic oil isostatic pressing ceramic tile mould | |
| CN203330400U (en) | Pressing device for metal powder | |
| CN201956335U (en) | Semiconductor chip template structure | |
| CN203565569U (en) | Mold for machining top plate of rudder ball | |
| CN203610475U (en) | Anti-deformation negative clearance elastic fine blanking die | |
| CN202185545U (en) | Die for manufacturing screws with flat gaskets and elastic gaskets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20140711 |
|
| EXPY | Termination of patent right or utility model |