CN203156050U

CN203156050U - Hot-pressing die used for manufacturing aluminum-iron alloy shaped charge liner

Info

Publication number: CN203156050U
Application number: CN2012206828905U
Authority: CN
Inventors: 田文怀; 纪箴; 汲广桥
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2012-12-12
Filing date: 2012-12-12
Publication date: 2013-08-28
Anticipated expiration: 2022-12-12

Abstract

The utility model relates to a hot-pressing die used for manufacturing an aluminum-iron alloy shaped charge liner. The die comprises a spherical convex die (1), spherical concave dies (2), trays (3), a powder-loading cap (4), outer sleeves (5) and height-limiting plates (6). During the use, the spherical convex die (1) and the trays (3) are assembled together, then the spherical convex die (1) and the trays (3) are pressed into proper positions from the two ends of the outer sleeves together with the spherical concave dies (2) inserted into the height-limiting plates (6) respectively; required metal powder is loaded into the powder-loading cap (4) through a powder filling hole (7) of the spherical concave dies (2); and then the powder-loading cap (4) and the spherical concave dies (2) are assembled together. The hot-pressing die has the advantages of ingenious design, compact and simple structure, convenience in assembly and demolding, high efficiency and the like, and can manufacture shaped charge liners which meet the requirements for certain overall dimensions and performance.

Description

A kind of hot pressing die for the preparation of the alfer cavity liner

Technical field

The invention belongs to the mould applications that processing powder end cavity liner is used, provide a kind of for the hot pressing die that accurately prepares the alfer cavity liner.

Background technology

Cavity liner is the important meals parts in the hollow charge blast warhead.After the explosive initiation in the warhead, cavity liner formation jet or the various plate armours of bullet penetration, fortification target.Therefore, the performance of the metal material of the shape of cavity liner and formation cavity liner directly influences the penetration effect.

The manufacture method of cavity liner has a lot, and traditional cavity liner manufacture method mainly contains both at home and abroad: turning shaping, drawing, mould pressing, forging and molding etc.In recent years, both at home and abroad for satisfying its internal performance requirement of cavity liner, develop new technology and the new technology of some cavity liner preparations in succession, mainly contain: electroforming process, cold extruding formation process, pendulum grind forming technology etc.Powder metallurgic method prepares the focus that cavity liner also is Recent study.If method is proper, adopt powder metallurgy process can produce the product of near-net-shape, thereby reduce consumption of raw materials, reduce cost, this especially has bigger practical significance for the manufacturing of somewhat expensive heavy metal material part.

A kind of hot pressing die for the preparation of the alfer cavity liner of the present utility model, can prepare the powder metallurgy cavity liner of near-net-shape, thereby reduce consumption of raw materials, reduce cost, adopt this mould to prepare cavity liner simultaneously and have advantage simple to operate, time saving and energy saving.

Summary of the invention

It all is to prepare block materials or the approximate blank of size earlier mostly that powder metallurgy process prepares cavity liner, is refined to required size then.For can preparing the powder cavity liner of near-net-shape, reduce consumption of raw materials, reduce cost the mould that the utility model provides and a kind ofly makes easy to process, simple in structure, easy accessibility, can reuse, cost is low.

For achieving the above object, the utility model provides a kind of hot pressing die for the preparation of the alfer cavity liner, it is made up of sphere punch, sphere die, pallet, dress powder cap, overcoat and height limiting plate, described sphere punch and pallet are bolted together, be pressed into to correct position from the overcoat two ends respectively with the sphere die that inserts height limiting plate, described dress powder cap and sphere die are bolted together; Height limiting plate is mainly used in the sphere die is pressed into the location of the overcoat degree of depth.

Described sphere punch is to process with 4Cr14MoV or other mould steel, and sphere is polished down to R0.8(R after heat treatment: roughness), remaining surface is R1.6 (R: roughness); Sphere punch and pallet are bolted together.

Described sphere die is to process with 4Cr14MoV or other mould steel, have stepped dress powder hole above and be used for packing into required metal dust, the side has annular limit for height board slot, concave spherical surface and side are polished down to R0.8(R after heat treatment: roughness), remaining surface is R1.6 (R: roughness); Sphere die and dress powder cap, height limiting plate are bolted together.

Described pallet is to process with 4Cr14MoV or other mould steel, and pallet lateral surface, bore area and upper surface are polished down to R0.8(R after heat treatment: roughness), remaining surface is R1.6 (R: roughness); Pallet and sphere punch are bolted together.

Described dress powder cap is to process with 4Cr14MoV or other mould steel, and dress powder cap and sphere die are bolted together.

Described overcoat is to process with 4Cr14MoV or other mould steel, and inner surface is polished down to R0.8 after heat treatment (R: roughness), remaining surface is R1.6 (R: roughness); Sphere punch and pallet that described assembly unit is good are not pressed into wherein from two ends clearly with the sphere die.

Described height limiting plate is to process with T45 or other quenched and tempered steel, and a side has the through hole that makes things convenient for gripping, and surface roughness is R1.6(R: roughness); Described height limiting plate inserts in the annular limit for height board slot of sphere die side, is pressed into the degree of depth of overcoat in order to control, adjusting sphere die.

A kind of hot pressing die for the preparation of the alfer cavity liner of the present utility model, its outstanding advantage are to prepare the powder metallurgy cavity liner of near-net-shape, reduce consumption of raw materials, reduce cost.The present utility model design is ingenious, makes easy to process, compact conformation simply, assembling, demoulding make things convenient for, can reuse, efficient height, cost are low.

Description of drawings

Fig. 1 is the hot pressing die schematic diagram;

Fig. 2 is sphere punch schematic diagram in the hot pressing die;

Fig. 3 is sphere die schematic diagram in the hot pressing die;

Fig. 4 is pallet schematic diagram in the hot pressing die;

Fig. 5 is dress powder cap schematic diagram in the hot pressing die;

Fig. 6 is overcoat schematic diagram in the hot pressing die;

Fig. 7 is height limiting plate vertical view in the hot pressing die;

Wherein,

1. sphere punch	5. overcoat
		2. sphere die	6. height limiting plate
3. pallet	7. adorn the powder hole
		4. adorn the powder cap	8. limit for height board slot

The specific embodiment

A kind of hot pressing die for the preparation of the alfer cavity liner is as shown in Figure 1, by sphere punch 1(Fig. 2), sphere die 2 (Fig. 3), pallet 3(Fig. 4), dress powder cap 4(Fig. 5), overcoat 5(Fig. 6) and height limiting plate 6(Fig. 7) form.

Except height limiting plate 6 uses T45 or other quenched and tempered steel, remainder all with 4Cr14MioV or other mould steel, is polished down to R0.8(R after the heat treatment: roughness), remaining surface is R1.6 (R: roughness).

Fig. 1 is the hot pressing die schematic diagram, as shown in the figure: a kind of hot pressing die for the preparation of the alfer cavity liner, described sphere punch 1 and pallet 3 are bolted together, be pressed into to correct position from overcoat 5 two ends respectively with the sphere die 2 of described insertion height limiting plate 6, described dress powder cap 4 and sphere die 2 are bolted together and form described hot pressing die for the preparation of the alfer cavity liner.

Fig. 2 is sphere punch schematic diagram in the hot pressing die; Described sphere punch 1 is bolted together with pallet 3 in use as shown in the figure.Fig. 4 is pallet schematic diagram in the hot pressing die; As shown in the figure: described pallet 3 and sphere punch 1 are bolted together.

Fig. 3 is sphere die schematic diagram in the hot pressing die; As shown in the figure: have stepped dress powder hole 7 above the described sphere die 2 and be used for packing into required metal dust, the side has annular limit for height board slot 8, and concave spherical surface and side are polished down to R0.8 after heat treatment, and remaining surface is R1.6; The sphere die is bolted together with dress powder cap 4, height limiting plate 6 in use.Fig. 5 is dress powder cap schematic diagram in the hot pressing die; As shown in the figure: described dress powder cap 4 is to be bolted together with sphere die 2.

Fig. 6 is overcoat schematic diagram in the hot pressing die; As shown in the figure: described overcoat 5 sphere punch (1) and pallet (3) that assembly unit is good when using is not pressed into wherein from two ends clearly with sphere die (2).

Fig. 7 is height limiting plate vertical view in the hot pressing die; As shown in the figure: described height limiting plate 6 one sides have the through hole that makes things convenient for gripping, and surface roughness is R1.6; Height limiting plate 6 is inserted in the annular limit for height board slot 8 of sphere die 2 sides, is pressed into the degree of depth of overcoat 5 in order to control, adjusting sphere die.

In use sphere punch 1 and pallet 3 are bolted together, are pressed into to correct position from overcoat 5 two ends respectively together with sphere die 2 afterwards; Height limiting plate 6 is inserted in the annular limit for height board slot 8 (Fig. 3) of sphere dies 2 sides, pad is placed between height limiting plate 6 and the overcoat 5 degree of depth that is pressed into overcoat 5 with fixing sphere die 2; After required metal dust pack into from the dress powder hole 7 (Fig. 3) of sphere die 2, will adorn powder cap 4 and sphere die 2 is bolted together; Take out pad, be prepared the sintering operation of powder cavity liner.

Can be pressed into the degree of depth of overcoat 5 by the quantity regulating sphere die 2 that increases or reduce pad.

Claims

1. hot pressing die for the preparation of the alfer cavity liner, it is made up of sphere punch (1), sphere die (2), pallet (3), dress powder cap (4), overcoat (5) and height limiting plate (6), it is characterized in that: described sphere punch (1) and pallet (3) are bolted together, be pressed into to correct position from overcoat (5) two ends respectively with the sphere die (2) of described insertion height limiting plate (6), described dress powder cap (4) and sphere die (2) are bolted together and form described hot pressing die for the preparation of the alfer cavity liner.

2. the hot pressing die for the preparation of the alfer cavity liner according to claim 1, it is characterized in that: described sphere punch (1) is to process with 4Cr14MoV or other mould steel, sphere is polished down to roughness R0.8 after heat treatment, remaining surface is R1.6; Sphere punch (1) and pallet (3) are bolted together.

3. according to the described hot pressing die for the preparation of the alfer cavity liner of claim 1, it is characterized in that: described sphere die (2) is to process with 4Cr14MoV or other mould steel, have stepped dress powder hole (7) above and be used for packing into required metal dust, the side has annular limit for height board slot (8), concave spherical surface and side are polished down to R0.8 after heat treatment, remaining surface is R1.6; Sphere die (2) and dress powder cap (4), height limiting plate (6) are bolted together.

4. according to the described hot pressing die for the preparation of the alfer cavity liner of claim 1, it is characterized in that: described pallet (3) is to process with 4Cr14MoV or other mould steel, pallet lateral surface, bore area and upper surface are polished down to R0.8 after heat treatment, remaining surface is R1.6; Pallet (3) and sphere punch (1) are bolted together.

5. the hot pressing die for the preparation of the alfer cavity liner according to claim 1, it is characterized in that: described dress powder cap (4) is to process with 4Cr14MoV or other mould steel, dress powder cap (4) and sphere die (2) are bolted together.

6. according to the described hot pressing die for the preparation of the alfer cavity liner of claim 1, it is characterized in that: described overcoat (5) is to process with 4Cr14MoV or other mould steel, inner surface is polished down to R0.8 after heat treatment, remaining surface is R1.6; The sphere punch (1) that described assembly unit is good and pallet (3) are pressed into wherein from two ends respectively with sphere die (2).

7. the hot pressing die for the preparation of the alfer cavity liner according to claim 1, it is characterized in that: described height limiting plate (6) is to process with T45 or other quenched and tempered steel, and a side has the through hole that makes things convenient for gripping, and surface roughness is R1.6; Height limiting plate (6) is inserted in the annular limit for height board slot (8) of sphere die (2) side, is pressed into the degree of depth of overcoat (5) in order to control, adjusting sphere die.