CN201511206U - Gun head of plasma welding gun for welding titanium and titanium alloy electrode blocks - Google Patents
Gun head of plasma welding gun for welding titanium and titanium alloy electrode blocks Download PDFInfo
- Publication number
- CN201511206U CN201511206U CN 200920034804 CN200920034804U CN201511206U CN 201511206 U CN201511206 U CN 201511206U CN 200920034804 CN200920034804 CN 200920034804 CN 200920034804 U CN200920034804 U CN 200920034804U CN 201511206 U CN201511206 U CN 201511206U
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- copper
- conducting rod
- base
- nozzle
- titanium
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Abstract
The utility model discloses a gun head of a plasma welding gun for welding titanium and titanium alloy electrode blocks, which comprises a cylindrical hollow copper electrode gun body, wherein a copper nozzle is arranged at the lower end of the copper electrode gun body; the copper electrode gun body and the copper nozzle are hollowly communicated internally; a layer of stainless steel water-proof pipes and a hollow conducting rod are vertically arranged in the copper electrode gun body; the conducting rod is not in contact with the copper electrode gun body; a cold water pipe is vertically arranged in the conducting rod; the cold water pipe is not in contact with the conducting rod; an electrode is arranged at the lower end of the conducting rod; the electrode arranged at the lower end of the conducting rod is a copper electrode; and the outer surface of the copper electrode is not in contact with the inner surface of the copper nozzle and the inner surface of the copper electrode gun body. The copper electrode is arranged below the conducting rod of the gun head of the plasma welding gun of the utility model, the copper electrode falls into a molten pool under the action of the argon gas which flows at high speed, and the copper is in a liquid state and has good mutual solubility with titanium and titanium alloy, thereby preventing solid inclusions from forming in titanium and titanium alloy and further preventing occurrence of adverse effect on the performance of products.
Description
Technical field
The utility model belongs to the soldering appliance technical field, relates to a kind of plasma gun rifle head that titanium, titanium alloy electrode piece are used that welds.
Background technology
The tungsten electrode plasma gun is in present titanium, the preparation of titan alloy casting ingot production industry consutrode, the most general welding equipment.Tungsten electrode plasma arc rifle is to utilize higher-order of oscillation power supply, between rifle head (tungsten electrode) and nozzle, produce electric arc, under the high temperature of electric arc, the nozzle inner surface of flowing through, argon gas between the tungsten electrode is ionized and conducting, under the effect of DC electric field, electric arc is introduced in the weldment surface, mechanical blockage effect at nozzle, argon gas, the thermal pinch of cooling water, under the acting in conjunction of the pinch effect of electric current, column electric arc is compressed in the very tiny scope, the current density in the electric arc, brightness increases, concentration of energy has formed the good ion arc of straight and upright property therefrom.The welding of titanium, titanium alloy electrode piece, the heat that utilizes plasma arc to produce just under the protection of argon gas, with the contact-making surface scorification of adjacent electrode block, reaches the purpose of two electrode block welding.In above-mentioned tungsten electrode ion gun structure, the rifle head adopts high-melting point metal tungsten to make, and connects power cathode; Nozzle, the workpiece that is welded connect positive source.This tungsten electrode plasma gun is at titanium, in the preparation of titanium alloy electrode piece, there is following defective: because the temperature of ion arc is up to 5000～30000K, the tungsten electrode rifle head length phase of emission electronics is subjected to hyperthermia radiation, tungsten electrode rifle head can produce distortion, volatilization, heat fatigue, under swiftly flowing ar gas acting, the tungsten piece of the head of tungsten electrode rifle head is probably fallen in the molten bath, because the fusing point of tungsten is 3410 ℃, the fusing point of titanium only is 1668 ℃, after tungsten entered the molten bath of titanium, it still can keep original solid forms, became the field trash in the titanium alloy, performance for product causes harmful effect.
Summary of the invention
The purpose of this utility model provides a kind of welding titanium, titanium alloy electrode piece plasma gun rifle head, solved in existing titanium, the preparation of titanium alloy consutrode, owing to the tungsten head scaling loss of plasma gun, fall piece, make the problem that produces solid inclusion in titanium, the titanium alloy product.
The technical scheme that the utility model adopted is, a kind of welding titanium, titanium alloy electrode piece plasma gun rifle head, the copper-base rifle body that comprises cylindrical hollow, copper-base rifle body lower end is provided with the copper nozzle, copper-base rifle body is that hollow and inside communicate with the copper nozzle, in copper-base rifle body, vertically be provided with one deck stainless steel marine riser, the copper-base rifle body and the inner space of copper nozzle are divided into inside and outside two-layer and space that the bottom communicates, should the inside and outside outer field upper end of two sheaf spaces be the nozzle cooling water outlet, the upper end of internal layer is the nozzle cooling water import, vertically be provided with the conducting rod of hollow in the copper-base rifle body, conducting rod does not contact with copper-base rifle body, the inside of conducting rod vertically is provided with cold water pipe, cold water pipe does not contact with conducting rod, and the upper end of cold water pipe is a rifle head cooling water intake, and the upper end in space is a rifle head cooling water outlet between cold water pipe and the conducting rod, the lower end of conducting rod is provided with copper-base, the inner surface of the outer surface of copper-base and copper nozzle, copper-base rifle body inner surface does not contact.
Feature of the present utility model also is,
Be provided with the argon gas distributor between copper-base rifle body inner surface and the conducting rod, argon gas distributor inner surface closely contacts with conducting rod, and argon gas distributor outer surface is a screw-like.
Be provided with a circle silicone rubber seal between conducting rod and the copper-base.
Be provided with two circle silicone rubber seals between copper nozzle and the copper-base rifle body inner surface.
Below the plasma gun rifle head conducting rod of the present utility model copper-base is set, because the fusing point of copper is 1083.4 ℃, be lower than 1668 ℃ of the fusing points of titanium, copper-base is fallen in the molten bath under swiftly flowing ar gas acting, copper is still liquid, and good intersolubility is arranged with titanium, titanium alloy, avoid in titanium, titanium alloy, forming solid inclusions, thereby can not cause harmful effect the performance of product.
Description of drawings
Fig. 1 is the structural representation of existing tungsten electrode plasma gun rifle head;
Fig. 2 is the structural representation of the utility model plasma gun rifle head;
Fig. 3 is the structural representation of argon gas distributor in the utility model plasma gun rifle head.
Among the figure, 1. cold water pipe, 2. rifle head cooling water intake, 3. rifle head cooling water outlet, 4. conducting rod, 5. copper nozzle, 6. stainless steel marine riser, 7. rifle body, 8. argon gas import, 9. nozzle cooling water import, 10. nozzle cooling water outlet, 11. tungsten electrodes, 12. nozzle, 13. copper-base rifle bodies, 14. copper-bases, 15. the argon gas distributor, 16. silicon rubber.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
The structure of existing tungsten electrode plasma gun rifle head as shown in Figure 1, there is the nozzle 12 of opening the lower end that comprises the back taper of the rifle body 7 of cylindrical hollow and rifle body 7 lower ends welding, rifle body 7 communicates with whole hollow and inside that nozzle 12 constitutes, in rifle body 7 and nozzle 12, be provided with one deck stainless steel marine riser 6, stainless steel marine riser 6 and rifle body 7, nozzle 12 does not contact, thereby stainless steel marine riser 6 is divided into the space that the inside and outside is two-layer and the bottom communicates with the rifle body 7 and the inner space of nozzle 12, this outer field upper end, bilayer space is nozzle cooling water outlet 10, and the upper end of nexine is nozzle cooling water import 9.In rifle body 7, vertically be provided with the conducting rod 4 of hollow, the outer surface of conducting rod 4 does not contact with the inwall of rifle body 7, the inside of conducting rod 4 vertically is provided with cylindrical cold water pipe 1, cold water pipe 1 does not contact with conducting rod 4, cold water pipe 1 is divided into the inside of conducting rod 4 hollows inside and outside two-layer, internal layer is a rifle head cooling water intake 2, and skin is a rifle head cooling water outlet 3.The lower end of conducting rod 4 is provided with tungsten electrode 11.Upper end, space between rifle body 7 inwalls and the conducting rod 4 is argon gas import 8.
The use of existing tungsten electrode plasma gun rifle head is that tungsten electrode 11 is connect power cathode; Nozzle 12, the workpiece that is welded connect positive source.To feed cold water in the cold water pipe 1, cold water enters from rifle head cooling water intake 2, flows out from rifle head cooling water outlet 3, thereby gives conducting rod 4 and tungsten electrode 11 coolings.Feed cold water from nozzle cooling water import 9, flow out from nozzle cooling water outlet 10 then, thereby give nozzle 12 coolings.Feed argon gas from argon gas import 8, connect power supply then, between tungsten electrode 11 and nozzle 12, produce electric arc, under the high temperature of electric arc, the argon gas of flowing through between nozzle 12 inner surfaces, the tungsten electrode 11 is ionized and conducting, under the effect of DC electric field, electric arc is introduced in the weldment surface, carries out the welding of titanium, titanium alloy electrode piece.
The structure of the utility model plasma gun rifle head as shown in Figure 2, comprise the copper-base rifle body 13 of cylindrical hollow and the copper nozzle 5 that has opening that welds in copper-base rifle body 13 lower ends, copper-base rifle body 13 is that hollow and inside communicate with the integral body that copper nozzle 5 constitutes, in copper-base rifle body 13, vertically be provided with one deck stainless steel marine riser 6, stainless steel marine riser 6 and copper-base rifle body 13, copper nozzle 5 does not contact, thereby the copper-base rifle body 13 and the inner space of copper nozzle 5 are divided into the space that the inside and outside is two-layer and the bottom communicates, this outer field upper end, bilayer space is nozzle cooling water outlet 10, and the upper end of nexine is nozzle cooling water import 9.In copper-base rifle body 13, vertically be provided with the conducting rod 4 of hollow, the outer surface of conducting rod 4 does not contact with copper-base rifle body 13 inwalls, the inside of conducting rod 4 vertically is provided with cold water pipe 1, cold water pipe 1 does not contact with conducting rod 4, the upper end of cold water pipe 1 is a rifle head cooling water intake 2, and the upper end in space is a rifle head cooling water outlet 3 between cold water pipe 1 and the conducting rod 4.The lower end of conducting rod 4 is provided with copper-base 14, the lower end of copper-base 14 is facing to the opening of copper nozzle 5, the outer surface of copper-base 14 does not contact with inner surface, copper-base rifle body 13 inwalls of copper nozzle 5, between conducting rod 4 and copper-base 14,, seal with two circle silicon rubber 16 at copper nozzle 5 and copper-base rifle body 13 inner surfaces with a circle silicon rubber 16 sealings.Upper end, space between copper-base rifle body 13 inwalls and the conducting rod 4 is argon gas import 8.Be provided with columniform argon gas distributor 15 in the space between copper-base rifle body 13 inwalls and conducting rod 4, argon gas distributor 15 inner surfaces closely contact with conducting rod 4, and outer surface is a screw-like, and the structure of argon gas distributor 15 as shown in Figure 3.
The use of the utility model plasma gun rifle head is, the welder of institute part connects power cathode, and copper-base 14 connects positive source.To feed cold water in the cold water pipe 1, cold water enters from rifle head cooling water intake 2, flows out from rifle head cooling water outlet 3, thereby gives conducting rod 4 and copper-base 14 coolings; Feed cold water from nozzle cooling water import 9, flow out from nozzle cooling water outlet 10 then, thereby give the copper nozzle 5 coolings.Feed argon gas from argon gas import 8, argon gas flows between copper-base 14 and the copper nozzle 5 uniformly from the screw thread concave surface process on argon gas distributor 15 surfaces.Connect higher-order of oscillation power supply then, under the high temperature of electric arc, argon gas is ionized and conducting, and under the effect of DC electric field, electric arc is introduced in the weldment surface, carries out the welding of titanium, titanium alloy electrode piece.
The utility model plasma gun rifle head is in the middle of use, because workpiece connects power cathode, copper-base 14 connects positive source, so electronics is flowed to copper-base 14 by workpiece, but be subjected to ar gas acting, argon gas makes the final major part of electronics flow on the copper nozzle 5 from 5 ejections of copper nozzle, has only the small part electronics to flow on the copper-base 14.Even copper-base 14 is fallen in the molten bath under swiftly flowing ar gas acting, because the fusing point of copper is 1668 ℃ of 1083.4 ℃ of fusing points that are lower than titanium, copper is still liquid, and good intersolubility is arranged with titanium, titanium alloy, avoid in titanium, titanium alloy, forming solid inclusions, so can not cause harmful effect for the performance of product.Through test, adopt the consutrode of the utility model plasma gun rifle head preparation to satisfy technological requirement fully, but and copper-base, the continuous operation of copper nozzle 300～350 hours.
Claims (4)
1. one kind is welded titanium, titanium alloy electrode piece plasma gun rifle head, the copper-base rifle body (13) that comprises cylindrical hollow, copper-base rifle body (13) lower end is provided with copper nozzle (5), described copper-base rifle body (13) communicates for hollow and inside with copper nozzle (5), in copper-base rifle body (13), vertically be provided with one deck stainless steel marine riser (6), the copper-base rifle body (13) and the inner space of copper nozzle (5) are divided into inside and outside two-layer and space that the bottom communicates, should the inside and outside outer field upper end of two sheaf spaces be nozzle cooling water outlet (10), the upper end of internal layer is nozzle cooling water import (9), vertically be provided with the conducting rod (4) of hollow in the copper-base rifle body (13), conducting rod (4) does not contact with copper-base rifle body (13), the inside of described conducting rod (4) vertically is provided with cold water pipe (1), cold water pipe (1) does not contact with conducting rod (4), the upper end of cold water pipe (1) is a rifle head cooling water intake (2), the upper end in space is a rifle head cooling water outlet (3) between cold water pipe (1) and the conducting rod (4), the lower end of described conducting rod (4) is provided with electrode, it is characterized in that, the electrode that described conducting rod (4) lower end is provided with is copper-base (14), the inner surface of the outer surface of copper-base (14) and copper nozzle (5), copper-base rifle body (13) inner surface does not contact.
2. plasma gun rifle head according to claim 1, it is characterized in that, be provided with argon gas distributor (15) between described copper-base rifle body (13) inner surface and the conducting rod (4), described argon gas distributor (15) inner surface closely contacts with conducting rod (4), and described argon gas distributor (15) outer surface is a screw-like.
3. plasma gun rifle head according to claim 1 and 2 is characterized in that, is provided with circle silicon rubber (a 16) sealing between described conducting rod (4) and the copper-base (14).
4. plasma gun rifle head according to claim 1 and 2 is characterized in that, is provided with two circle silicon rubber (16) sealings between described copper nozzle (5) and copper-base rifle body (13) inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920034804 CN201511206U (en) | 2009-09-28 | 2009-09-28 | Gun head of plasma welding gun for welding titanium and titanium alloy electrode blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920034804 CN201511206U (en) | 2009-09-28 | 2009-09-28 | Gun head of plasma welding gun for welding titanium and titanium alloy electrode blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511206U true CN201511206U (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200920034804 Expired - Lifetime CN201511206U (en) | 2009-09-28 | 2009-09-28 | Gun head of plasma welding gun for welding titanium and titanium alloy electrode blocks |
Country Status (1)
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| CN (1) | CN201511206U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528249A (en) * | 2012-03-02 | 2012-07-04 | 北京工业大学 | Condensation electric arc welding gun |
| CN106735763A (en) * | 2017-03-14 | 2017-05-31 | 东莞市金龙珠宝首饰有限公司 | A kind of gas welding welding gun |
| CN107363425A (en) * | 2017-08-22 | 2017-11-21 | 天津大学 | A kind of compound compression-free arc plasma arc welding system |
| CN107695492A (en) * | 2017-11-13 | 2018-02-16 | 昆山华恒焊接股份有限公司 | TIG welding guns |
| CN110524096A (en) * | 2019-08-06 | 2019-12-03 | 宝鸡鼎晟真空热技术有限公司 | For connecting the plasma gun of vacuum welding equipment |
-
2009
- 2009-09-28 CN CN 200920034804 patent/CN201511206U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528249A (en) * | 2012-03-02 | 2012-07-04 | 北京工业大学 | Condensation electric arc welding gun |
| CN106735763A (en) * | 2017-03-14 | 2017-05-31 | 东莞市金龙珠宝首饰有限公司 | A kind of gas welding welding gun |
| CN107363425A (en) * | 2017-08-22 | 2017-11-21 | 天津大学 | A kind of compound compression-free arc plasma arc welding system |
| CN107363425B (en) * | 2017-08-22 | 2019-07-19 | 天津大学 | A kind of free arc plasma arc welding system of compound compression- |
| CN107695492A (en) * | 2017-11-13 | 2018-02-16 | 昆山华恒焊接股份有限公司 | TIG welding guns |
| CN107695492B (en) * | 2017-11-13 | 2023-09-05 | 昆山华恒焊接股份有限公司 | TIG welding gun |
| CN110524096A (en) * | 2019-08-06 | 2019-12-03 | 宝鸡鼎晟真空热技术有限公司 | For connecting the plasma gun of vacuum welding equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WESTERN SUPERCOMDUCING TECHNOLOGIES CO., LTD. Free format text: FORMER NAME: WESTERN SUPERCONDUCTING TECHNOLOGIES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710018 Shaanxi province Xi'an Mingguang Road Economic Development Zone No. 12 Patentee after: Western Superconducting Technologies Co., Ltd. Address before: 710018 Shaanxi province Xi'an Mingguang Road Economic Development Zone No. 12 Patentee before: Western Superconducting Technologies Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |