CN202934266U - Welding device and welding equipment with same - Google Patents
Welding device and welding equipment with same Download PDFInfo
- Publication number
- CN202934266U CN202934266U CN 201220601540 CN201220601540U CN202934266U CN 202934266 U CN202934266 U CN 202934266U CN 201220601540 CN201220601540 CN 201220601540 CN 201220601540 U CN201220601540 U CN 201220601540U CN 202934266 U CN202934266 U CN 202934266U
- Authority
- CN
- China
- Prior art keywords
- welding
- induction heater
- welder
- guard member
- induction
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- General Induction Heating (AREA)
Abstract
The utility model discloses a welding device. The welding device comprises an induction heater and a welding gun assembly which are sequentially arranged on a connecting member along a first direction, the heating end of the induction heater and the welding head of the welding gun assembly are arranged in a same direction relative to the connecting member, and the first direction is a welded seam forming direction. The welding device with a preheating function before welding can shorten the operation time effectively and control the welding quality effectively; and because preheating and welding are synchronized, the waiting time between the preheating and the welding is eliminated, the production efficiency can be effectively improved, and the welding device has a high energy utilization rate. Moreover, by virtue of the induction heater adopting an electromagnetic induction principle, splash is not produced in the heating process, safety accidents such as burn and scald in the operation process can be eliminated, the production safety of operators is ensured, and a working environment is greatly improved. The utility model also provides welding equipment with the welding device.
Description
Technical field
The utility model relates to technical field of welding equipment, is specifically related to a kind of welder and has the welding equipment of this device.
Background technology
Along with developing rapidly of economic construction, the infrastructure scales such as road traffic, airport, harbour, water conservancy and hydropower, urban construction are also increasing, are gradually the trend variation of high capacity for the demand of all kinds engineering machinery.Except dynamical system, control system etc., the body bearing capacity of engineering machinery needs synchronous the raising, and the welding quality of its main load assembly has become and adapts to one of important indicator that high capacity requires.
As everyone knows, important component reaches the welding than thick parts, all requires to carry out preheating before weldering, thereby obtains higher welding quality.In prior art, the mode of artificial flame (generally with oxygen+propane as burning gases) preheating is adopted in weld preheating mostly, specifically sees also Fig. 1.When weldment is carried out preheating, at first pressure-reducing valve is opened, regulated oxygen and propane gas output, the hand-held grilled gun of operator, and then open the grilled gun switch and light burning gases utilizes the flame that produces high temperature that the preheating zone is heated.
Yet, when the mode that adopts flame to heat is carried out weld preheating to weldment, affected by workman's operation behavior larger, exist following what time not enough:
(1) the weldment quality is unstable.Manually-operated randomness is stronger, makes the translational speed of weldment preheating width, heating non-constant, and successively also there is temperature contrast in the zone of heating simultaneously, causes postwelding joint distortion and stress distribution inhomogeneous.
(2) less economical.When large-sized structural parts is carried out preheating, due to the existence of the phenomenons such as heat conduction, heat radiation, convection current, cause most of heat to run off; And the workpiece after heating runs off because the untimely follow-up of welding also can make heat generation, and capacity usage ratio is lower, and is less economical.
(3) the manually-operated experience is had relatively high expectations, inefficiency.
(4) poor working environment.The splash that produces in heating process is easily scalded the operator.
In view of this, demanding urgently looking for another way is optimized design for the weld preheating technology, the defects that exists to overcome the flame mode of heating.
The utility model content
For defects, the technical problem that the utility model solves is, a kind of welder with weld preheating function is provided, and can evade the existing above-mentioned deficiency of flame mode of heating fully.On this basis, the utility model also provides a kind of welding equipment with this welder.
The welder that the utility model provides, comprise induction heater and welding gun assembly, described induction heater and welding gun assembly are set in turn in connecting elements along first direction, and the welding head of executing hot junction and described welding gun assembly of described induction heater arranges in the same way with respect to described connecting elements, and described first direction is that weld seam forms direction.
Preferably, described induction heater has guard member, is provided with at least two group induction coils on described guard member.
Preferably, be fixedly installed on described guard member and every group of lug boss that induction coil is corresponding, described induction coil is surrounded on the root of corresponding described lug boss.
Preferably, described guard member is specially tabular, and described lug boss is the strip that arranges along first direction.
Preferably, described guard member is specially bending-like, and described lug boss is the strip that arranges along first direction, and is separately positioned on two plate faces of bending-like guard member.
Preferably, described guard member adopts glass fibre or heat-stable ceramic to make.
The welding equipment that the utility model provides comprises foregoing welder, and drives chassis and transverse arm; Wherein, described driving chassis can be along the first direction displacement, and described transverse arm is arranged on described driving chassis and stretches in described driving chassis outside second direction; And described welder is arranged at the overhanging end of described transverse arm, and described second direction is vertical with described first direction.
Preferably, described transverse arm can be adjusted relative position with respect to described driving chassis along second direction and third direction respectively, and described third direction is all vertical with second direction with described first direction.
Preferably, described welding gun assembly can be adjusted relative position with respect to connecting elements along second direction and third direction respectively, and described induction heater can be adjusted relative position with respect to connecting elements along second direction and third direction respectively.
Preferably, also comprise two closed slides that are fixedly installed, the driving wheel of described driving chassis and described closed slide are equipped with.
Preferably, also be provided with the source of welding current that supplies power to described weld assembly on described driving chassis, and the medium frequency induction power supply that supplies power to described induction heater.
The welder that the utility model provides has the front heating function of weldering concurrently, its induction heater and welding gun assembly are set in turn in connecting elements along first direction (fore-and-aft direction that weld seam forms), that is to say, direction with respect to weld seam formation, this programme is provided with induction heater in the front side of welding gun assembly, by induction heater, the weld interface of workpiece and the workpiece of near interface is partly heated; Simultaneously, the welding head of executing hot junction and welding gun assembly of induction heater arranges in the same way with respect to connecting elements, make execute the hot junction all can be relative with member to be welded with the welding head.So arrange, at welding sequence, induction heater and welding gun assembly advance with identical speed, preheating and welding are synchronously carried out, an operator just can complete preheating and welding simultaneously, effectively reducing on the basis of working hour, can effectively control welding quality; Simultaneously, because preheating and welding are synchronously carried out, eliminate the stand-by period between preheating and welding, can effectively enhance productivity, have higher capacity usage ratio.In addition, this programme adopts the induction heater utilize electromagnetic induction principle, can not produce in heating process and splash, but the security incidents such as burn, scald in the cancel job process is guaranteed operating personnel's production safety, have greatly improved operating environment.
In preferred version of the present utility model, the guard member of its induction heater can for being applicable to the tabular of butt weld, also can be applicable to angle welding for bending-like; So arrange, can effectively improve capacity usage ratio so that the coil of induction heater further adapts to the shape of member to be welded, improve simultaneously pre-heat effect, for the reliable welding quality that improves provides reliable guarantee.
The driving chassis of welding equipment described in the utility model can be along the first direction displacement, automatically to realize the Synchronous Pre thermal weld; In addition, its transverse arm can also be adjusted relative position along second direction (left and right directions) and third direction (above-below direction) with respect to driving chassis; So arrange, can regulate working depth and the overhang of transverse arm, different size workpiece and welding position are implemented effectively welding.
In another preferred version, warm-up block controls according to member thickness to be welded, material property and speed of welding the electric current that the source of welding current exports induction heater to, can effectively satisfy the preheating requirement that reduces weld defect.
Description of drawings
Fig. 1 is the working state schematic representation of existing artificial flame mode of heating;
Fig. 2 is that the axle of the described welding equipment of the specific embodiment measures intention;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is that the B of Fig. 2 is to view;
Fig. 5 is the I section enlarged diagram of welder shown in Fig. 2;
Fig. 6 is the overall structure schematic diagram of induction heater shown in the first embodiment;
Fig. 7 is the principle schematic that induction heater shown in Fig. 6 uses state;
Fig. 8 is the overall structure schematic diagram of induction heater shown in the second embodiment;
Fig. 9 is the principle schematic that induction heater shown in Fig. 8 uses state.
In Fig. 2 to Fig. 9:
Guard member 211', lug boss 2111', guard member 211 ", lug boss 2111 ",
Induction coil 212, attached seat 213, welding gun assembly 22, a welding 22b, connecting elements 23, crossbeam 30, member to be welded 40, switch board 50.
The specific embodiment
Core of the present utility model is to provide a kind of welder that has the front heating function of weldering concurrently, eliminates the stand-by period between preheating and welding, by induction heater, the weld interface of workpiece and the workpiece of near interface is partly heated; Simultaneously, the welding equipment of using this welder can be realized the preheating welding operation automatically.Be elaborated below in conjunction with Figure of description.
See also Fig. 2, Fig. 3 and Fig. 4, wherein, Fig. 2 is that the axle of the described welding equipment of present embodiment measures intention, Fig. 3 be the A of Fig. 2 to view, Fig. 4 is that the B of Fig. 2 is to view.
As shown in the figure, this welding equipment comprises can be along the driving chassis 10 of first direction X displacement, first direction X is that weld seam forms direction, drives chassis 10 along first direction X displacement at a predetermined velocity, can form set weld seam after its welder welding is completed on member to be welded.
Wherein, welder 20 is connected with driving chassis 10 by crossbeam 30.Particularly, this crossbeam 30 stretches in outside second direction Y and drives chassis 10, carries out welding in order to be arranged on the welder 20 of these crossbeam 30 overhanging ends.In driving the chassis displacement plane, second direction Y is vertical with first direction X.For describing the concrete structure of this programme welder 20 in detail, please in the lump referring to Fig. 5, this figure is the I section enlarged diagram of welder shown in Fig. 2.
In this programme, this welder 20 comprises induction heater 21 and welding gun assembly 22, and induction heater 21 and welding gun assembly 22 are set in turn in connecting elements 23 along first direction X, and by the overhanging end of connecting elements 23 with crossbeam 30; And a welding 22b who executes hot junction 21a and welding gun assembly 22 of induction heater 21 arranges in the same way with respect to this connecting elements 23.Wherein, welding gun assembly 22 can adopt existing techniques in realizing, therefore this paper repeats no more.
Need to prove, connecting elements 23 specifically can adopt different version to realize, connects induction heater 21 and welding gun assembly 22 as long as satisfy, and sets up reliable the connection all in the scope that the application asks for protection between welder 20 and crossbeam 30.
Particularly, this induction heater 21 has guard member, is provided with at least two group induction coils 212 on guard member, heats with effective weld seam and weld seam two side areas for member bodies to be welded.Below be elaborated with two embodiment.
See also Fig. 6 and Fig. 7, wherein, Fig. 6 is the overall structure schematic diagram of induction heater shown in the first embodiment, and Fig. 7 is the principle schematic that induction heater shown in Fig. 6 uses state.
As shown in Figure 6 and Figure 7, be fixedly installed the lug boss 2111' corresponding with every group of induction coil 212 on guard member 211', induction coil 212 is surrounded on the root of corresponding lug boss 2111', to press close to member 40 to be welded.In this programme, guard member 211' is specially bending-like, and to adapt to the welding of angle welding, lug boss 2111' is the strip that arranges along first direction X, and is separately positioned on two plate faces of bending-like guard member 211'.In addition, as shown in Figure 6, the openend of bending-like guard member 211' can be provided with hush panel, so that the attached seat 213 that is provided for being connected with connecting elements 23.
In fact, the concrete quantity of induction coil 212 can be selected according to member material, thickness, groove type and weld size, but not being confined to two shown in figure, when specifically heating, each induction coil 212 lays respectively at the both sides of weld seam, and workpiece is carried out homogeneous heating.In addition, guard member 211' can adopt glass fibre or heat-stable ceramic to make, and all can as long as can satisfy the requirement of electromagnetic induction heating.
What specify is, two formed angles of plate face of this bending-like guard member 211' also are not limited to the degree of 90 shown in figure, obviously, gets final product according to the difference design of the actual angle of two members to be welded.
So arrange, along with driving advancing of chassis 10, induction heater 21 and welding gun assembly 22 are with respect to the synchronized displacement of member to be welded.Obviously, because preheating and welding are synchronously carried out, eliminate the stand-by period between preheating and welding, can effectively enhance productivity, have higher capacity usage ratio.In addition, this programme adopts the induction heater that utilizes electromagnetic induction principle, can not produce in heating process and splash.
Induction heater shown in above-described embodiment is applicable to the welder of angle welding, and next, shown in the second embodiment, induction heater is applicable to the welding of butt weld.Specifically please in the lump referring to Fig. 8 and Fig. 9, wherein, Fig. 8 is the overall structure schematic diagram of induction heater shown in the second embodiment, and Fig. 9 is the principle schematic that induction heater shown in Fig. 8 uses state.
This programme is that from the essential distinction of the first embodiment the shape of guard member is different.As shown in the figure, guard member 211 " is specially tabular, the lug boss 2111 on it " and is similarly the strip that arranges along first direction, is surrounded on respective bump section 2111 " on two induction coils 212 lay respectively at the both sides of weld seam.In like manner, shown in figure, two induction coils 212 are only exemplary illustration, and its concrete quantity can be set according to actual condition.
During actual heating, the surface of guard member and member to be welded 40 is left certain for d, for the better different workpiece of adaptation.Preferably, transverse arm 30 can be adjusted relative position with respect to driving chassis 10 along second direction Y and third direction Z respectively, wherein, third direction Z is all vertical with second direction Y with first direction X, thus, can adjust according to the appearance and size of difference member to be welded, to meet the needs that heat before weldering.
In addition, for further promoting the degree of regulation of this welding equipment, its welding gun assembly 22 can be adjusted relative position with respect to connecting elements 23 along second direction Y and third direction Z respectively, and its induction heater 21 also can be adjusted relative position with respect to connecting elements 23 along second direction Y and third direction Z respectively.That is to say, on the basis of crossbeam 30 coarse regulation, carry out accurate adjustment by welding gun assembly 22 and induction heater 21 whole.
Preferably, based on driving the driving chassis 10 of welder 20 along the first direction displacement, can set up two closed slides 11 that are fixedly installed, correspondingly, the driving wheel and the closed slide 11 that drive chassis 10 are equipped with.So arrange, as long as guarantee that closed slide 11 is fixedly installed, can guarantee to drive the even running of chassis 10, thereby greatly reduce the environmental requirement for welding shop.
In addition, drive on chassis 10 and also be provided with the source of welding current that supplies power to weld assembly 22, and the medium frequency induction power supply that supplies power to induction heater 21, by setting medium frequency induction power supply alternating current flow valuve, induction coil 212 by induction heater 21 is given member to be welded electrical energy transfer, and then electric energy is converted into heat energy at inside workpiece again, thereby workpiece reaches required preheat temperature.Certainly, can regulate the induction power supply electric current according to different welding procedures, make workpiece weld seam the place ahead temperature reach preheating requirement.
Particularly, drive on chassis 10 switch board 50 can be set, with an integrated PLC control system.This control system comprises welding module, warm-up block and chassis driver module, so that form rational logical order in preheating and welding synchronizing process; Certainly, these systemic-functions are programmed on the control panel of switch board 50, by regulating the position of transverse arm 30, induction heater 21 and welding gun assembly 22, different size workpiece and welding position are implemented welding, and determine induction heating current based on factors such as thickness of workpiece, material property, speeds of welding, by induction heater, the weld interface of workpiece and the workpiece of near interface are partly heated, reach the preheating requirement that reduces weld defect.Drive chassis and move with the speed of welding direction along ng a path of setting, complete the welding of whole piece weld seam.
To sum up, compare with existing welding preheating method, the utlity model has following advantage:
(1) this programme is fixed on induction heater and welding gun assembly on driving chassis transverse arm with the front and back position relationship, when the driving chassis advances along guide rail with speed of welding, induction heater and welding gun assembly advance with identical speed, preheating and welding are synchronously carried out, realize the automation of welding preheating procedure, an operator just can complete preheating and welding simultaneously, thereby can reduce working hour, greatly reduces production costs.
(2) this programme synchronously carries out preheating and welding, eliminates the stand-by period between preheating and welding, can effectively enhance productivity.
(3) heater remains consistent with welding gun assembly distance in welding process, and heating-up temperature and heating region are uniform and stable, have reduced welding deformation and welding stress, can effectively improve welding quality.
(4) this programme adopts induction heater to carry out eddy-current heating to weldment, because eddy-current heating is that steel are subject to electromagnetic induction generation induced-current and self-heating, do not need the heat conduction, need not to reserve too much loses heat, and the synchronous follow-up of welding, time between preheating and welding is short, and heat loss is few, and capacity usage ratio is high.
(5) this programme adopts induction heater to carry out eddy-current heating to weldment, can not produce and splash, but the security incidents such as burn, scald in the cancel job process is guaranteed operating personnel's production safety, improve operating environment; Can regulate induction heating current simultaneously, control heating-up temperature, satisfy the requirement of different welding procedures.
The above is only preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (11)
1. welder, it is characterized in that, comprise induction heater and welding gun assembly, described induction heater and welding gun assembly are set in turn in connecting elements along first direction, and the welding head of executing hot junction and described welding gun assembly of described induction heater arranges in the same way with respect to described connecting elements, and described first direction is that weld seam forms direction.
2. welder according to claim 1, is characterized in that, described induction heater has guard member, is provided with at least two group induction coils on described guard member.
3. welder according to claim 2, is characterized in that, is fixedly installed on described guard member and every group of lug boss that induction coil is corresponding, and described induction coil is surrounded on the root of corresponding described lug boss.
4. welder according to claim 3, is characterized in that, described guard member is specially tabular, and described lug boss is the strip that arranges along first direction.
5. welder according to claim 3, is characterized in that, described guard member is specially bending-like, and described lug boss is the strip that arranges along first direction, and is separately positioned on two plate faces of bending-like guard member.
6. the described welder of any one according to claim 2 to 5, is characterized in that, described guard member adopts glass fibre or heat-stable ceramic to make.
7. a welding equipment, is characterized in that, comprising:
Welder as described in any one in claim 1 to 6;
Drive chassis, can be along the first direction displacement; With
Transverse arm is arranged on described driving chassis and stretches in described driving chassis outside second direction; And
Described welder is arranged at the overhanging end of described transverse arm, and described second direction is vertical with described first direction.
8. welding equipment according to claim 7, is characterized in that, described transverse arm can be adjusted relative position with respect to described driving chassis along second direction and third direction respectively, and described third direction is all vertical with second direction with described first direction.
9. welding equipment according to claim 8, it is characterized in that, described welding gun assembly can be adjusted relative position with respect to connecting elements along second direction and third direction respectively, and described induction heater can be adjusted relative position with respect to connecting elements along second direction and third direction respectively.
10. the described welding equipment of any one according to claim 7 to 9, is characterized in that, also comprises two closed slides that are fixedly installed, and the driving wheel of described driving chassis and described closed slide are equipped with.
11. welding equipment according to claim 10 is characterized in that, also is provided with the source of welding current that supplies power to described weld assembly on described driving chassis, and the medium frequency induction power supply that supplies power to described induction heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601540 CN202934266U (en) | 2012-11-14 | 2012-11-14 | Welding device and welding equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220601540 CN202934266U (en) | 2012-11-14 | 2012-11-14 | Welding device and welding equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934266U true CN202934266U (en) | 2013-05-15 |
Family
ID=48318525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220601540 Withdrawn - After Issue CN202934266U (en) | 2012-11-14 | 2012-11-14 | Welding device and welding equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934266U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922184A (en) * | 2012-11-14 | 2013-02-13 | 徐州重型机械有限公司 | Welding device and welding equipment with same |
| CN106736119A (en) * | 2016-12-30 | 2017-05-31 | 安徽泰富重工制造有限公司 | One kind has adjustable for height welder |
| CN106794540A (en) * | 2014-10-14 | 2017-05-31 | 伊利诺斯工具制品有限公司 | Reduce the hybrid sensing heating/weld assembly of deformation |
| CN108927618A (en) * | 2018-10-09 | 2018-12-04 | 湖北天图桥梁技术研究有限公司 | A kind of silent floor element solder preheating device and the method for control welding thermal deformation |
| CN111162445A (en) * | 2019-12-31 | 2020-05-15 | 芯思杰技术(深圳)股份有限公司 | Welding method and welding apparatus |
| US11072035B2 (en) | 2010-05-21 | 2021-07-27 | Illinois Tool Works Inc. | Auxiliary welding heating system |
-
2012
- 2012-11-14 CN CN 201220601540 patent/CN202934266U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11072035B2 (en) | 2010-05-21 | 2021-07-27 | Illinois Tool Works Inc. | Auxiliary welding heating system |
| CN102922184A (en) * | 2012-11-14 | 2013-02-13 | 徐州重型机械有限公司 | Welding device and welding equipment with same |
| CN102922184B (en) * | 2012-11-14 | 2016-02-24 | 徐州重型机械有限公司 | Welding equipment |
| CN106794540A (en) * | 2014-10-14 | 2017-05-31 | 伊利诺斯工具制品有限公司 | Reduce the hybrid sensing heating/weld assembly of deformation |
| US10244588B2 (en) | 2014-10-14 | 2019-03-26 | Illinois Tool Works Inc. | Hybrid induction heating/welding assembly |
| US10440784B2 (en) | 2014-10-14 | 2019-10-08 | Illinois Tool Works Inc. | Reduced-distortion hybrid induction heating/welding assembly |
| US11172549B2 (en) | 2014-10-14 | 2021-11-09 | Illinois Tool Works Inc. | High-productivity hybrid induction heating/welding assembly |
| CN106794540B (en) * | 2014-10-14 | 2022-09-30 | 伊利诺斯工具制品有限公司 | Hybrid induction heating/welding assembly with reduced distortion |
| CN106736119A (en) * | 2016-12-30 | 2017-05-31 | 安徽泰富重工制造有限公司 | One kind has adjustable for height welder |
| CN108927618A (en) * | 2018-10-09 | 2018-12-04 | 湖北天图桥梁技术研究有限公司 | A kind of silent floor element solder preheating device and the method for control welding thermal deformation |
| CN108927618B (en) * | 2018-10-09 | 2024-01-26 | 湖北天图桥梁技术研究有限公司 | Welding preheating device for closed rib plate unit and method for controlling welding thermal deformation |
| CN111162445A (en) * | 2019-12-31 | 2020-05-15 | 芯思杰技术(深圳)股份有限公司 | Welding method and welding apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202934266U (en) | Welding device and welding equipment with same | |
| CN102922184B (en) | Welding equipment | |
| CN104070287A (en) | Method and device for restraining softening of high-strength aluminum alloy stirring friction welding joint | |
| CN102909479B (en) | Square long girder steel welding method | |
| CN102380688A (en) | Method and device for controlling welding hot cracking during welding by performing electromagnetic induction heating | |
| CN107877016B (en) | Steel butt-jointed induction heating-stirring friction composite welding method and device | |
| CN103170777A (en) | Metal pipe butt-joint circumferential seam heating device | |
| CN201792078U (en) | Device for controlling welding thermal crack by adopting electromagnetic induction heating while welding | |
| CN108705187A (en) | A kind of preheated weld equipment | |
| CN202261890U (en) | Preheating electromagnetic heater for welding steel plates | |
| CN207904327U (en) | A kind of membrane wall pipe row welding is in line preheating and rear heat-treating machine | |
| CN107124781A (en) | Large-scale voltage-stablizer cylinder inboard wall built-up welding electromagnetic-induction heating method | |
| AU2011258086A2 (en) | System and method for flash-welding | |
| CN107876963A (en) | Agitating friction mounted welder with heating function | |
| CN103128966B (en) | Welding method of polyethylene (PE) gas valve | |
| CN103801600A (en) | Continuous push type medium frequency heating bent pipe machining device and machining method | |
| CN105904063B (en) | forged steel piece welding method | |
| CN202668988U (en) | System for controlling vibration friction wielding machine with heating device | |
| CN207615858U (en) | Frequency Induction Heating welding machine | |
| CN209380132U (en) | A kind of preheating device for heat exchange pipe head welding | |
| CN203678955U (en) | Processing equipment for continuously-pushing type medium frequency heating elbow | |
| CN1613596A (en) | Double-tungsten argon arc preheating re-melting welder | |
| CN203316618U (en) | Automobile drive axle semi-finished product medium frequency induction heating device | |
| CN209062407U (en) | A kind of electromagnetic heating type packaged type positioner | |
| CN204019994U (en) | A kind of servicing unit of plastics pipe welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20160224 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |