CN102962579A - Explosion welding method of zirconium-steel composite steel plate - Google Patents
Explosion welding method of zirconium-steel composite steel plate Download PDFInfo
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- CN102962579A CN102962579A CN 201210344475 CN201210344475A CN102962579A CN 102962579 A CN102962579 A CN 102962579A CN 201210344475 CN201210344475 CN 201210344475 CN 201210344475 A CN201210344475 A CN 201210344475A CN 102962579 A CN102962579 A CN 102962579A
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Abstract
The invention relates to an explosion welding method of a zirconium-steel composite steel plate. The explosion welding method is characterized by comprising the following steps of base material treatment, composite material treatment, brushing and pairing, explosion compounding, repair welding, heat treatment and subsequent treatment. The method provided by the invention has the advantages that a zirconium plate and an ordinary steel plate can be effectively compounded, so the required intensity is realized on the premise that the composite steel plate has all advantages of the zirconium plate, so the use consumption of expensive metal is saved. Meanwhile, the product provided by the method has high welding quality, the long-period stable use is ensured, and the falling cannot occur.
Description
Technical field
What the present invention relates to is the metallic explosive complex method.
Background technology
Composite metal plate generally is comprised of two parts, the one, base material is ordinary carbon steel, the 2nd, multiple material is expensive alloy, if use the not only cost increase of pure material, and will cause the passage of more domestic rare metal mineral resources, therefore ordinary carbon steel and expensive steel alloy are manufactured the composite metal plate use by explosion welding technique, it can not only satisfy the requirement of strength under the certain condition, also can satisfy the corrosion-resistant requirement of special occasions.
Domestic present production composite plate has two kinds of forms, and the one, it is compound to explode, and another kind is exactly rolling.Explosion welding technique is the high-voltage pulse load that produces by explosive detonation, promote the another kind of material (base material) of a kind of material (multiple material) high speed inclined impact, its loading stress is higher than the yield strength of metal material far away, the moment property of loading procedure (being generally trace level), the locality of material stand under load, interweaving occurs in the small adjacent domain of application point and the mode such as mobile at high speed, realizes the metallurgical binding of two kinds of metals, and the land is rendered as wavy metallurgical binding.Explosive welding is again the new and high technology a kind of of great practical value of carrying out the intermetallic welding and producing metallic composite as the energy with explosive.Its maximum characteristics are with metallic combination, to weld together in moment simple, rapid and strongly.The advantage of comparing explosion welding technique with solder technology such as rolling, built-up welding, casting is:
The solderability of adaptability for materials is applicable to most ductile metal or alloy widely; Especially for the welding of large-area metal, can be described as unique method of attachment; Be not only applicable to the combination of intermiscibility metal, and be applicable to the combination of non-intermiscibility metal, be applicable to easily produce metal and the alloy of compound between brittle metal yet; Have good thermal conductivity, low interface resistance, the land consists of good joint performance without the heat affected area, and the thermal process of moment does not have the interface or a small amount of dissolving is only arranged.
Summary of the invention
The purpose of this invention is to provide the explosion welding method of a kind of zirconium-steel clad steel plate to remedy the deficiency of prior art.
The object of the present invention is achieved like this: the explosion welding method of zirconium-steel clad steel plate is characterized in that: may further comprise the steps:
A, base material treatment: smoothing makes steel plate unevenness＜5mm/m; And justifying face≤10mm/ total length or overall with; Tube sheet plate face unevenness＜1.5mm/m; And justifying face≤2.5mm/ total length or overall with; Steel plate is set level again, used emery wheel to polish, remove surface irregularities, make any surface finish, smooth, surface roughness is Ra12.5 μ m, and it is bright and clean to carry out rubbing down again;
B, multiple material are processed: the plate face unevenness＜5mm/m that guarantees the zirconium plate; And justifying face≤10mm/ total length or overall with; Tube sheet plate face unevenness＜1.5mm/m; And justifying face≤2.5mm/ total length or overall with; Set level again, use abrasive band or impeller bright and clean along the length polishing;
C, brushing and pairing: the zirconium plate is coated with brushes multiple material protective agent, then with the steel plate pairing, place by interruption between zirconium plate and the steel plate after the pairing, avoid direct friction and damage zirconium plate surface;
D, the blast compound: steel plate is set level, and the zirconium plate is parallel placement thereon, and at the even explosive of zirconium plate outer surface, by cap sensitive, the explosion velocity of explosive is 1.8 * 10
3-2.2 * 10
3M/s, brisance are that 6-10mm, density are 0.6g/cm
3-0.85g/cm
3, under high brake pressure, the surface of zirconium plate and steel plate just bonds together firmly;
E, subsequent treatment: the steel plate after compound of will exploding gets product after through repair welding, smoothing, side cut, machine glazed finish.
The explosion welding method of described zirconium-steel clad steel plate is characterized in that: when making multiple material and process, during zirconium plate thickness 〉=5mm, periphery should be slotted.
The explosion welding method of described zirconium-steel clad steel plate is characterized in that: when zirconium plate undersized, weld before processing and splice making multiple material.
The explosion welding method of described zirconium-steel clad steel plate is characterized in that: described multiple material protective agent is waterglass, and its concentration (° Be) is 16-20.
Good effect of the present invention is: the method that the present invention passes through, can be effectively that zirconium plate and general steel plate is compound, thus guaranteeing that clad steel plate has under the prerequisite of all advantages of zirconium, had the intensity of needs, thus the use amount of expensive metal saved.The very high welding quality of product tool that while this method provides guarantees that steady in a long-term the use can not come off.
The invention will be further described below by embodiment:
The specific embodiment
Embodiment:
The base material technology for blanking:
Steel plate should have quality certificate, indicates clear; The steel plate that material has ultrasound detection to require should be qualified through ultrasound detection as requested; The grade of steel of material, specification, examination of materials numbering should be consistent with the follow-up of quality card.
By the specification line that feeds intake, the angle that should guarantee steel plate four limit dimension lines during line is the right angle.The length of steel plate and width difference are 0-5mm, and the diagonal error is not more than 3mm.
Check the surface quality of steel plate, if find should in time process when surface of steel plate has mass defect qualified.
Carry out gas cutting by line and shear, allow to stay an amount of reconditioning surplus, deburr and slag after shearing, cut surface should be vertical with steel plate surface.Smooth bright and clean.Must not scab, the defectives such as zigzag, pit, when defects occurring, allow reconditioning smooth to reach cutting surfaces.
Should smooth when steel plate face unevenness 〉=5mm/m or justifying face＞10mm/ total length (wide), after smoothing the unevenness of steel plate face should＜5mm/m, and justifying face≤10mm/ total length (wide).
Clad tubesheet should be smoothed during with steel plate face unevenness 〉=1.5mm/m or justifying face＞2.5mm/ total length (wide), after smoothing the unevenness of steel plate face should＜1.5mm/m, and justifying face≤2.5mm/ total length (wide).
Multiple material technology for blanking:
Check material, the specification of zirconium plate.When if the zirconium plate need to splice, its splicing requires as follows: when the width of zirconium plate need to splice, the splicing width dimensions 〉=300mm of zirconium plate in the time can not satisfying, spliced the width minimum dimension and answers＞250mm in principle; When the length of zirconium plate need to be spliced, answered≤L/4 position of center line (L is zirconium plate total length) the splicing welding joint position of zirconium plate.Assembling and spot welding should adopt the welding rod with product welding same model, specification, every 100mm spot welding a bit, and the about 4-6mm of spot welding length.Grinding and buffing weld seam again.
Unreel front cleaning roll-type purl machine, the foreign material that the equipment such as plate shearing machine are inside and outside and dust.And the roller of wiping roll-type purl machine, if will polish smooth with crocus cloth when feel is rough, use wooden stick when unreeling and transmit, prevent zirconium plate surface tear.
Shear is sheared by line, keeps line, again deburring.Plasma cutting keeps line by the line cutting, removes slag, and with grinder buffing scarfing acute angle.
