CN201669935U - Explosively clad plate of UNS S31726 alloy plate and steel plate - Google Patents
Explosively clad plate of UNS S31726 alloy plate and steel plate Download PDFInfo
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- CN201669935U CN201669935U CN2010201960814U CN201020196081U CN201669935U CN 201669935 U CN201669935 U CN 201669935U CN 2010201960814 U CN2010201960814 U CN 2010201960814U CN 201020196081 U CN201020196081 U CN 201020196081U CN 201669935 U CN201669935 U CN 201669935U
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Abstract
The utility model relates to an explosively clad plate of a UNS S31726 alloy plate and a steel plate; the UNS S31726 alloy plate has the thickness of 3-20mm, and a base plate of the steel plate has the thickness of 20-100mm; and the UNS S31726 alloy plate and the base plate of the steel plate have the length of 4-8m and the width of 2-4m. The utility model provides a high-alloy composite steel plate which achieves the anti-corrosion quality and has low cost.
Description
Technical field
The utility model relates to a kind of metallic explosive composite plate, belongs to composite metal plate and makes the field.
Background technology
UNS S31726 alloy is the austenitic stainless steel based on molybdenum.It with the chromium-austenitic stainless steel of routine as 304 alloy phases ratio, have stronger resistance to chemical attack.The relative 316L of UNS S31726 steel grade has good sea water resistance and SCC resistance, is used for the Chemical boats and ships, and chemical products Reactor etc. need high anti-corrosion chemical device.In addition, compare with the stainless steel of routine, alloy has higher ductility, anti-stress corrosion performance, compressive resistance and resistance to elevated temperatures, have anti-sensibilization performance in weld period and heat treatment process, but price is more expensive.So UNSS31726 alloy and common metal composite need be used.UNS S31726 alloy clad steel plate is at chemical reactor, jar, and nuclear power station heat exchanger tube, ocean industrial equipment, petrochemical industry storage tank parts etc. require industries such as corrosion-resistant demanding chemical device to have good application prospects.
Explosive welding is the frontier branch of science of boundary between metal physics, explosion physics and welding science.It is 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 essence is that a kind of is the new technology of metal solder of Pressure Welding, melting and the diffusion welding (DW) ' Trinity ' of the energy with the explosive.
It 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, modes such as the small adjacent domain that occurs in application point of interweaving and moving at a high speed realize the metallurgical binding of two kinds of metals, and the land is rendered as wavy metallurgical alloy.It is again to do the new and high technology a kind of of great practical value that the energy carries out the intermetallic welding and produces metallic composite with explosive that blast is conciliate.Its maximum characteristics are can be with metallic combination in moment, and simple, rapid and strong welds together.The advantage of comparing explosion welding technique with solder technology such as rolling, built-up welding, casting is:
The compound welding for large-area metal of exploding 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, also be applicable to the Metal Substrate alloy of compound between easy generation brittle metal; Have good easily hot, low interface resistance, the land does not have the heat affected area and constitutes good joint performance, and the thermal process of moment does not have the interface or a spot of dissolving only arranged.
The utility model content
The utility model purpose is: the explosive clad plate that proposes a kind of UNS S31726 alloy clad steel plate.
The technical solution of the utility model is: the explosive clad plate of UNS S31726 alloy and steel plate, the thickness of UNS S31726 alloy sheets is at 3-20mm, substrate steel sheet thickness is the 20-100mm steel plate, and long 4～8 meters of UNS S31726 alloy sheets and substrate steel sheet are wide 2～4 meters.
