CN101549439B

CN101549439B - Laser beam welding liner

Info

Publication number: CN101549439B
Application number: CN 200910098000
Authority: CN
Inventors: 董云常; 张建成; 金心溥
Original assignee: Xiangshan Welding Backing Factory
Current assignee: Xiangshan Welding Backing Factory
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2011-08-03
Anticipated expiration: 2029-04-30
Also published as: CN101549439A

Abstract

The present invention provides a laser beam welding liner, which comprises one or a plurality of ceramic liner blocks with weld seam forming groove disposed thereon, and fixing straps for connecting and fixing the plurality of liner blocks; the liner block contains the following ingredients in weight proportions of: CaCO3 2-4%, MgCO3 14-18%, TiO2 5%, SiO2 20-28%, ZrO2 4-6%, Al2O3 15-20%, MnO2 2-4% and binding agent 10-20%. The laser beam welding liner provided by the present invention can realize one-time formation, one-side welding and double-side welding of in the weld seam forming groove in laser beam welding process,; reduces processes, and improves efficiency.

Description

A kind of laser beam welding liner

Technical field

The present invention relates to the welding technique field, particularly relate to laser beam welding liner.

Background technology

Laser weld is a kind of high efficiency welding, using laser welding process builds boats and ships and has advantages such as welding quality height, welding efficiency extra-high-speed, welding cost are low, when laser weld, often need be after one side welds, steel plate is turned over, the part of the sealing run that just welded is dug, again this face is added weldering one time.The reason of doing like this is that the back side of welding point does not have media protection because during laser weld, causes peripheral pernicious gas invasion sealing run metal, influences weldquality.Also to dig seam and weldering reverse side owing to welded the front, influence the efficient of welding greatly.

Summary of the invention

Technical problem to be solved by this invention provides and a kind ofly can make the welding one-shot forming, makes things convenient for the laser beam welding liner of laser single welding, and for this reason, the present invention adopts following technical scheme:

It comprises one or more ceramic backing piece, and described spacer block is provided with the appearance of weld groove, and it also is provided with the fixed band that this polylith spacer block is played connection and fixation, and the weight of described spacer block consists of: CaCO ₃2～4%, MgCO ₃14～18%, TiO ₂5%, SiO ₂20～28%, ZrO ₂4～6%, Al ₂O ₃15～20%, MnO ₂2～4%, binding agent 10～20%.

By above technical scheme, the present invention can make laser weld one-shot forming in the appearance of weld groove, and the single-sided welding double-faced forming has reduced operation, has improved efficient.

Description of drawings

Fig. 1 is a ceramic welding backing piece profile schematic diagram

Fig. 2 uses schematic diagram for laser beam welding liner.

Fig. 3 is a laser beam welding liner profile schematic diagram.

The specific embodiment

The present invention be a kind of when the laser single welding matching used welding backing.

With reference to accompanying drawing 1,3, the present invention includes one or more ceramic backing piece 1, spacer block 1 is provided with appearance of weld groove 2, and spacer block 1 can connect into the strip liner and use, the liner length difference that the spacer block of varying number connects into.Appearance of weld groove 2 can also be painted the centering red line for easy to use.

In the time of the present invention's welding, can choose the different liner monomer thickness and the degree of depth and the width of appearance of weld groove according to steel plate thickness, welding point condition and the welding conditions of required welding.In general, in order to obtain reasonable effect, the width of spacer block 1 is 22～26mm, highly is that 8～12mm, length are 8～12mm.The degree of depth of appearance of weld groove 2 is 0.8～1mm, and width is the gap of required welding, and it is best that promptly the root gap of welding point adds the 3mm effect.

Ceramic backing piece 1, is burnt till through high temperature through batching, batch mixing, pugging compression moulding by solder flux, refractory material, flux, deoxidation material.After baking, by welding process requirement ceramic backing piece 1 is connected into certain-length and be mounted on the aluminium foil strip that scribbles pressure-sensitive adhesive layer, 4 pairs of ceramic backing pieces 1 of this aluminum foil and adhesive tape play and connect and fixation, are then packed in the polybag.Post separate paper 3 on the aluminum foil and adhesive tape 4, play a protective role.

The weight of liner monomer 1 consists of: CaCO ₃2～4%, MgCO ₃14～18%, TiO ₂5%, SiO ₂20～28%, ZrO ₂4～6%, Al ₂O ₃15～20%, MnO ₂2～4%, binding agent 10～20%.Described binding agent can be waterglass or starch, or other suitable species.Its operation principle is: in laser beam welding, in the time of laser beam heat melts steel plate welding point, also melt the surfacing of ceramic welding backing formation of lots groove, and it is suitable to make it be varied to the slag amount, has the welding slag of certain flowability.Suitable surface tension butt welded seam metal plays the effect of protection weld seam, makes with surrounding enviroment to completely cut off, and does not make environment harmful gas invade weld metal, thereby reaches intact moulding and the weldquality that guarantees sealing run.

Using method of the present invention may further comprise the steps:

1) the both sides separate paper 3 of the spacer block that connects is torn, the forming tank on the spacer block is aimed at the joint back gap center of required welding, if there is the centering red line just this red line to be aimed on the forming tank;

2) with reference to accompanying drawing 2.The spacer block upper surface that connects is adjacent to the welding point back side, and aluminum foil and adhesive tape 4 is attached to steel 5 surfaces of welding point both sides, aluminum foil and adhesive tape 4 is close to fully.

3) from having fixed the another side of liner monomer, promptly weld in the welding point front, promptly reaches the single-sided welding double-faced forming.

Claims

1. a laser beam welding liner is characterized in that it comprises one or more ceramic backing piece, and described spacer block is provided with the appearance of weld groove, and it also is provided with the fixed band that this polylith spacer block is played connection and fixation, and the weight of described spacer block consists of: CaCO ₃2～4%, MgCO ₃14～18%, TiO ₂5%, SiO ₂20～28%, ZrO ₂4～6%, Al ₂O ₃15～20%, MnO ₂2～4%, binding agent 10～20%, and above components contents sum is 100%.

2. a kind of laser beam welding liner as claimed in claim 1, the degree of depth that it is characterized in that described appearance of weld groove is 0.8～1mm.

3. a kind of laser beam welding liner as claimed in claim 1 is characterized in that the relief width 3mm of the width of described appearance of weld groove than required welding.

4. a kind of laser beam welding liner as claimed in claim 1, the width that it is characterized in that described spacer block are 22～26mm, highly are that 8～12mm, length are 8～12mm.

5. a kind of laser beam welding liner as claimed in claim 1 is characterized in that described fixed band is an aluminum foil and adhesive tape.

6. the using method of laser beam welding liner as claimed in claim 1 is characterized in that may further comprise the steps:

1) forming tank on the spacer block that connects is aimed at the joint back gap of required welding;

2) spacer block that connects fixedly is close on the joint back gap of required welding;

3) weld the single-sided welding double-faced forming from the joint front of required welding.