When zirconium plate thickness 〉=5mm, periphery should be slotted: because multiple material is in compound, under the effect of powerful impulsive force, the edge of multiple material can be sheared under the effect of shearing force and come off, and the end face of that multiple material and base material will be concordant, when the thickness of multiple material is larger, shearing force is not enough to reach requirement, will affect the edge quality of composite plate, in order to be effective, just can be at the desired location fluting in order to come off smoothly.Groove is processed at planer or lathe; If with the carbon arc air gouging fluting, should guarantee the notch size as far as possible.Should be coated with the anti-coating that splashes before the gouge, answer splash and the oxide of sand milling both sides behind the gouge.
Smoothing: the plate face unevenness 〉=5mm/m of zirconium plate or and should smooth plate face after smoothing during justifying face＞10mm/ total length (wide); Unevenness＜5mm/m; And justifying face≤10mm/ total length (wide);
Clad tubesheet should be smoothed during with steel plate face unevenness 〉=1.5mm/m or justifying face＞2.5mm/ total length (wide) with plate face clad tubesheet, after smoothing the unevenness of steel plate face should＜1.5mm/m, and justifying face≤2.5mm/ total length (wide).
The base material technique for grinding:
The buffed surface of steel plate composite surface is wanted evenly not allowed oxide skin, pit.The defectives such as pit, and to guarantee steel plate thickness.
Thick polishing is with No. 36 grinding wheels when 60mm (steel plate thickness＜) or No. 24 grinding wheels when 60mm (steel plate thickness 〉=), and discovery oxide skin, pit, pit and polishing when inhomogeneous when slightly polishing polished after should in time processing again; Should in time remove the abrasive dust on polishing surface after after the thick polishing.The foreign material such as oxide skin, laying dust.
The essence polishing should in time be removed the foreign material such as the surperficial iron filings of polishing, laying dust with No. 60 grinding wheels after the smart polishing; Buffed surface after the smart polishing is smooth, bright and clean.Its surface roughness Ra 12.5 μ m.
It is bright and clean that steel plate face after the polishing carries out rubbing down uniformly with stainless steel wire wheel.
Multiple material technique for grinding:
It is bright and clean that the polishing of zirconium plate adopts abrasive band or impeller to polish along the length direction, if can adopt the abrasive band to polish when zirconium plate surface defectiveness need to be polished.
Polishing is wanted evenly not allow the defectives such as oxide skin, pit, pit to occur, the thickness of the multiple material of revisal zirconium plate.Should in time remove the foreign material such as the surperficial abrasive dust of polishing, laying dust after the polishing.
The multiple material surface of zirconium plate after the polishing should be smooth, presents metallic luster.
Multiple material protective agent brushing technique:
Substrate of steel plate and the multiple material of zirconium plate are matched, and again with zirconium plate external coating waterglass, its concentration (° Be) is 16-20, and the foam brush or the spray gun that are coated with waterglass must keep clean.Explode compound before, should strictly control the intermittence between base material and the multiple material, guarantee composite quality.
It is compound to explode: steel plate is set level, and the zirconium plate is parallel placement thereon, and at the even explosive of zirconium plate outer surface, the explosion velocity of explosive is 1.8 * 10
3-2.2 * 10
3M/s, brisance are that 6-10mm, density are 0.6g/cm
3-0.85g/cm
3, by cap sensitive, the heat energy that produces under high explosion velocity just bonds together the surface of zirconium plate and steel plate firmly.
Repair welding:
The compound rear Surface Defects in Steel Plate degree of depth is no more than the defective partly of composite plate tolerance and should give polishing smoothly; The defective partly that surpasses the composite plate tolerance be should give repair welding.
Treating to brush the anti-coating that splashes around the repair welding district in the 100mm scope, on the carbon arc air gouging direction, except adopting the anti-coating that splashes, the Ying Zuofang dividing plate that splashes also, the splash damage plate surface when not allowing gouge.With carbon arc air gouging will be not the multiple layer of bound fraction remove, then with emery wheel will the gouge surface around polishing clean, and basic unit ground off 0.5-1mm, grind 50-60 degree oblique angle on every side.Then according to the regulation welding of " stainless compound steel plate welding procedure rules ", should adopt Φ 2.5mm welding rod and little electric current to connect a circle along melt run after the repair welding of multiple layer, to reduce the depression at melt run place.
