CN1054732A - Utilize the method and the equipment of realizing this method of the spherical particle processing metal fiber of metal dust - Google Patents
Utilize the method and the equipment of realizing this method of the spherical particle processing metal fiber of metal dust Download PDFInfo
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- CN1054732A CN1054732A CN90101342A CN90101342A CN1054732A CN 1054732 A CN1054732 A CN 1054732A CN 90101342 A CN90101342 A CN 90101342A CN 90101342 A CN90101342 A CN 90101342A CN 1054732 A CN1054732 A CN 1054732A
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- equipment
- utensil
- spherical particle
- metal dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/062—Fibrous particles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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- Powder Metallurgy (AREA)
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Abstract
The method with the spherical particle making metallic fiber of metal dust that the equipment that utilizes the spherical particle of metal dust to make metallic fiber is realized is such, between main rolling surface (4) that is out of shape utensil (1) and secondary rolling surface (9), send into the spherical particle of metal dust, the bus of this main rolling surface is a curve, and has the positive camber radius.Utilization stretches, reverses and at least flecition makes spherical particle be out of shape simultaneously.Then cylindrical fiber is unloaded.
Description
This invention belongs to the scope of powder metallurgy, and more accurate theory belongs to the equipment that is processed into the method and this method of realization of metallic fiber with the spherical particle of metal dust.
This invention can successfully be used for making filter, the catalyst of liquids and gases, the porous capillary structure of heat distribution pipeline, the damper of mechanical oscillation, the muffler of acoustical vibration, and other goods.
PM technique now constantly improves the Products Quality requirement of making for of powder, and said quality requirement has mechanical strength, filtering feature, the wicking property of goods, the surface coefficient value of porous article.
Therefore, adopt metallic fiber to replace metal dust that good prospect is arranged.But the modern crafts of making metallic fiber will consume a lot of materials.This problem can utilize the distortion of particle to solve when the spherical particle with metal dust is processed into metallic fiber.Utilize the spherical particle of metal dust to be processed into the existing method of metallic fiber, can not guarantee fiber is prolonged significantly, thereby can not make full use of the superiority of this method.
Known a kind of spherical particle that utilizes metal dust is processed into the method (FR of metallic fiber, B, 2512707), the realization of this method will be by following approach: the spherical particle of sending into metal dust, spherical particle moving towards when mobile along technological process, utilize stretching action to make its distortion and formation cylindrical fiber, formed cylindrical fiber is reversed, then this cylindrical fiber is unloaded.
Know that also a kind of spherical particle with metal dust is processed into the equipment (FR of metallic fiber, B, 2512707), this equipment has realized that the spherical particle with metal dust is processed into the method for metallic fiber, and distortion utensil and the device that orders about rotation are housed, and the distortion utensil contains main rolling surface and secondary rolling surface, and two rolling surfaces relatively are installed with, and spherical particle that can the roll extrusion metal dust between them, and the device that orders about rotation is connected with the distortion utensil with mechanical means.
But, make at needs under the situation of metallic fiber with bigger prolongation value, utilize the equipment of this method and this method of realization, in the process that forms metallic fiber, require to increase tensile force and twisting resistance, may cause damaging the shape of metallic fiber like this, reduce the mechanical property of metallic fiber, and destroy its integrality.
The basic task of this invention is to formulate the method that a kind of spherical particle that utilizes metal dust is processed into metallic fiber, and develop the equipment that a kind of spherical particle that utilizes metal dust is processed into metallic fiber, contain major-minor two rolling surfaces at this equipment internal strain utensil, this method will increase such operation, and two rolling surfaces will be made like this, make it possible to the metallic fiber that will form is done in order to additional force, and do not damage the shape of metallic fiber, do not reduce its mechanical property and do not destroy its integrality.
