CN1651238A - Stainless steel double bottom utensil and its laser seamless closing welding double bottom processing method - Google Patents
Stainless steel double bottom utensil and its laser seamless closing welding double bottom processing method Download PDFInfo
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- CN1651238A CN1651238A CN 200510032994 CN200510032994A CN1651238A CN 1651238 A CN1651238 A CN 1651238A CN 200510032994 CN200510032994 CN 200510032994 CN 200510032994 A CN200510032994 A CN 200510032994A CN 1651238 A CN1651238 A CN 1651238A
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Abstract
A stainless steel utensil with composite bottom is composed of a basic stainless steel body, a low-temp heat absorbing metal plate and external stainless steel bottom plate. Said heat absorbing metal plate is between basic body and bottom plate. The method for making said composite bottom includes soldering and seamless laser welding.
Description
Technical field
The present invention relates to a kind of stainless steel double bottom utensil and laser seamless closing welding double bottom processing method thereof.
Background technology
Raising along with living standards of the people, to the high-grade stainless steel pot, the demand of double bottom utensils such as dish class constantly increases, the tradition stainless steel double bottom utensil is by the stainless steel ware matrix, interior folder aluminium flake, soldering forms or by the stainless steel ware matrix at the bottom of the stainless ladle, interior folder copper sheet, soldering forms at the bottom of the stainless ladle, existing problems are: the stainless steel ware matrix of traditional stainless steel double bottom utensil is with after aspect soldering at the bottom of the stainless ladle combines, the seam that does not connect is arranged, not attractive in appearance, as the product dry combustion method about 450～500 ℃, product and bottom welding position will come off naturally, and, there is the seam that does not connect also to gather dirt, breed bacteria easily.
Summary of the invention
The purpose of this invention is to provide a kind of seamless stainless steel double bottom utensil and laser seamless closing welding double bottom processing method thereof.
The object of the present invention is achieved like this, constitute by stainless steel ware matrix, low temperature heat absorption metal material sheet and stainless ladle egative film, be sandwiched between stainless steel ware matrix and the stainless ladle egative film in the low temperature heat absorption metal material sheet, the joint portion of stainless steel ware matrix and stainless ladle egative film is welded to connect by laser seamless closing, connects as one by multiple end soldering between stainless steel ware matrix, low temperature heat absorption metal material sheet and the stainless ladle backsheet layer face.
The material that low temperature heat absorption metal material sheet of the present invention adopts can be a Zn-base alloy, and its percentage composition is: zinc content: 60～70%, and aluminium content: 25～35%, surplus is other trace alloying element.
The two ends of low temperature heat absorption metal material sheet of the present invention can be the planes, and the surface is coated with the brazing layer of the plumbous agent material of 0.2～0.3mm.
The present invention, its laser seamless closing welding double bottom processing method comprises following operation:
1, to the laser seamless closing welding sequence of the joint portion of stainless steel ware matrix, two workpiece of stainless ladle egative film;
2, stainless steel ware matrix, face are covered the low temperature heat absorption metal material sheet of brazing layer, three workpiece heating of stainless ladle egative film, make it in conjunction with aspect integrally welded multiple end soldering operation under the effect of cored solder.
The present invention, the laser seamless closing welding sequence is:
A, the stainless ladle egative film of stainless steel ware matrix, interior folder low temperature heat absorption metal material sheet is placed on the automatic rotation welding tooling;
B, with CO
2Laser focused is in the joint portion of stainless steel ware matrix, two workpiece of stainless ladle egative film, with CO
2Laser power arranges 5KW, and speed of welding 4.7～6mm/s welds;
The present invention, multiple end soldering operation is:
The workpiece that C, laser seamless closing welding sequence are finished places multiple end solderer to load onto;
D, use 55KW soldering machine of the multiple end, heating arranges 300～350 ℃ of low temperature for the first time, heats for the second time 6～9 seconds heat time heating times, arranges 450～500 ℃ of low temperature, 6～9 seconds heat time heating times, arranges cool time 20～25 seconds; Then, open heating system,, make it integrally welded under the effect of cored solder in conjunction with aspect to stainless steel ware matrix, low temperature heat absorption metal material sheet, three workpiece heating of stainless ladle egative film;
The present invention also comprises follow-up sanding and polishing operation:
E, employing belt sanding machine equipment, the abrasive band granularity is No. 320 or No. 600, to the joint portion of stainless steel ware matrix, two workpiece of stainless ladle egative film, carries out surfacing and handles, and makes its appearance and stainless steel ware matrix form one, solderless crack directly perceived;
F, its product is carried out surface finish handle.
The present invention compared with prior art, its beneficial effect is:
1, traditional product continues traditional soldering plane welding procedure substantially, and the joint portion of two workpiece does not process; The invention reside in the stainless steel ware matrix and stainless ladle back welding connects the position, adopt CO
2Laser sealing welding procedure, make two workpiece by solder bond all-in-one-piece product, from can't see weld mark in appearance, thereby make product external attractive in appearance on, a kind of tight sensation is arranged on the reverie to product, not only change the view of people, and eliminate not connect and stitch the defective of gathering dirt, breed bacteria easily similar traditional product.