Repair welding place is smooth with emery wheel corase grind first after the repair welding, then with the sand ribbon polishing, last repair welding place and around in the 100mm scope, should be through UT and PT passed examination.
Smoothing, trimming technology:
The upwards back and forth roll-in smoothing on seven roller levelling machines or three rolls plate bending machine of the multiple layer of composite plate is rule after reaching requirement, shears (composite plate thickness≤20mm) or plasma cutting (composite plate thickness＞20mm) by line again; The peripheral cut surface of composite plate four (circle) should be vertical with the plate face, and the defectives such as the peripheral cut surface of composite plate four (circle) should be smooth, smooth, must not scab, zigzag, pit, if there is defects to allow reconditioning to reach requirement.
Mechanical polishing process:
Get product after using impeller that the composite plate multi-layer surface is polished, the continuous mill line of clad surface must be consistent after the polishing.
Claims (4)
1. the explosion welding method of zirconium-steel clad steel plate is characterized in that: may further comprise the steps:
A, base material treatment: smoothing makes steel plate unevenness＜5mm/m; And justifying face≤10mm/ total length or overall with; Tube sheet plate face unevenness＜1.5mm/m; And justifying face≤2.5mm/ total length or overall with; Steel plate is set level again, used emery wheel to polish, remove surface irregularities, make any surface finish, smooth, surface roughness is Ra12.5 μ m, and it is bright and clean to carry out rubbing down again;
B, multiple material are processed: the plate face unevenness＜5mm/m that guarantees the zirconium plate; And justifying face≤10mm/ total length or overall with; Tube sheet plate face unevenness＜1.5mm/m; And justifying face≤2.5mm/ total length or overall with; Set level again, use abrasive band or impeller bright and clean along the length polishing;
C, brushing and pairing: the zirconium plate is coated with brushes multiple material protective agent, then with the steel plate pairing, place by interruption between zirconium plate and the steel plate after the pairing, avoid direct friction and damage zirconium plate surface;
D, the blast compound: steel plate is set level, and the zirconium plate is parallel placement thereon, and at the even explosive of zirconium plate outer surface, by cap sensitive, the explosion velocity of explosive is 1.8 * 10
3-2.2 * 10
3M/s, brisance are that 6-10mm, density are 0.6g/cm
3-0.85g/cm
3, under high brake pressure, the surface of zirconium plate and steel plate just bonds together firmly;
E, subsequent treatment: the steel plate after compound of will exploding gets product after through repair welding, smoothing, side cut, machine glazed finish.
2. the explosion welding method of zirconium as claimed in claim 1-steel clad steel plate is characterized in that: when making multiple material and process, during zirconium plate thickness 〉=5mm, periphery should be slotted.
3. the explosion welding method of zirconium as claimed in claim 1-steel clad steel plate is characterized in that: when zirconium plate undersized, weld before processing and splice making multiple material.
4. the explosion welding method of zirconium as claimed in claim 1-steel clad steel plate is characterized in that: described multiple material protective agent is waterglass, and its concentration (° Be) is 16-20.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210344475 CN102962579A (en) | 2012-09-07 | 2012-09-07 | Explosion welding method of zirconium-steel composite steel plate |
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| CN 201210344475 CN102962579A (en) | 2012-09-07 | 2012-09-07 | Explosion welding method of zirconium-steel composite steel plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827241A (en) * | 2014-02-12 | 2015-08-12 | 上海却尘科技有限公司 | Manufacturing method of blanks for producing steel-zirconium composite boards |
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2012
- 2012-09-07 CN CN 201210344475 patent/CN102962579A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827241A (en) * | 2014-02-12 | 2015-08-12 | 上海却尘科技有限公司 | Manufacturing method of blanks for producing steel-zirconium composite boards |
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Application publication date: 20130313 |