This task can be finished like this, the method that is processed into metallic fiber with the spherical particle of metal dust will be by following approach: the spherical particle of sending into metal dust, spherical particle moving towards when mobile along technological process, utilize stretching action to make its distortion, and formation cylindrical fiber, formed cylindrical fiber is reversed, then this cylindrical fiber is unloaded, according to this invention, in this method, when stretching with twisting action, to carry out transverse curvature at least one time to each cylindrical fiber to the cylindrical fiber that will form.
This task also can reach like this, the equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, this equipment includes distortion utensil and the device that orders about rotation that is connected with the distortion utensil with mechanical means, according to this invention, in this equipment, the bus of distortion utensil master rolling surface is a curve, and has the positive camber radius.
The equipment that is made into metallic fiber with the spherical particle of metal dust realizes being made into from the spherical particle of metal dust the method for metallic fiber, and in this equipment, making the bus of the secondary rolling surface of distortion utensil is that curve is suitable.
The equipment that is made into metallic fiber with the spherical particle of metal dust realizes being made into from the spherical particle of metal dust the method for metallic fiber, and in this equipment, it is desirable making the bent bus of the secondary rolling surface of distortion utensil have the negative cruvature radius.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, in the distortion utensil that existing usefulness roller and disk are formed on this equipment, roller surfaces is made become convex, and to be used as main rolling surface be rational.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, in this equipment, making the distortion utensil, also to contain the rubber sheet gasket that is fixed on the disc surfaces in addition be important, and above-mentioned disc surfaces will be settled facing to the convex surface of roller.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, in this equipment, making the distortion utensil, also to contain the metallic elastic pad that is fixed on the rubber sheet gasket in addition also be suitable, And and be used as secondary rolling surface facing to the surface of the metallic elastic pad of roller nonreentrant surface.
The equipment that utilizes the spherical particle of metal dust to make metallic fiber realizes making from the spherical particle of metal dust the method for metallic fiber, and in this equipment, it also is desirable making the metallic elastic pad of distortion utensil be made into corrugated.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, in this equipment, it also is rational making the surface reproduction of being out of shape the utensil rubber sheet gasket be out of shape the shape that has corrugated metallic elastic pad on the utensil.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, in the distortion utensil that two rollers of existing usefulness are formed on this equipment, a surface of roller is made as convex, and another is a spill, and also is important as main rolling surface and secondary rolling surface respectively with these two surfaces.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, in this equipment, it also is favourable making a roller of distortion utensil be made as hollow, and the concave curved surface on the roller is its inner surface, and this roller surrounds the convex surface of another roller of distortion utensil with its concave inside surface.
The equipment that utilizes the spherical particle of metal dust to be made into metallic fiber realizes being made into from the spherical particle of metal dust the method for metallic fiber, and in this equipment, make the distortion utensil two rollers longitudinal axis for staggered be more suitable.
This invention can realize the elongation effect greater than fiber layer thickness 1/2nd when each crooked, and when carrying out subsequently crooked, and the stack that can realize extending increment so just can increase the elongation of resulting metallic fiber.
With concrete explanation and the accompanying drawing of implementing this invention example this invention is explained below, in these accompanying drawings:
Fig. 1, according to this invention, expression utilizes the spherical particle of metal dust to be processed into the kinematic sketch that equipment had of metallic fiber, and this equipment realizes making of the spherical particle of metal dust the method for metallic fiber, and this sketch is a partial longitudinal section;
Fig. 2 represents along the view of Fig. 1 upward arrow A direction;
Fig. 3, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, this equipment realizes making of the spherical particle of metal dust the method for metallic fiber, And on this kinematic sketch such as Fig. 1 is equipped with corrugated metallic gasket, and this sketch is a partial longitudinal section;
Fig. 4 represents along the view of Fig. 3 upward arrow B direction;
Fig. 5, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, and this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, contains two tapered rollers on this kinematic sketch;
Fig. 6, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, the longitudinal axis of De ， And and two tapered rollers intersects on this kinematic sketch such as Fig. 5;
Fig. 7, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, and this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, and this kinematic sketch includes two cylindricality rollers;
Fig. 8, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, this kinematic sketch is similar to De ， And on Fig. 7 and contains two rollers that longitudinal axis intersects;
Fig. 9, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, this kinematic sketch is similar on Fig. 7; And contains a hollow roller, and this hollow roller surrounds another roller;
Figure 10, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, this kinematic sketch is similar on Fig. 9; And contains staggered rectangular two rollers of longitudinal axis, and this sketch is a partial longitudinal section;
Figure 11 represents along the view of Figure 10 upward arrow C direction;
Figure 12, according to this invention, expression utilizes the spherical particle of metal dust to make the kinematic sketch that equipment had of metallic fiber, this equipment realizes being processed into the spherical particle of metal dust the method for metallic fiber, this kinematic sketch is similar on Fig. 9; And and contain staggered acutangulate two rollers of longitudinal axis, and this sketch is a partial longitudinal section;
Figure 13 represents along the section of X III on Figure 11-X III line direction.
The method of utilizing the spherical particle of metal dust to make metallic fiber is such, sends into the spherical particle of metal dust, when spherical particle along technological process move towards by means of stretching action it is out of shape, to form cylindrical fiber when mobile.Then formed cylindrical fiber is applied with twisting action.With stretch and twisting action the time, at least each cylindrical fiber implemented a transverse curvature, then cylindrical fiber is unloaded down.
Utilize the equipment of the spherical particle making metallic fiber of metal dust to realize that the spherical particle with metal dust is processed into the method for metallic fiber, this equipment includes known distortion utensil 1(Fig. 1), this utensil is formed with roller 2 and disk 3, both are placed to such an extent that face toward mutually, and can be between them the spherical particle of roll extrusion metal dust.Utilization has surperficial 4(Fig. 1,2 of the bent bus formation roller 2 of positive camber radius), and surface 4 is main rolling surfaces 4 of distortion utensil 1.On the surface of the disk of settling facing to the nonreentrant surface 4 of roller 23, lay rubber sheet gasket 5(Fig. 1), and on pad 5, put metallic elastic pad 6 is arranged.In the moment that forms metallic fiber 8, the elasticity of metallic gasket 6 will cause a secondary surface 9(Fig. 1 on the surface 7 of pad 6), this secondary surface has the bent bus of negative cruvature radius.The axis 10 of disk 3 is connected with drive unit 12 with the axis of roller 2 11 usefulness mechanical means.
According to another embodiment, utilize the spherical particle of metal dust to make the spherical particle making metallic fiber of the equipment realization of metallic fiber with metal dust, in this equipment, metallic elastic pad 13(Fig. 3,4) be made into corrugatedly, and rubber sheet gasket 5 will reappear the profile of pad 13.The others that are configured in of this equipment are similar to above-mentioned scheme.
Also can be according to a kind of embodiment, utilize the spherical particle of metal dust to make the method for the equipment realization of metallic fiber with the spherical particle making metallic fiber of metal dust, this equipment includes two tapered rollers 14,15(Fig. 5), be parallel each other corresponding to the longitudinal axis 16,17 of two rollers.The bent bus (convex curve) that surface 18 usefulness of tapered rollers 14 have the positive camber radius forms, and should surface 18 be main rolling surfaces 18 of distortion utensil 1.The surface 19 of conical roller 15 is formed by the bent bus (sag vertical curve) with negative cruvature radius, and should surface 19 be secondary rolling surfaces of distortion utensil 1.Axis 16,17 usefulness mechanical means corresponding to two rollers 14,15 are connected with drive unit 20.
Can also be according to another embodiment, utilize the spherical particle of metal dust to make the method for the equipment realization of metallic fiber with the spherical particle making metallic fiber of metal dust, remove axis 16,17(Fig. 6 corresponding to two rollers 14,15) each other group at an angle outside, the structure of the equipment of the structure of this equipment shown on Fig. 5.
