CN104057257A - Method for manufacturing shielding bolt contact - Google Patents
Method for manufacturing shielding bolt contact Download PDFInfo
- Publication number
- CN104057257A CN104057257A CN201410292993.4A CN201410292993A CN104057257A CN 104057257 A CN104057257 A CN 104057257A CN 201410292993 A CN201410292993 A CN 201410292993A CN 104057257 A CN104057257 A CN 104057257A
- Authority
- CN
- China
- Prior art keywords
- cuw alloy
- band
- bolt contact
- rod iron
- cuw
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 34
- 239000000956 alloy Substances 0.000 claims abstract description 34
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 14
- 230000008595 infiltration Effects 0.000 claims description 10
- 238000001764 infiltration Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 14
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 2
- 238000005476 soldering Methods 0.000 description 8
- 239000011148 porous material Substances 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
Abstract
The invention discloses a method for manufacturing a shielding bolt contact. The method comprises the following steps: keeping a Cu transitional zone of certain allowance at one end of CuW alloy when the CuW alloy is prepared, then, performing connection on a Cu end and a steel part through a method of spin friction welding, and finally, processing according to a drawing to obtain the fabricated part. According to the method disclosed by the invention, redesign is performed on the basis of a past structure, and the connection is performed through the method of spin friction welding, and thus, defects brought during braze welding can be avoided; meanwhile, the work efficiency can be improved, and the cost can be reduced.
Description
[technical field]
The present invention relates to contact preparing technical field, particularly the preparation method of shielding bolt contact for a kind of high pressure electrical products.
[background technology]
Refer to shown in Fig. 1 and Fig. 2, shielding bolt class contact was connected the CuW alloy head 21 of screw threads for fastening by soldering in the past with steel construction 22, select silver-base solder, adopt Manual flame soldering, but method for welding was difficult to complete seam, cannot meet designing technique index.The first-time qualification rate of such part is lower.Connect CuW alloy and steel by method for welding, be often prone to the situation of seam completely, or have the existence of a large amount of pores in commissure.In formation due to such contact, there is steel to exist, making after finished product and must carry out antirust processing to it.In acid cleaning process when antirust, exist if any pore, steel will further expand pore volume with sour reacting so, so, will bury potential safety hazard to the use of this part.
Concerning the conventional method of attachment soldering of current such part, no matter respond to or flame heating, be local heat, obtain comparatively difficulty of tight weld; In the time that solder flux solidifies, owing to being difficult to realize consecutive solidification, therefore, the pore problem of commissure will be difficult to avoid, and therefore, obtain complete tight weld difficulty larger.
[summary of the invention]
The object of the present invention is to provide a kind of preparation method who shields bolt contact, improve bond strength and the yield rate of shielding bolt contact with respect to soldering.
For reaching above object, the present invention takes following technical scheme to be achieved:
A preparation method who shields bolt contact, comprises the following steps:
(1), infiltration method prepares CuW alloy, forms Cu band in one end of CuW alloy;
(2), CuW alloy and rod iron are carried out to descale processing;
(3), rod iron is welded and is connected by spin friction with Cu band;
(4), carry out machined and remove CuW alloy and rod iron allowance acquisition shielding bolt contact.
Preferably, the thickness of Cu band is 10～15mm, and the diameter of Cu band equals the diameter of rod iron to be connected.
Preferably, in step, CuW alloy and Cu band obtain time prepared by CuW alloy: infiltration cu phase in the W skeleton of firing in advance; Put into enough Cu pieces at infiltration cu phase time, make Cu in W skeleton have Cu band to form in one end of Cu in fully infiltrating mutually acquisition CuW alloy.
With respect to prior art, the present invention has the following advantages:
The present invention by leaving certain surplus Cu intermediate zone in the time preparing CuW alloy in its one end, the method for then welding by spin friction is connected Cu end with steel part, finally can obtain fabricated part according to figure paper conversion.On the present invention's architecture basics in the past, redesign, and the method for welding by spin friction connects, the defect of introducing so can avoid soldering time, can increase work efficiency, and can reduce costs simultaneously.
Spin friction welding method of the present invention is prepared CuW alloy+Cu band+steel construction contact part, has first saved the required silver solder of soldering, and secondly, the contact part time of spin friction welding method seam is approximately 2 minutes, has improved greatly production efficiency.The spin friction welding method that the present invention adopts, is conducive to the metallurgical binding between Cu band and steel interface, can ensure its interface bond strength.In addition, compared with existing method for brazing, the present invention is during by spin friction welding method, and only need formulate each welding parameter according to this invention can prepare qualified contact part by equipment.Compare method for brazing, the method is simple, and controllability is strong, is subject to the factors such as artificial, environment to affect less.
[brief description of the drawings]
Fig. 1 is existing shielding bolt contact braze-welded structure schematic diagram;
Fig. 2 is the explosive view that shields bolt contact shown in Fig. 1;
Fig. 2 the present invention prepares shielding bolt contact spin friction welding structure schematic diagram;
Fig. 4 is the explosive view that shields bolt contact shown in Fig. 3.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Refer to shown in Fig. 3 and Fig. 4, a kind of preparation method who shields bolt contact of the present invention, comprises subordinate's step:
(1), infiltration method prepares CuW alloy 31, in ensureing CuW alloy 31 sizes, leave certain thickness Cu to be with 32, Cu be 10～15mm with 32 thickness in one end of CuW alloy 31, Cu equals the diameter of rod iron 33 to be connected with 32 diameter;
(2), CuW alloy 31 and rod iron 33 are carried out to descale processing;
(3), be with 32 to weld and be connected by spin friction with Cu rod iron 33;
(4), carry out machined by drawing and remove CuW alloy 31 and rod iron 33 allowance acquisition shielding bolt class contacts.
In step 1, according to CuW alloy+Cu band+structural steel part structure, preparation CuW alloy; In ensureing CuW alloy size, leave a certain amount of Cu band in CuW alloy one end.In step 2, the CuW alloy preparing and steel are carried out to surface finish descale.In step 3, in spin friction soldering equipment, rod iron is welded and is connected by spin friction with Cu region.
In the present invention, CuW alloy and Cu band obtain time prepared by CuW alloy.Be specially, CuW alloy obtains by infiltration method, i.e. infiltration cu phase in the W skeleton of firing in advance.Put into enough Cu pieces at infiltration cu phase time, make in W skeleton Cu mutually fully infiltrate in obtaining CuW alloy 31 and have a certain amount of Cu to be with 32 formation in one end of Cu, Cu is 10～15mm with 32 thickness.
Will be rough turn to rod iron 33 according to drawing requirement, and end face after complete to car cleans.Cu is with 32 to be rotated friction welding with steel side 33 on spin friction soldering equipment, can obtains composite part.Part blank after being soldered is carried out to machined according to detail drawing, obtain final part.
Claims (3)
1. a preparation method who shields bolt contact, is characterized in that, comprises the following steps:
(1), infiltration method prepares CuW alloy (31), forms Cu band (32) in one end of CuW alloy (31);
(2), CuW alloy (31) and rod iron (33) are carried out to descale processing;
(3), rod iron (33) is welded and is connected by spin friction with Cu band (32);
(4), carry out machined and remove CuW alloy (31) and rod iron (33) allowance acquisition shielding bolt contact.
2. a kind of preparation method who shields bolt contact according to claim 1, it is characterized in that, comprise the following steps: the thickness of Cu band (32) is 10～15mm, the diameter of Cu band (32) equals the diameter of rod iron to be connected (33).
3. a kind of preparation method who shields bolt contact according to claim 1, it is characterized in that, comprise the following steps: in step (1), CuW alloy (31) and Cu band (32) obtain time prepared by CuW alloy: infiltration cu phase in the W skeleton of firing in advance; Put into enough Cu pieces at infiltration cu phase time, make Cu in W skeleton have Cu band (32) to form in one end of Cu in fully infiltrating mutually acquisition CuW alloy (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292993.4A CN104057257A (en) | 2014-06-25 | 2014-06-25 | Method for manufacturing shielding bolt contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292993.4A CN104057257A (en) | 2014-06-25 | 2014-06-25 | Method for manufacturing shielding bolt contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104057257A true CN104057257A (en) | 2014-09-24 |
Family
ID=51545344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410292993.4A Pending CN104057257A (en) | 2014-06-25 | 2014-06-25 | Method for manufacturing shielding bolt contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104057257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735844A (en) * | 2016-11-16 | 2017-05-31 | 大连理工大学 | For the wrapping structure and spin friction soldering method of dissimilar metal spin friction weldering |
| CN110480272A (en) * | 2019-08-23 | 2019-11-22 | 武汉轻工大学 | Automobile wheel hub bolt processing method and automobile wheel hub bolt |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001138069A (en) * | 1999-11-17 | 2001-05-22 | Toshiba Corp | Welded body of different kinds of metal materials, arc contactor and contactor |
| CN1395265A (en) * | 2002-08-23 | 2003-02-05 | 段沛林 | Method for making integral electric contact |
| CN1820887A (en) * | 2006-03-23 | 2006-08-23 | 汉中双戟摩擦焊接制造技术有限责任公司 | Friction welding method for high voltage power transmission and transforming contact |
| EP1962353A2 (en) * | 1997-11-19 | 2008-08-27 | Kabushiki Kaisha Toshiba | Joined structure of dissimilar metallic materials |
| CN101707147A (en) * | 2009-12-08 | 2010-05-12 | 浙江省冶金研究院有限公司 | Cu WC/Cu composite material and preparation technology |
| CN101847524A (en) * | 2009-03-23 | 2010-09-29 | 上海电科电工材料有限公司 | Electric contact copper-based material and preparation process thereof |
| CN102856101A (en) * | 2012-08-22 | 2013-01-02 | 上海电科电工材料有限公司 | Manufacturing method for friction welding type electrode contact |
-
2014
- 2014-06-25 CN CN201410292993.4A patent/CN104057257A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1962353A2 (en) * | 1997-11-19 | 2008-08-27 | Kabushiki Kaisha Toshiba | Joined structure of dissimilar metallic materials |
| JP2001138069A (en) * | 1999-11-17 | 2001-05-22 | Toshiba Corp | Welded body of different kinds of metal materials, arc contactor and contactor |
| CN1395265A (en) * | 2002-08-23 | 2003-02-05 | 段沛林 | Method for making integral electric contact |
| CN1820887A (en) * | 2006-03-23 | 2006-08-23 | 汉中双戟摩擦焊接制造技术有限责任公司 | Friction welding method for high voltage power transmission and transforming contact |
| CN101847524A (en) * | 2009-03-23 | 2010-09-29 | 上海电科电工材料有限公司 | Electric contact copper-based material and preparation process thereof |
| CN101707147A (en) * | 2009-12-08 | 2010-05-12 | 浙江省冶金研究院有限公司 | Cu WC/Cu composite material and preparation technology |
| CN102856101A (en) * | 2012-08-22 | 2013-01-02 | 上海电科电工材料有限公司 | Manufacturing method for friction welding type electrode contact |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735844A (en) * | 2016-11-16 | 2017-05-31 | 大连理工大学 | For the wrapping structure and spin friction soldering method of dissimilar metal spin friction weldering |
| CN106735844B (en) * | 2016-11-16 | 2019-01-11 | 大连理工大学 | A kind of dissimilar metal spin friction soldering method |
| CN110480272A (en) * | 2019-08-23 | 2019-11-22 | 武汉轻工大学 | Automobile wheel hub bolt processing method and automobile wheel hub bolt |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |