CN101524780A - Method for evenly heating weldment with uneven wall thickness during furnace welding - Google Patents
Method for evenly heating weldment with uneven wall thickness during furnace welding Download PDFInfo
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- CN101524780A CN101524780A CN200710305383A CN200710305383A CN101524780A CN 101524780 A CN101524780 A CN 101524780A CN 200710305383 A CN200710305383 A CN 200710305383A CN 200710305383 A CN200710305383 A CN 200710305383A CN 101524780 A CN101524780 A CN 101524780A
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Abstract
The invention relates to a method for evenly heating a weldment with uneven wall thickness during furnace welding, which is characterized in that the wall thickness of a thin-wall part of the weldment is indirectly increased by covering a welding auxiliary mould on the thin-wall part of the weldment with uneven wall thickness. The invention adopts a novel welding technical method that before the weldment with uneven wall thickness enters a welding furnace for heating, the welding auxiliary mould made of the same material as the weldmen is covered on the thin-wall part of the weldment to make the total thickness of the thin-wall part of the weldment and the wall of the welding auxiliary mould equal to the thickness of a part without any the welding auxiliary mould on the weldment to ensure that the weldment with uneven wall thickness can be evenly heated in the welding furnace. Therefore, the method can improve the quality of the weldment and reduce the deformation of the weldment. The concrete embodiment is shown in an appended figure in the abstract, wherein 1, the weldment with uneven wall thickness; 2, a thick-wall part; 3, a thin-wall part; 4, a welding auxiliary mould; and 5, a welding auxiliary mould II.
Description
One, technical field
The present invention is in order to guarantee to make the process of the even weldment thermally equivalent of wall unevenness in the stove weldering, can to make weldment thermally equivalent or cooling in brazier of different wall, avoiding weldment to produce the concentrated and distortion of stress owing to wall unevenness is even.
Two, background technology
Stove weldering at present has been a kind of in the welding of weldment disposable integral, relatively Chang Yong welding method.It can guarantee that weldment the time avoids because local too being heated produces the concentrated harm that is caused of big stress in welding, it is the commissure that scolder directly is coated in weldment before weldment is gone into the stove heating, by the gradually thermally equivalent of whole weldment in stove, solder fusing is flow in the weld seam, after furnace temperature reduction scolder solidifies, make between the weldment and fuse, realize the purpose of welding, because weldment is whole and scolder heats simultaneously, the generation that therefore can avoid the big stress in welding position to concentrate.
But, if the wall thickness variation of the different welding assemblies of weldment is very big, when weldment heats in brazier, will be owing to wall thickness inhomogeneous, make weldment when being heated or cool off, produce stress and concentrate, and along with the increase of wall thickness variation, the stress that is produced is concentrated and also can be increased thereupon, so just can not effectively guarantee the quality of welding to cause the distortion of weldment.
Three, summary of the invention
1, technical problem
The present invention provides a kind of welding technique that makes the even weldment thermally equivalent of wall unevenness in the stove weldering.
2, technical scheme
The welding technique that the present invention solves its technical problem is: on the thin parts of wall of the even weldment of wall unevenness, by covering the method for the welding auxiliary mould made from the weldment same material, increase the wall thickness of the thin parts of weldment wall indirectly, make the wall thickness of the thin parts of weldment wall add that the wall thickness of welding auxiliary mould is identical with the wall thickness that does not use welding auxiliary mould parts, requiring the thin parts of welding auxiliary mould and weldment wall to be critical to connect airtight simultaneously touches, the melting temperature of welding auxiliary mould and weldment material will be higher than the temperature in the brazier, like this when weldment heats in brazier, because the effect of welding auxiliary mould, will make the weldment thermally equivalent of forming by the different parts of wall thickness, can avoid difference owing to the weldment wall thickness to cause inhomogeneous that weldment is heated.
The invention has the beneficial effects as follows and overcome the inhomogeneities that the weldment be made up of the different wall parts in the stove weldering is heated, effectively guaranteed the thermally equivalent of weldment, reduce the generation that stress is concentrated in the welding, improve the quality of welding, guarantee the dimensional accuracy of welding, reduce the dimension correction after the welding, improved production efficiency.
Four, description of drawings
Fig. 1 does not adopt the weldment assembled front view of being made up of the even parts of wall unevenness of the present invention.
Fig. 2 is the weldment assembled front view of being made up of the even parts of wall unevenness that adopts welding auxiliary mould among the present invention.
Fig. 3 is the cut-away view of the welding auxiliary mould that uses among Fig. 2 embodiment.
Fig. 4 is the I-I cutaway view that Fig. 3 is welded auxiliary mould.
The even weldment of 1. wall unevennesses among the figure, 2. thick walled part, 3. thin wall component, 4. welding auxiliary mould I, 5. welding auxiliary mould II
Five, specific embodiments
The even weldment 1 of wall unevenness is assemblied by thin wall component 3 and thick walled part 2 among Fig. 1, by at thin wall component 3 and thick walled part 2 surperficial junction solder-coatings, sintering in brazier makes solder fusing and flows into weld seam, scolder solidifies after cooling off, and thin wall component 3 and thick walled part 2 are become one.This way makes weldment 1 in when cooling easily, because cooling velocity different are concentrated and produce stress, causes the weldment size to change between thin wall component 3 and thick walled part 2, weldment occurs and is out of shape.
At above-mentioned situation, the present invention adopts a kind of new welding technique shown in Figure 2, the Combination Welding auxiliary mould that forms in thin wall component 3 surface coverage welding auxiliary mould I as shown in Figure 3 and welding auxiliary mould II common combination, make thin wall component 3 wall thickness add that Combination Welding auxiliary mould wall thickness is identical with thick walled part 2 wall thickness on the weldment 1, send in the stove when weldment 1 like this and heat, melt gradually at scolder and to enter weld seam and weldment 1 slowly carries out in the process of air cooling, because the building block 2 of weldment 1,3 wall thickness is identical, therefore, the cooling velocity of weldment will be very even, stress can not occur and concentrate, weldment just can not deform.
Claims (5)
1. one kind makes wall unevenness spare the method for weldment thermally equivalent in the stove weldering, it mainly is to enter in the brazier before the heating at the even weldment of wall unevenness, at weldment surface coverage welding auxiliary mould, guarantee weldment thermally equivalent in brazier that wall unevenness is even by covering the welding auxiliary mould, it is characterized in that: on the thin wall component of the even weldment of wall unevenness, by covering the method for welding auxiliary mould, increase the wall thickness of weldment thin wall component indirectly.
2. the method that makes the even weldment thermally equivalent of wall unevenness in stove weldering according to claim 1 is characterized in that: the wall thickness of weldment thin wall component add the welding auxiliary mould wall thickness will with weldment on use the wall thickness of welding auxiliary mould parts identical.
3. the method that makes the even weldment thermally equivalent of wall unevenness in the stove weldering according to claim 1 is characterized in that: the welding auxiliary mould will closely contact with the weldment thin wall component.
4. the method that makes the even weldment thermally equivalent of wall unevenness in the stove weldering according to claim 1, it is characterized in that: the welding auxiliary mould is identical with the weldment material.
5. the method that makes the even weldment thermally equivalent of wall unevenness in the stove weldering according to claim 1, it is characterized in that: the melting temperature of welding auxiliary mould and weldment material will be higher than the temperature in the brazier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710305383A CN101524780A (en) | 2007-12-25 | 2007-12-25 | Method for evenly heating weldment with uneven wall thickness during furnace welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710305383A CN101524780A (en) | 2007-12-25 | 2007-12-25 | Method for evenly heating weldment with uneven wall thickness during furnace welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101524780A true CN101524780A (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710305383A Pending CN101524780A (en) | 2007-12-25 | 2007-12-25 | Method for evenly heating weldment with uneven wall thickness during furnace welding |
Country Status (1)
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| CN (1) | CN101524780A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763073A (en) * | 2019-11-05 | 2020-02-07 | 山东钢铁集团日照有限公司 | Method for solving uneven heat exchange of water jacket type vertical pipe heat exchanger |
| CN110996232A (en) * | 2019-11-22 | 2020-04-10 | 歌尔股份有限公司 | Sound generating device monomer and electronic equipment |
-
2007
- 2007-12-25 CN CN200710305383A patent/CN101524780A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763073A (en) * | 2019-11-05 | 2020-02-07 | 山东钢铁集团日照有限公司 | Method for solving uneven heat exchange of water jacket type vertical pipe heat exchanger |
| CN110996232A (en) * | 2019-11-22 | 2020-04-10 | 歌尔股份有限公司 | Sound generating device monomer and electronic equipment |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090909 |