2, traditional like product adopts stainless steel, aluminium, stainless steel is welded or stainless steel, copper, stainless steel welding method; This product adopts stainless steel ware matrix, zinc-containing alloy, stainless ladle egative film, utilize plumbous material extrusion to process by equipment of the multiple end of soldering, the domestic manufacturing enterprise of going together does not also adopt the processing technology of stainless steel ware matrix, Zn-base alloy, stainless ladle egative film.
3, be to be main body owing to using the internal memory material with Zinc material, the molten point of zinc: 419.58, the molten point of aluminium: 660.37, the molten molten point of zinc far below aluminium, so its heat absorption usefulness is far above the heat absorption usefulness of aluminium, so this product aspect energy-conservation, improves 12～18% than like product heat absorption usefulness.
4, owing to use secondary welding technology, especially CO
2Laser weld makes this product under 900 ℃ of left and right sides high temperature dry-fire condition, and this product only can produce the matrix distortion, and the bottom can not come off; And similar other products dry combustion method is about 450～500 ℃, and product and bottom welding position will come off naturally.
5, owing to use the zinc-base material, and replace aluminum alloy materials, no matter on material cost, still on energy-conservation expense, all be more suitable for market comsupton, easier by market by being subjected to.
The present invention is further illustrated for following embodiment accompanying drawings.
Description of drawings
Fig. 1 is the perspective view of embodiments of the invention 1;
Fig. 2 is the G portion structure enlarged diagram of Fig. 1 embodiment 1.
Among the figure, 1, the stainless-steel pan matrix, 2, low temperature heat absorption metal material sheet, 3, stainless ladle egative film, 4, the joint portion, 5,6, brazing layer.
The specific embodiment
Embodiment 1: the stainless steel composite bottom boiler
With reference to Fig. 1, Fig. 2, present embodiment 1 is made of stainless-steel pan matrix 1, low temperature heat absorption metal material sheet 2 and stainless ladle egative film 3, be sandwiched between stainless-steel pan matrix 1 and the stainless ladle egative film 3 in the low temperature heat absorption metal material sheet 2, the joint portion 4 of stainless-steel pan matrix 1 and stainless ladle egative film 3 is welded to connect by laser seamless closing, connects as one by multiple end soldering between stainless-steel pan matrix 1, low temperature heat absorption metal material sheet 2 and stainless ladle egative film 3 aspects; The material that low temperature heat absorption metal material sheet adopts is a Zn-base alloy, and its percentage composition is: zinc content: 65%, and aluminium content: 30%, other trace alloying element is generally: copper, cadmium, magnesium, cobalt etc. totally 5%; The two ends of low temperature heat absorption metal material sheet 2 are the plane, and the surface is coated with the brazing layer 5,6 of the plumbous agent material of 0.25mm.
Embodiment 2: the laser seamless closing welding double bottom processing method of stainless steel composite bottom boiler
1, adopts CO
2Laser instrument, to the laser seamless closing welding sequence of the joint portion of stainless-steel pan matrix, two workpiece of stainless ladle egative film:
A, by hydraulic tensioning machine equipment and mechanical pressure machine equipment machine-shaping stainless-steel pan and stainless ladle egative film;
B, according to the shape of stainless-steel pan and stainless ladle egative film, process automatic rotation welding tooling;
C, the stainless ladle egative film of stainless-steel pan matrix, interior folder low temperature heat absorption metal material sheet is placed on the automatic rotation welding tooling;
D, with CO
2Laser focused is in the joint portion of stainless-steel pan matrix, two workpiece of stainless ladle egative film, with CO
2Laser power arranges 5KW, and speed of welding 5mm/s welds;
2, stainless-steel pan matrix, face are covered the low temperature heat absorption metal material sheet of brazing layer, three workpiece heating of stainless ladle egative film, make it in conjunction with aspect integrally welded multiple end soldering operation under the effect of cored solder:
The workpiece that E, laser seamless closing welding sequence are finished places multiple end solderer to load onto;
F, use 55KW soldering machine of the multiple end, heating arranges 320 ℃ of low temperature for the first time, heats for the second time 7 seconds heat time heating times, arranges 480 ℃ of low temperature, 8 seconds heat time heating times, arranges cool time 25 seconds; Then, open heating system,, make it integrally welded under the effect of cored solder in conjunction with aspect to stainless-steel pan matrix, low temperature heat absorption metal material sheet, three workpiece heating of stainless ladle egative film;
3, follow-up sanding and polishing operation:
G, employing belt sanding machine equipment, the abrasive band granularity is No. 600, to the joint portion 4 of stainless-steel pan matrix, two workpiece of stainless ladle egative film, carries out surfacing and handles, and makes its appearance and stainless-steel pan matrix 1 form one, solderless crack directly perceived;
H, its product is carried out surface finish handle.