In addition can also be according to a kind of embodiment, utilize the spherical particle of metal dust to make the method for the equipment realization of metallic fiber with the spherical particle making metallic fiber of metal dust, this equipment includes two cylindricality rollers 21,22(Fig. 7), two corresponding surfaces 23,24 of roller are formed by the bent bus that just has (convex curve) radius of curvature and negative (sag vertical curve) radius of curvature respectively.The structure that is configured in the equipment of others shown on Fig. 5 of this equipment.
Also can be again according to another embodiment, make the equipment of metallic fiber of the spherical particle of metal dust and realize the method that the spherical particle of usefulness metal dust is made metallic fiber, the structure of this equipment is removed corresponding to the axis 16 of two rollers 21,22,17(Fig. 8) mutually group in an angle outside, homogeneous phase is similar to the structure of the sort of equipment of implementing by Fig. 7.
Also can make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment contains two cylindricality rollers 25,26(Fig. 9 of the method for the spherical particle making metallic fiber of metal dust) again according to another embodiment.Roller 25 is made into hollow, and its inner surface 27 is formed by the bent bus (sag vertical curve) with negative cruvature radius, and is the secondary rolling surface 27 of distortion utensil 1.Roller 26 is positioned at the inside of roller 25, and its surface 28 is formed by the bent bus (convex curve) with positive camber radius, and is the main rolling surface 28 of distortion utensil 1.Axis 29,30 corresponding to two rollers 25,26 is offset a distance each other, and this distance is determined by the diameter of the fiber 8 that will form.Axis 29,30 usefulness mechanical means corresponding to two rollers 25,26 are connected with drive unit 31.
According to second from the bottom kind of embodiment, make the equipment of metallic fiber of the spherical particle of metal dust and realize the method that the spherical particle of usefulness metal dust is made metallic fiber, the structure of this equipment is removed corresponding to two rollers 25,26(Figure 10,11) axis 29,30(Figure 10) be staggered into beyond the right angle, homogeneous phase is similar to the structure of the sort of equipment of implementing by Fig. 9.
According to last a kind of embodiment, make the equipment of metallic fiber of the spherical particle of metal dust and realize the method that the spherical particle of usefulness metal dust is made metallic fiber, the structure of this equipment is removed corresponding to two rollers 25,26(Figure 12,13) two axial lines 29,30(Figure 12) be staggered into beyond the acute angle, homogeneous phase is similar to the structure of the sort of equipment of implementing according to Fig. 9.
According to Fig. 1 and Fig. 2, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment carries out work by following mode with the method for the spherical particle making metallic fiber of metal dust.
Start the device 12 that orders about rotation, roller 2 and disk 3 transmission gyration like this to distortion utensil 1 make the nonreentrant surface 4 of roller 2 move against the turning to of surface 7 of metallic elastic pad 6.When forming metallic fiber 8, the spherical particle of metal dust is sent into the convex surface 4 and the gap between the concave curved surface 9 that will form on the surface 7 of pad 6 of roller 2.The inhomogeneities of the peripheral speed of the fiber 8 that roll extrusion will form can produce the distortion action to fiber 8 when carrying out stretching action.By convex surface 4 and concave curved surface 9 formed shaped form gaps, also can cause the transverse curvature of fiber 8 extraly, promptly on the fiber 8 that will form, increase a kind of additional force, this additional force can increase the elongation of fiber 8, and do not damage its profile, do not reduce its mechanical property, and do not destroy its integrality.
According to Fig. 3,4, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment carries out work according to the mode similar in appearance to the said equipment with the method for the spherical particle making metallic fiber of metal dust.Ripple on the metallic elastic pad 13 will cause the repeatedly crooked of fiber 8.Can cause increasing more the elongation of fiber 8 like this.
According to Fig. 5, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment carries out work by following mode with the method for the spherical particle making metallic fiber of metal dust.
Start drive unit 20, transmit gyration like this, make the nonreentrant surface 18 of roller 14 move against roller 15 turning to of concave curved surface 19 to the tapered rollers 14 and 15 of distortion utensil 1.The spherical particle of metal dust is sent into the gap between the concave curved surface 19 of the convex surface 18 of roller 14 and roller 15.In others, this equipment will be worked like that according to the equipment on Fig. 1 and 2.
According to Fig. 6, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment is by carrying out work similar in appearance to above-mentioned mode with the method for the spherical particle making metallic fiber of metal dust.Roller 14 and 15 longitudinal axis 16 and 17 intersect are with the difference of the peripheral speed of increased fiber 8 ends.Can cause like this and reverse fiber 8 more, thereby can improve fiber quality.
According to Fig. 7, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment is worked like that according to the equipment on Fig. 5 with the method for the spherical particle making metallic fiber of metal dust.On cylindricality roller 14 and 15, produce convex surface 18 and concave curved surface 19, can under the situation that does not change radius of curvature, increase the length of these rollers, thereby can process the spherical particle of greater number simultaneously, promptly can improve the productivity ratio of equipment.
According to Fig. 8, make the equipment of metallic fiber of the spherical particle of metal dust and realize the method that the spherical particle of usefulness metal dust is made metallic fiber, this equipment is worked like that according to the equipment on Fig. 6, and in addition, this equipment also has the advantage of apparatus shown on Fig. 6 and Fig. 7.
According to Fig. 9, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment is worked like that according to the equipment that is similar on Fig. 7 with the method for the spherical particle making metallic fiber of metal dust.Roller 26 is placed in the inside of roller 25, can increase the length of fiber 8 processing districts like this, thereby increases fiber 8 in the time of staying of processing district, elongation that therefore can increased fiber.
According to Figure 10 and 11, make the equipment of metallic fiber of the spherical particle of metal dust and realize that this equipment is worked like that according to the equipment on Fig. 9 with the method for the spherical particle making metallic fiber of metal dust.Arrange roller 25 and 26 to such an extent that make its corresponding two axis 29 and 30 be staggered into the right angle, can realize like this, thereby can increase the elongation of fiber 8 more by the caused tangential deformation of the rotation of roller 26 along fiber 8 longitudinal axis.
According to Figure 12 and 13, the equipment of making metallic fiber with the spherical particle of metal dust realizes making of the spherical particle of metal dust the method for metallic fiber, and this equipment is according to being similar to Figure 10 and 11 the above modes are carried out work.Arrange roller 25 and 26 to such an extent that make its corresponding axis 29 and 30 be staggered into acute angle, remove like this along the longitudinal axis of fiber 8 and realize to increase the time that fiber 8 is stayed the processing district, thereby can increasing the elongation of fiber degree more outside the tangential deformation.
This invention allows to have under the situation of bigger elongation at fiber, produces thinner metallic fiber.
Claims (12)
1, realizes that by following approach the spherical particle with metal dust is processed into the method for metallic fiber; Send into the spherical particle of metal dust, when spherical particle moving towards when mobile along technological process, utilize stretching action that these particles are out of shape, to form cylindrical fiber (8) And the cylindrical fiber (8) that will form is reversed, then cylindrical fiber (8) is unloaded, the characteristics of this method are, when stretching with twisting action, make each cylindrical fiber (8) will implement transverse curvature at least one time to the cylindrical fiber (8) that will form.
2, this equipment will be realized the method for the making metallic fiber in the claim 1, and contain the device (12 that is out of shape utensil (1) and orders about rotation, 20,31), distortion utensil (1) comprises main rolling surface (4,18,28) and secondary rolling surface (9,19,27), two rolling surfaces are arranged to such an extent that face toward mutually, and can be between them the spherical particle of roll extrusion metal dust, and order about the device (12 of rotation, 20,31) be connected with distortion utensil (1) with mechanical means, the characteristics of this equipment are, the main rolling surface (4 of distortion utensil (1), 18,28) bus is a curve, and has the positive camber radius.
3, according to claim 2, the characteristics of this equipment are that the bus of the secondary rolling surface (9,19,27) of distortion utensil (1) is a curve.
4, according to claim 3, the characteristics of this equipment are that the bent bus of the secondary rolling surface (9,19,27) of distortion utensil (1) has the negative cruvature radius.
5, according to claim 2, the characteristics of this equipment are, in the known distortion utensil (1) with roller (2) and disk (3) composition, the surface (4) of roller (2) is made into convex, and is used as main rolling surface (4).
6, according to claim 5, the characteristics of this equipment are, distortion utensil (1) wherein also contains the lip-deep rubber sheet gasket (5) that is fixed on disk (3) in addition, and the surface of disk (3) will be arranged facing to the nonreentrant surface (4) of roller (2).
7, according to claim 6, the characteristics of this equipment are, distortion utensil (1) wherein also contains the metallic elastic pad (6) that is fixed on the rubber sheet gasket (5) in addition, the surface (7) of metallic elastic pad (6) faces toward the nonreentrant surface (4) of roller (2), and is used as secondary rolling surface (9).
8, according to claim 7, the characteristics of this equipment are that the metallic elastic pad (13) of distortion utensil (1) wherein is made into corrugated.
9, according to Claim 8, the characteristics of this equipment are that the corrugated metallic elastic pad (13) that has of utensil (1) is out of shape in the surface reproduction of wherein being out of shape the rubber sheet gasket (5) of utensil (1).
10, according to claim 4, the characteristics of this equipment are, in the known distortion utensil of forming by two rollers (14,15 and 21,22) (1), the surface of a roller is made into convex (18,23), and the surface of another roller makes dished (19,24), and two surfaces are used as main rolling surface (18,23) and secondary rolling surface (19,24) respectively.
11, according to claim 10, the characteristics of this equipment are, a roller (25) that wherein is out of shape utensil (1) is made as hollow, concave curved surface on the roller is its inner surface (27), and this roller surrounds the convex surface (28) of the another roller (26) of distortion utensil (1) with its spill negative camber (27).
12, according to claim 11, the characteristics of this equipment are that the longitudinal axis (29,30) corresponding to two rollers (25,26) that are out of shape utensil (1) in this equipment interlocks.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SU1989/000155 WO1990014910A1 (en) | 1989-05-31 | 1989-05-31 | Method and device for making metal filaments from spherical particles of metal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1054732A true CN1054732A (en) | 1991-09-25 |
Family
ID=21617485
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90101343A Pending CN1054921A (en) | 1989-05-31 | 1990-03-14 | Utilize the spherical particle of metal dust to make the equipment of the method and this method of enforcement of metallic fiber |
| CN90101342A Pending CN1054732A (en) | 1989-05-31 | 1990-03-14 | Utilize the method and the equipment of realizing this method of the spherical particle processing metal fiber of metal dust |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90101343A Pending CN1054921A (en) | 1989-05-31 | 1990-03-14 | Utilize the spherical particle of metal dust to make the equipment of the method and this method of enforcement of metallic fiber |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN1054921A (en) |
| WO (1) | WO1990014910A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3570829A (en) * | 1965-11-10 | 1971-03-16 | Hermann J Schladitz | High strength metal filaments and the process and apparatus for forming the same |
| US4312670A (en) * | 1980-01-29 | 1982-01-26 | National-Standard Company | System for stretch casting filamentary shaped bodies |
| EP0043094B1 (en) * | 1980-06-27 | 1986-02-05 | Nippon Seisen Co., Ltd. | Stainless steel short fiber and process for preparing the same |
| DE3338523C2 (en) * | 1982-03-25 | 1987-05-27 | Bruss Polt I | Method and device for producing metal fibers |
-
1989
- 1989-05-31 WO PCT/SU1989/000155 patent/WO1990014910A1/en unknown
-
1990
- 1990-03-14 CN CN90101343A patent/CN1054921A/en active Pending
- 1990-03-14 CN CN90101342A patent/CN1054732A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990014910A1 (en) | 1990-12-13 |
| CN1054921A (en) | 1991-10-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |