CN104708191A - Novel stainless steel hush pipe welding method - Google Patents
Novel stainless steel hush pipe welding method Download PDFInfo
- Publication number
- CN104708191A CN104708191A CN201510032220.7A CN201510032220A CN104708191A CN 104708191 A CN104708191 A CN 104708191A CN 201510032220 A CN201510032220 A CN 201510032220A CN 104708191 A CN104708191 A CN 104708191A
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- CN
- China
- Prior art keywords
- pipe
- welding
- stainless steel
- welding method
- hush pipe
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
- B23K13/02—Seam welding
- B23K13/025—Seam welding for tubes
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a novel stainless steel hush pipe welding method and relates to the technical field of refrigerating device welding. The novel stainless steel hush pipe welding method is characterized by including the steps that firstly, a stainless steel pipe of the proper length is cut off through a cutting machine, notches are ground and chamfered through a grinding device, the two ends are necked through a spinning lathe, and the whole pipe is annealed and finally ground again and washed; secondly, copper pipes of the proper length are cut off, flared and finally polished and chamfered to form an air inflow pipe and an air outflow pipe; thirdly, the air inflow pipe and the air outflow pipe are inserted in the ports of a hush pipe, the welding currents are concentrated to the surfaces of the welding positions through a high-frequency welding machine, the temperature of the surfaces is increased, and the welding faces are melted to achieve welding fixing operation. Design is ingenious, a high-frequency welding method is adopted for welding, and the method has the advantages that ineffective distributed currents are few; due to the fact that a contact head is close to an extrusion roller, the current density is large, and efficiency is high; the heat effect range is small; the pipe diameter effect is small, and the welding speed is high.
Description
Technical field
The present invention relates to refrigeration plant welding technology field, be specifically related to a kind of welding method of novel stainless steel hush pipe.
Background technology
Muffler be use in a kind of refrigeration system not only air-flow can be made to pass through but also effectively can reduce the equipment of noise, it comprises the larger hush pipe of one section of diameter and is welded in the less air inlet pipe of hush pipe two ends diameter and escape pipe.The hush pipe of conventional muffler, air inlet pipe and escape pipe are all adopt copper pipe to make, and copper product price is high, makes muffler cost compare high; Market there is the muffler using irony hush pipe and copper turnover tracheae to be welded into, copper material is replaced by ferrous material, save cost, but the hush pipe outer wall of irony needs rust prevention by applying liquid material layer, antirust coat material is generally antirust paint or antirusting paint, these materials easily cause environmental pollution in spraying process, and hush pipe inwall is not rust prevention by applying liquid material layer, and still get rusty easily corrosion.
The mode of the high temperature brazier that traditional muffler adopts is welded, and high temperature welding furnace heats entirety needs, is easily out of shape, and pre-treatment requires higher.
Summary of the invention
The object of this invention is to provide a kind of welding method of novel stainless steel hush pipe, its design is ingenious, adopts the method for high-frequency welding to weld, has invalid shunting few; Because contact head is near extruding rod, current density is large, and efficiency is high; Heated effluent field is little; Caliber impact is little, the advantage that speed of welding is high.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: its welding method: step one, first the stainless steel tube of suitable length is intercepted by cutting machine, by grinding apparatus, polishing chamfering is carried out to otch again, and then by spinning machine, reducing is carried out to two ends, then annealing in process is carried out to entirety, finally again carry out polishing cleaning; Step 2, intercepts the copper pipe being applicable to length, carries out enlarging process, finally carry out polishing chamfered and make air inlet pipe and escape pipe copper pipe; Step 3, is plugged into the port of hush pipe, then high-frequency welder by air inlet pipe and escape pipe, surface welding current being gathered in weld makes it heat up, and part solder side melts realization and is welded and fixed.
Beneficial effect of the present invention: its design is ingenious, adopts the method for high-frequency welding to weld, has invalid shunting few; Because contact head is near extruding rod, current density is large, and efficiency is high; Heated effluent field is little; Caliber impact is little, the advantage that speed of welding is high.
Detailed description of the invention:
The present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, the present invention is further elaborated.Should be appreciated that detailed description of the invention described herein only in order to explain the present invention, be not intended to limit the present invention.
This detailed description of the invention is by the following technical solutions: its welding method: step one, first the stainless steel tube of suitable length is intercepted by cutting machine, by grinding apparatus, polishing chamfering is carried out to otch again, and then by spinning machine, reducing is carried out to two ends, then annealing in process is carried out to entirety, finally again carry out polishing cleaning; Step 2, intercepts the copper pipe being applicable to length, carries out enlarging process, finally carry out polishing chamfered and make air inlet pipe and escape pipe copper pipe; Step 3, is plugged into the port of hush pipe, then high-frequency welder by air inlet pipe and escape pipe, surface welding current being gathered in weld makes it heat up, and part solder side melts realization and is welded and fixed.
High-frequency welding principle: when high frequency electric is by metallic conductor, can produce two kinds of peculiar effects: kelvin effect and kindred effect, high-frequency welding utilizes these two kinds of effects to carry out the welding of steel pipe.
When kelvin effect to refer to the alternating current of certain frequency by same conductor, the density of electric current is not all cross sections being distributed in conductor equably, it can be main in the set of surfaces of conductor, namely electric current is large in the density of conductive surface, little in the density of conductor, so we are referred to as visually: " kelvin effect ".Kelvin effect is measured by the penetration depth of electric current usually, and penetration value is less, and kelvin effect is more remarkable.This penetration depth is directly proportional to the square root of the resistivity of conductor, is inversely proportional to the square root of frequency and magnetic conductivity.Generally, frequency is higher, and electric current more concentrates on the surface of steel plate; Frequency is lower, and surface current is just overstepping the bounds of propriety loose.Must be noted that: although iron and steel is conductor, its magnetic conductivity can raise along with temperature and decline, and in other words, when steel billet temperature raises time, magnetic conductivity can decline, and kelvin effect can reduce.
Kindred effect refers to high frequency electric in two adjacent conductors during reverse flow, electric current can concentrate flowing to the edge that two conductors are close, even if two conductors have a shorter limit in addition, electric current is not also along shorter path flows, and we call this effect: " kindred effect ".
Kindred effect is the effect due to induction reactance in essence, and induction reactance plays a part leading in high frequency electric.Kindred effect becomes near along with frequency increases with the spacing of adjacent conductor and increases, if add a magnetic core around proximity conductor, so high frequency electric will more concentrate on the top layer of workpiece.
These two kinds of effects are the bases realizing metal high-frequency welding.High-frequency welding is exactly make use of the surface of concentration of energy at workpiece that kelvin effect makes high frequency electric; And make use of kindred effect to control position and the scope of high frequency electric glide path.The speed of electric current is very fast, and adjacent steel plate edge can heat by a short period of time, melting, and is achieved a butt joint by extruding.
This detailed description of the invention beneficial effect: its design is ingenious, adopts the method for high-frequency welding to weld, has invalid shunting few; Because contact head is near extruding rod, current density is large, and efficiency is high; Heated effluent field is little; Caliber impact is little, the advantage that speed of welding is high.
The above is only in order to illustrate technical scheme of the present invention and unrestricted, other amendment that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (1)
1. the welding method of a novel stainless steel hush pipe, it is characterized in that its welding method: step one, first the stainless steel tube of suitable length is intercepted by cutting machine, by grinding apparatus, polishing chamfering is carried out to otch again, and then by spinning machine, reducing is carried out to two ends, then annealing in process is carried out to entirety, finally again carry out polishing cleaning; Step 2, intercepts the copper pipe being applicable to length, carries out enlarging process, finally carry out polishing chamfered and make air inlet pipe and escape pipe copper pipe; Step 3, is plugged into the port of hush pipe, then high-frequency welder by air inlet pipe and escape pipe, surface welding current being gathered in weld makes it heat up, and part solder side melts realization and is welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032220.7A CN104708191A (en) | 2015-01-22 | 2015-01-22 | Novel stainless steel hush pipe welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032220.7A CN104708191A (en) | 2015-01-22 | 2015-01-22 | Novel stainless steel hush pipe welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104708191A true CN104708191A (en) | 2015-06-17 |
Family
ID=53408193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510032220.7A Pending CN104708191A (en) | 2015-01-22 | 2015-01-22 | Novel stainless steel hush pipe welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104708191A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345407A (en) * | 2015-11-26 | 2016-02-24 | 安徽中鼎金亚汽车管件制造有限公司 | Production process of gearbox hydraulic pipe |
| CN106514144A (en) * | 2016-11-11 | 2017-03-22 | 成都陵川特种工业有限责任公司 | Production method for device capable of lowering sound |
| CN107214475A (en) * | 2017-06-06 | 2017-09-29 | 宁波百德满不锈钢有限公司 | A kind of stainless steel tube production method for being used to produce automobile silencing pipe |
| CN107378398A (en) * | 2017-07-20 | 2017-11-24 | 江苏省常熟环通实业有限公司 | A kind of welded still pipe processing technology with sound insulation function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB286823A (en) * | 1927-01-01 | 1928-03-15 | Neville Ryland Davis | Improvements in the brazing, soldering or welding of metals by fusion |
| CN2060709U (en) * | 1990-03-01 | 1990-08-22 | 上海市通用高频设备厂 | High frequncy internal thermal soldering hot head for bicycle frame |
| CN102338257A (en) * | 2010-07-28 | 2012-02-01 | 新昌县铁牛金属制造有限公司 | Stainless steel muffler and manufacturing process thereof |
| CN102528193A (en) * | 2011-12-30 | 2012-07-04 | 刘字冬 | Copper and stainless steel brazing process |
| CN103506807A (en) * | 2012-06-21 | 2014-01-15 | 浙江三花制冷集团有限公司 | Method for manufacturing silencer of split-type structure |
| CN203857659U (en) * | 2014-05-21 | 2014-10-01 | 泰州市宏祥动力机械有限公司 | Muffler of air conditioning refrigeration pipeline |
| CN203964311U (en) * | 2014-07-18 | 2014-11-26 | 江苏罡阳转向***有限公司 | A kind of vacuum multi-stage air conditioner muffler |
-
2015
- 2015-01-22 CN CN201510032220.7A patent/CN104708191A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB286823A (en) * | 1927-01-01 | 1928-03-15 | Neville Ryland Davis | Improvements in the brazing, soldering or welding of metals by fusion |
| CN2060709U (en) * | 1990-03-01 | 1990-08-22 | 上海市通用高频设备厂 | High frequncy internal thermal soldering hot head for bicycle frame |
| CN102338257A (en) * | 2010-07-28 | 2012-02-01 | 新昌县铁牛金属制造有限公司 | Stainless steel muffler and manufacturing process thereof |
| CN102528193A (en) * | 2011-12-30 | 2012-07-04 | 刘字冬 | Copper and stainless steel brazing process |
| CN103506807A (en) * | 2012-06-21 | 2014-01-15 | 浙江三花制冷集团有限公司 | Method for manufacturing silencer of split-type structure |
| CN203857659U (en) * | 2014-05-21 | 2014-10-01 | 泰州市宏祥动力机械有限公司 | Muffler of air conditioning refrigeration pipeline |
| CN203964311U (en) * | 2014-07-18 | 2014-11-26 | 江苏罡阳转向***有限公司 | A kind of vacuum multi-stage air conditioner muffler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345407A (en) * | 2015-11-26 | 2016-02-24 | 安徽中鼎金亚汽车管件制造有限公司 | Production process of gearbox hydraulic pipe |
| CN106514144A (en) * | 2016-11-11 | 2017-03-22 | 成都陵川特种工业有限责任公司 | Production method for device capable of lowering sound |
| CN106514144B (en) * | 2016-11-11 | 2018-11-23 | 成都陵川特种工业有限责任公司 | A kind of production method reducing audio unit |
| CN107214475A (en) * | 2017-06-06 | 2017-09-29 | 宁波百德满不锈钢有限公司 | A kind of stainless steel tube production method for being used to produce automobile silencing pipe |
| CN107378398A (en) * | 2017-07-20 | 2017-11-24 | 江苏省常熟环通实业有限公司 | A kind of welded still pipe processing technology with sound insulation function |
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Application publication date: 20150617 |
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