Claims (7)
1, a kind of stainless steel double bottom utensil, it is characterized in that: constitute by stainless steel ware matrix, low temperature heat absorption metal material sheet (2) and stainless ladle egative film (3), be sandwiched between stainless steel ware matrix and the stainless ladle egative film (3) in the described low temperature heat absorption metal material sheet (2), the joint portion (4) of described stainless steel ware matrix and stainless ladle egative film (3) is welded to connect by laser seamless closing, connects as one by multiple end soldering between described stainless steel ware matrix, low temperature heat absorption metal material sheet (2) and stainless ladle egative film (3) aspect.
2, stainless steel double bottom utensil according to claim 1, it is characterized in that: the material that described low temperature heat absorption metal material sheet adopts is a Zn-base alloy, its percentage composition is: zinc content: 60～70%, and aluminium content: 25～35%, surplus is other trace alloying element.
3, stainless steel double bottom utensil according to claim 1 and 2 is characterized in that: its two ends of described low temperature heat absorption metal material sheet (2) are the plane, and the surface is coated with the brazing layer (5,6) of the plumbous agent material of 0.2～0.3mm.
4, a kind of laser seamless closing welding double bottom processing method of stainless steel double bottom utensil is characterized in that: comprise following operation:
1), to the laser seamless closing welding sequence of the joint portion of stainless steel ware matrix, two workpiece of stainless ladle egative film;
2), stainless steel ware matrix, face are covered the low temperature heat absorption metal material sheet of brazing layer, three workpiece heating of stainless ladle egative film, make it in conjunction with aspect integrally welded multiple end soldering operation under the effect of cored solder.
5, the laser seamless closing welding double bottom processing method of stainless steel double bottom utensil according to claim 4 is characterized in that: described laser seamless closing welding sequence is:
A, the stainless ladle egative film of stainless steel ware matrix, interior folder low temperature heat absorption metal material sheet is placed on the automatic rotation welding tooling;
B, with CO
2Laser focused is in the joint portion of stainless steel ware matrix, two workpiece of stainless ladle egative film, with CO
2Laser power arranges 5KW, and speed of welding 4.7～6mm/s welds;
6, according to the laser seamless closing welding double bottom processing method of claim 4 or 5 described stainless steel double bottom utensils, it is characterized in that: described multiple end soldering operation is:
The workpiece that C, laser seamless closing welding sequence are finished places multiple end solderer to load onto;
D, use 55KW soldering machine of the multiple end, heating arranges 300～350 ℃ of low temperature for the first time, heats for the second time 6～9 seconds heat time heating times, arranges 450～500 ℃ of low temperature, 6～9 seconds heat time heating times, arranges cool time 20～25 seconds; Then, open heating system,, make it integrally welded under the effect of cored solder in conjunction with aspect to stainless steel ware matrix, low temperature heat absorption metal material sheet, three workpiece heating of stainless ladle egative film;
7, the laser seamless closing welding double bottom processing method of stainless steel double bottom utensil according to claim 6 is characterized in that: also comprise follow-up sanding and polishing operation:
E, employing belt sanding machine equipment, the abrasive band granularity is No. 320 or No. 600, to the joint portion of stainless steel ware matrix, two workpiece of stainless ladle egative film, carries out surfacing and handles, and makes its appearance and stainless steel ware matrix form one, solderless crack directly perceived;
F, its product is carried out surface finish handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100329946A CN1323830C (en) | 2005-02-01 | 2005-02-01 | Stainless steel double bottom utensil and its laser seamless closing welding double bottom processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100329946A CN1323830C (en) | 2005-02-01 | 2005-02-01 | Stainless steel double bottom utensil and its laser seamless closing welding double bottom processing method |
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| Publication Number | Publication Date |
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| CN1651238A true CN1651238A (en) | 2005-08-10 |
| CN1323830C CN1323830C (en) | 2007-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100329946A Expired - Fee Related CN1323830C (en) | 2005-02-01 | 2005-02-01 | Stainless steel double bottom utensil and its laser seamless closing welding double bottom processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574247A (en) * | 2009-10-26 | 2012-07-11 | （株）庆东Navien | Stainless steel joining method |
| CN102896385A (en) * | 2012-09-10 | 2013-01-30 | 宁波五谷金属制品有限公司 | Braze welding technique |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314137C2 (en) * | 1993-04-30 | 1996-10-17 | Protechna Sa | Transport and storage containers made of sheet metal for liquids |
| DK134793D0 (en) * | 1993-12-02 | 1993-12-02 | Maersk Container Ind As | COOLING CONTAINER |
-
2005
- 2005-02-01 CN CNB2005100329946A patent/CN1323830C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574247A (en) * | 2009-10-26 | 2012-07-11 | （株）庆东Navien | Stainless steel joining method |
| CN102896385A (en) * | 2012-09-10 | 2013-01-30 | 宁波五谷金属制品有限公司 | Braze welding technique |
| CN102896385B (en) * | 2012-09-10 | 2015-07-08 | 宁波五谷金属制品有限公司 | Braze welding technique |
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| Publication number | Publication date |
|---|---|
| CN1323830C (en) | 2007-07-04 |
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