CN211888996U

CN211888996U - Alloy forming core rod for powder metallurgy

Info

Publication number: CN211888996U
Application number: CN201922480106.7U
Authority: CN
Inventors: 陆水飞
Original assignee: Haimen Seiko Powder Metallurgy Co ltd
Current assignee: Haimen Seiko Powder Metallurgy Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-10
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of die manufacturing, in particular to an alloy forming mandrel for powder metallurgy, which comprises a mandrel body and a connecting seat arranged above the mandrel body, wherein the top and the bottom of the connecting seat are respectively provided with a groove and an inner groove, the inner side of the groove is provided with a connecting bolt in a penetrating way, the bottom end of the connecting bolt penetrates through the inner part of the mandrel body and is in threaded connection with the mandrel body, and the surface of the mandrel body is coated with a graphite coating; the utility model discloses a setting of connecting seat, recess, connecting bolt, inside groove, graphite coating, nanometer coating, fluorocarbon coating and inoxidizing coating for this plug possesses convenient assembly, and can effectively improve self life's advantage, it is comparatively inconvenient when the assembly to have solved present plug, hardly demolish the tail end when the rupture condition appears, and its holistic weatherability is relatively poor simultaneously, uses the back for a long time, appears the problem of the condition of scrapping easily, has practiced thrift unnecessary fund cost for enterprise and producer.

Description

Alloy forming core rod for powder metallurgy

Technical Field

The utility model relates to a mould manufacturing technology field specifically is alloy forming core rod for powder metallurgy.

Background

The powder metallurgy forming core rod is a conventional part in a powder metallurgy die, the manufacturing cost accounts for more than 35% of the whole die, the design and manufacturing quality of the powder metallurgy forming core rod directly influences the quality and the cost of a product, therefore, the proper raw materials are reasonably designed and selected, and the establishment of a machining process and an electric machining process is very important.

The product is when shaping and drawing of patterns, and the plug has played very big effect, and nevertheless present plug is comparatively inconvenient when the assembly, hardly demolishs the tail end when the fracture condition appears, and its holistic weatherability is relatively poor simultaneously, uses the back for a long time, appears scrapping the condition easily, proposes a convenient assembly for this reason, and can effectively improve self life's plug and solve this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a powder metallurgy is with alloy plug that takes shape possesses convenient assembly, and can effectively improve self life's advantage, has solved present plug comparatively inconvenient when the assembly, hardly demolishs the tail end when the fracture condition appears, and its holistic weatherability is relatively poor simultaneously, uses the back for a long time, appears the problem of the condition of scrapping easily.

In order to achieve the above object, the utility model provides a following technical scheme: alloy forming mandrel for powder metallurgy, including the mandrel body and set up the connecting seat in its top, recess and inside groove are seted up respectively to the top and the bottom of connecting seat, the inboard through arrangement of recess has connecting bolt, connecting bolt's bottom is run through to the inside of mandrel body and rather than threaded connection, the surface of mandrel body is scribbled and is equipped with the graphite coating, the graphite coating is kept away from one side of mandrel body and is scribbled and be equipped with the nanometer coating, the fluorocarbon coating is kept away from one side of graphite coating and is scribbled and be equipped with the fluorocarbon coating, the fluorocarbon coating is kept away from one side of nanometer coating and is scribbled and be equipped with the.

Preferably, the bottom of the connecting seat and the front side and the rear side of the inner groove are both provided with side grooves, the side grooves are communicated with the inner groove, and the inner side of the inner groove is provided with a limiting column integrally processed with the connecting seat.

Preferably, the top of plug body an organic whole processing has the connection piece, the cooperation is used between connection piece and the side channel, the preformed hole has been seted up on the surface of connection piece, this preformed hole is run through to spacing post, and the distance between the top of spacing post and the inside groove inner wall is greater than the thickness of connection piece.

Preferably, the nanocoating comprises an XR-D coating, an XR-S coating and an XR-I coating, the XR-D coating is positioned on the outer layer of the graphite coating, the XR-S coating is positioned on the outer layer of the XR-D coating, the XR-I coating is positioned on the outer layer of the XR-S coating, the thickness of the XR-D coating is 3-5 μm, and the thickness of the XR-I coating is 2-3 μm.

Preferably, the fluorocarbon coating comprises a primer coating and a fabric coating, the primer coating is located in the inner layer of the fabric coating, the primer coating is coated on the outer surface of the XR-I coating, and the number of the fabric coatings is two.

Preferably, the protective layer comprises an iron oxide coating and a chromium plating layer, the chromium plating layer is positioned on the outer layer, the iron oxide coating is positioned between the fabric coating and the chromium plating layer, the thickness of the iron oxide coating is 0.05mm, and the thickness of the chromium plating layer is 40-70 μm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a setting of connecting seat, recess, connecting bolt, inside groove, graphite coating, nanometer coating, fluorocarbon coating and inoxidizing coating for this plug possesses convenient assembly, and can effectively improve self life's advantage, it is comparatively inconvenient when the assembly to have solved present plug, hardly demolish the tail end when the rupture condition appears, and its holistic weatherability is relatively poor simultaneously, uses the back for a long time, appears the problem of the condition of scrapping easily, has practiced thrift unnecessary fund cost for enterprise and producer.

2. The utility model discloses a side channel and spacing post's setting, they are used for the convenience to assemble the plug body, through the setting of connection piece and preformed hole, they are used for and spacing inter-item coordination between the post, in addition connecting bolt's bolt reaches the fixed mounting to the plug body, makes the plug body can not take place relative rotation after the installation between connection piece and the spacing post, improves its stability.

3. The utility model discloses a setting of graphite coating, its coated is thin and even, and then make the frictional force of plug little, be difficult to the damage, prolong its life, and the cost consumption is lower, through the setting of XR-D coating, this coating has very high anti high temperature nature and corrosion resistance and good toughness, wearability, through the setting of XR-S coating, this coating has high hardness, wear-resisting and self-lubricity, through the setting of XR-I coating, this coating has the characteristics of high hardness, corrosion-resisting and low friction coefficient, through the setting of bed charge coating and surface material coating, make plug body surface coating adhesion reinforce, antiseized, heat-resisting, wear-resisting and lubrication, through the setting of iron oxide coating and chromium plating, make the plug body have very high hardness, can also have good chemical stability simultaneously, both mutually support, the heat resistance of the core rod body can also be effectively increased.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a structural bottom view of the connecting seat of the present invention;

FIG. 3 is a sectional view of the core rod of the present invention;

fig. 4 is a structural cross-sectional view of the nano-coating of the present invention;

fig. 5 is a structural section view of the fluorocarbon coating of the present invention;

fig. 6 is a structural section view of the protective layer of the present invention.

In the figure: 1. a mandrel body; 2. a connecting seat; 3. a groove; 4. a connecting bolt; 5. an inner tank; 6. a graphite coating; 7. a nano-coating; 71. an XR-D coating; 72. an XR-S coating; 73. XR-I coating; 8. a fluorocarbon coating; 81. coating a primer; 82. coating the fabric; 9. a protective layer; 91. an iron oxide coating; 92. a chromium plating layer; 10. a side groove; 11. connecting sheets; 12. a limiting column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, an alloy forming mandrel for powder metallurgy comprises a mandrel body 1 and a connecting seat 2 disposed above the mandrel body, wherein a groove 3 and an inner groove 5 are respectively disposed at the top and the bottom of the connecting seat 2, a connecting bolt 4 is disposed inside the groove 3, the bottom end of the connecting bolt 4 penetrates into the mandrel body 1 and is in threaded connection with the same, a graphite coating 6 is coated on the surface of the mandrel body 1, the graphite coating 6 is thin and uniform, so that the mandrel has small friction and is not easy to damage, the service life of the mandrel is prolonged, the cost consumption is low, a nano coating 7 is coated on one side of the graphite coating 6 away from the mandrel body 1, a fluorocarbon coating 8 is coated on one side of the nano coating 7 away from the graphite coating 6, a protective layer 9 is coated on one side of the fluorocarbon coating 8 away from the nano coating 7, and a connecting seat 2, Recess 3, connecting bolt 4, inside groove 5, graphite coating 6, nanometer coating 7, fluorocarbon coating 8 and inoxidizing coating 9's setting for this plug possesses convenient assembly, and can effectively improve self life's advantage, it is comparatively inconvenient when the assembly to have solved present plug, hardly demolish the tail end when the fracture condition appears, its holistic weatherability is relatively poor simultaneously, after using for a long time, the problem of the condition of scrapping appears easily, unnecessary fund expense has been practiced thrift for enterprise and producer.

In this embodiment, specifically, the bottom of the connecting seat 2 and the front and rear sides of the inner groove 5 are both provided with side grooves 10, the side grooves 10 communicate with the inner groove 5, the inner side of the inner groove 5 is provided with a limiting post 12 integrally processed with the connecting seat 2, and the side grooves 10 and the limiting post 12 are used for facilitating the assembly of the mandrel body 1.

In this embodiment, specifically, a connecting piece 11 is integrally processed at the top of the mandrel body 1, the connecting piece 11 and the side groove 10 are used in cooperation, a preformed hole is formed in the surface of the connecting piece 11, the limiting column 12 penetrates through the preformed hole, and the distance between the top of the limiting column 12 and the inner wall of the inner groove 5 is greater than the thickness of the connecting piece 11, through the arrangement of the connecting piece 11 and the preformed hole, the connecting piece 11 and the limiting column 12 are used for being matched with each other, and the bolt connection of the connecting bolt 4 is added, so that the fixed installation of the mandrel body 1 is achieved, after the connecting piece 11 and the limiting column 12 are installed, the mandrel body 1 cannot rotate relatively, and the stability of the mandrel body.