Welding method of the present utility model may further comprise the steps:
A, base material treatment: smoothing is steel plate unevenness＜3mm/m; And whole plate face≤10mm/ total length (wide); Tube sheet area unevenness＜1.5mm/m; And whole plate face≤2.5mm/ total length (wide); Steel plate is set level again, used belt grinder 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 handled: the plate face unevenness＜5mm/m and the positive plate face≤10mm/ total length (wide) that guarantee UNS S31726 alloy; Tube sheet area unevenness＜1.5mm/m; And positive plate face≤2.5mm/ total length (wide); Set level again, use the polishing of abrasive band or impeller bright and clean;
C, brushing and pairing: UNS S31726 alloy sheets is coated with brushes multiple material protective agent,, isolate by fiberboard between pairing back UNS S31726 alloy sheets and the steel plate and place, avoid direct friction and damage UNS S31726 alloy sheets surface then with the pairing of steel version;
D, the blast compound: steel plate is lain on the fort, the parallel thereon placement of UNS S31726 alloy sheets, the middle standard support of placing, evenly place explosive at UNS S31726 alloy sheets outer surface, pass through cap sensitive, under high brake pressure, the surface of UNS S31726 alloy sheets and steel plate just bonds together firmly;
E, detection: explode compound after, clad steel plate detects not through 100%UT that recombination region gives repair welding;
F, heat treatment: the clad steel plate after the repair welding is heat-treated, and to eliminate the stress that explosion time produces, guarantees the strength character of base material and the requirement of weld seam and multiple material decay resistance;
G, subsequent treatment: the steel plate after the heat treatment through smoothing, is cut edge, get product behind machine glazed finish or the acid wash passivation.When UNS S31726 alloy sheets undersized, remake multiple material and splice before handling.
The utility model beneficial effect is: a kind of anticorrosive quality and low high alloy clad steel plate of cost of reaching is provided.
Description of drawings
The schematic diagram that Fig. 1 installs for the utility model blast
Fig. 2 is the utility model side structure schematic diagram
Detonator 1, explosive 2, overcoat 3, alloy sheets 4, support 5, steel plate 6, ground 7.
The specific embodiment
Specify embodiment of the present utility model below:
The base material technology for blanking: steel plate should have quality certificate, indicates clear; Material has the steel plate of ultrasound examination requirement, should be qualified through Ultrasonic Detection as requested; The grade of steel of material, specification, examination of materials numbering are consistent with process sheet.
Press the line of process sheet blanking specification, 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 5mm.
Check the surface quality of steel plate, qualified if the discovery surface of steel plate should in time be handled when mass defect is arranged.Carry out gas cutting or shearing by line, allow to stay an amount of reconditioning surplus, shear the back deburring, should remove slag during gas cutting, cut surface should be vertical and smooth bright and clean with the steel plate face, must not scab, defectives such as zigzag, pit, when above-mentioned defective occurring, allow reconditioning to reach the cutting surfacing.
Should smooth the unevenness＜3mm/m of steel plate plate face after smoothing when steel plate plate face unevenness 〉=3mm/m or whole plate face＞10mm/ total length (wide); And whole plate face≤10mm/ total length (wide).
Clad tubesheet should be smoothed the unevenness＜1.5mm/m of steel plate plate face after smoothing during with steel plate plate face unevenness 〉=1.5mm/m or whole plate face＞2.5mm/ total length (wide); And whole plate face≤2.5mm/ total length (wide).
Multiple material technology for blanking: material, the specification of checking UNS S31726 alloy sheets.When if UNS S31726 alloy sheets need be spliced, splicing requires as follows: the splicing width dimensions 〉=300mm of UNS S31726 alloy sheets; When the length of UNS S31726 alloy sheets need be spliced, answered≤L/4 position of center line (L is a UNS S31726 alloy sheets total length) the splicing welding joint position of UNS S31726 alloy sheets.Assembling and spot welding should adopt the welding rod with product welding same model, specification, and every 100mm spot welding a bit, the about 4-6mm of spot welding length welds by welding procedure again; Polishing after welding is finished, polishing weld seam guarantee weld bead height 0～0.5mm.
When UNS S31726 alloy sheets thickness 〉=5mm/m, periphery should be slotted: the center line of groove is 10-20mm with the distance of multiple edge line, and groove depth is 2-4mm; 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, promptly the section of material and base material just returns concordant again, when the thickness of answering material was big, shearing force was not enough to reach requirement, will influence the edge quality of composite plate, in order to be effective, just can be at the desired location fluting so that come off smoothly.Groove is processed on planer or lathe; If, should guarantee the notch size as far as possible with the carbon arc air gouging fluting.Should be coated with the anti-coating that splashes before the gouge, answer the splash and the oxide of frosted both sides behind the gouge.