In this embodiment, specifically, the nano-coating 7 includes an XR-D coating 71, an XR-S coating 72 and an XR-I coating 73, the XR-D coating 71 is disposed on the outer layer of the graphite coating 6, the XR-S coating 72 is disposed on the outer layer of the XR-D coating 71, the XR-I coating 73 is disposed on the outer layer of the XR-S coating 72, the thickness of the XR-D coating 71 is 3 to 5 μm, the thickness of the XR-I coating 73 is 2 to 3 μm, and by disposing the XR-D coating 71, the coating has extremely high temperature resistance, corrosion resistance, good toughness and wear resistance, and through the arrangement of the XR-S coating 72, the coating has high hardness, wear resistance and self-lubricity, and has the characteristics of high hardness, corrosion resistance and low friction coefficient through the arrangement of the XR-I coating 73.

In this embodiment, specifically, the fluorocarbon coating 8 includes a primer coating 81 and a surface coating 82, the primer coating 81 is located in an inner layer of the surface coating 82, the primer coating 81 is coated on an outer surface of the XR-I coating 73, the surface coatings 82 are two in number, and the primer coating 81 and the surface coating 82 are arranged to make a surface coating of the mandrel body 1 have strong adhesion, anti-sticking, heat-resistant, wear-resistant and lubricating properties.

In this embodiment, specifically, the protective layer 9 includes an iron oxide coating 91 and a chromium plating layer 92, the chromium plating layer 92 is located on the outer layer, the iron oxide coating 91 is located between the fabric coating 82 and the chromium plating layer 92, the thickness of the iron oxide coating 91 is 0.05mm, and the thickness of the chromium plating layer 92 is 40-70 μm, and by the arrangement of the iron oxide coating 91 and the chromium plating layer 92, the mandrel body 1 has high hardness and good chemical stability, and the iron oxide coating 91 and the chromium plating layer cooperate with each other, so that the heat resistance of the mandrel body 1 can be effectively increased.

The working principle is as follows: when carrying out the assembly of plug body 1, fill it from the bottom of connecting seat 2, make connection piece 11 fill to the inboard top of inside groove 5, later carry out 90 degrees rotations to plug body 1, make the preformed hole on connection piece 11 surface aim at spacing post 12, pull down again to plug body 1, make spacing post 12 run through this preformed hole, later from top installation connecting bolt 4, make its bottom run through to the inboard of plug body 1, and twist connecting bolt 4, until connecting bolt 4 is installed to the inboard of recess 3, the completion is to the assembly of plug body 1, set up the functional layer on the surface of plug body 1, can effectively improve its holistic weatherability, prolong its self life.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Alloy shaping plug for powder metallurgy includes plug body (1) and sets up connecting seat (2) above it, its characterized in that: the connecting rod is characterized in that the top and the bottom of the connecting seat (2) are respectively provided with a groove (3) and an inner groove (5), the inner side of the groove (3) is provided with a connecting bolt (4) in a penetrating manner, the bottom end of the connecting bolt (4) penetrates through the inner part of the core rod body (1) and is in threaded connection with the core rod body, the surface of the core rod body (1) is coated with a graphite coating (6), one side, away from the core rod body (1), of the graphite coating (6) is coated with a nano coating (7), one side, away from the graphite coating (6), of the nano coating (7) is coated with a fluorocarbon coating (8), and one side, away from the nano coating (7), of the fluorocarbon coating (8) is coated with.

2. The alloy forming mandrel for powder metallurgy according to claim 1, characterized in that: the connecting seat is characterized in that side grooves (10) are formed in the bottom of the connecting seat (2) and located on the front side and the rear side of the inner groove (5), the side grooves (10) are communicated with the inner groove (5), and limiting columns (12) integrally processed with the connecting seat (2) are arranged on the inner side of the inner groove (5).

3. The alloy forming mandrel for powder metallurgy according to claim 2, characterized in that: the top integrated processing of plug body (1) has connection piece (11), the cooperation is used between connection piece (11) and side channel (10), the preformed hole has been seted up on the surface of connection piece (11), this preformed hole is run through to spacing post (12), and the distance between the top of spacing post (12) and inside groove (5) inner wall is greater than the thickness of connection piece (11).

4. The alloy forming mandrel for powder metallurgy according to claim 1, characterized in that: the nanocoating (7) comprises an XR-D coating (71), an XR-S coating (72) and an XR-I coating (73), the XR-D coating (71) being located on an outer layer of the graphite coating (6), the XR-S coating (72) being located on an outer layer of the XR-D coating (71), the XR-I coating (73) being located on an outer layer of the XR-S coating (72), the XR-D coating (71) having a thickness of 3-5 μm, the XR-I coating (73) having a thickness of 2-3 μm.

5. The alloy forming mandrel for powder metallurgy according to claim 4, characterized in that: the fluorocarbon coating (8) comprises a primer coating (81) and a surface coating (82), the primer coating (81) is positioned on the inner layer of the surface coating (82), the primer coating (81) is coated on the outer surface of the XR-I coating (73), and the number of the surface coatings (82) is two.

6. The alloy forming mandrel for powder metallurgy according to claim 5, characterized in that: the protective layer (9) comprises an iron oxide coating (91) and a chromium coating (92), the chromium coating (92) is located on the outer layer, the iron oxide coating (91) is located between the fabric coating (82) and the chromium coating (92), the thickness of the iron oxide coating (91) is 0.05mm, and the thickness of the chromium coating (92) is 40-70 mu m.