Smoothing: should smooth plate face after smoothing: unevenness＜5mm/m when the plate face unevenness 〉=5mm/m of UNS S31726 alloy sheets or whole plate face＞10mm/ total length (wide); And whole plate face≤10mm/ total length (wide);
Clad tubesheet should be smoothed the unevenness＜1.5mm/m of steel plate plate face after smoothing with plate face clad tubesheet during with steel plate plate face unevenness 〉=1.5mm/m or whole plate face＞2.5mm/ total length (wide); And whole plate face≤2.5mm/ total length (wide).
The base material technique for grinding: the technique for grinding of steel plate composite surface is wanted evenly not allow defectives such as oxide skin, pit, pit, and will guarantee steel plate thickness.
Thick polishing is with 40 order grinding wheels, and discovery oxide skin, pit, pit and polishing when inhomogeneous when slightly polishing polished after should in time handling again; Should in time remove foreign material such as the surperficial oxide skin of polishing, laying dust after the thick polishing.Smart polishing should in time be removed the foreign material such as laying dust on polishing surface with 120 order abrasive bands after the smart polishing; Buffed surface after the smart polishing is smooth, bright and clean.Its surface roughness Ra 12.5 μ m.Steel plate plate face after the polishing polishes bright and clean with thousand pages of wheels of 200 orders uniformly.
Multiple material technique for grinding: it is bright and clean that the polishing of UNS S31726 alloy sheets adopts abrasive band or thousand pages of wheels to polish along the length direction, if UNS S31726 alloy sheets surface defectiveness should adopt the abrasive band to polish in the time of need polishing.
Polishing is wanted evenly not allow defectives such as oxide skin, pit, pit to occur, guarantee the multiple material thickness of UNS S31726 alloy sheets.Should in time remove the foreign material such as laying dust on polishing surface after the polishing.
The multiple material surface of UNS S31726 alloy sheets after the polishing should be smooth, presents metallic luster.
It is compound to explode: steel plate is lain against on the fort; the parallel thereon placement of UNS S31726 alloy sheets is matched, again with UNS S31726 alloy sheets external coating protective agent, explode compound before; should strictly control the bearing height between base material and the multiple material, guarantee composite quality.Evenly place explosive at UNS S31726 alloy sheets outer surface, the explosion velocity of explosive is that 2200～3200mm/s, violent speed are 0.6g/cm for 6-10mm, density
3～0.85g/cm
3, by cap sensitive, under high brake pressure, the surface of UNS S31726 alloy and steel plate just bonds together firmly.
With the roll-in smoothing back and forth on nine roller levelling machines or three rolls plate bending machine of the composite plate on the multiple course, rule after reaching requirement, (composite plate thickness≤20mm) or plasma cut (composite plate thickness＞20mm) press the scribing line shearing again; The peripheral cut surface of composite plate four (circle) is vertical with the plate face, and defectives such as the peripheral cut surface of composite plate four (circle) should be smooth, smooth, must not scab, zigzag, pit, if there is above-mentioned defective to allow reconditioning to reach requirement.
Use thousand pages of wheels that the composite plate clad surface is polished or acid wash passivation after get product, the lines of its clad surface of finished product after the polishing must be continuous, consistent.
Claims (1)
1.UNS the explosive clad plate of S31726 alloy and steel plate, the thickness that it is characterized in that UNS S31726 alloy sheets are at 3-20mm, substrate steel sheet thickness is the 20-100mm steel plate, and long 4～8 meters of UNS S31726 alloy sheets and substrate steel sheet are wide 2～4 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201960814U CN201669935U (en) | 2010-05-19 | 2010-05-19 | Explosively clad plate of UNS S31726 alloy plate and steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201960814U CN201669935U (en) | 2010-05-19 | 2010-05-19 | Explosively clad plate of UNS S31726 alloy plate and steel plate |
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| Publication Number | Publication Date |
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| CN201669935U true CN201669935U (en) | 2010-12-15 |
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| CN2010201960814U Expired - Fee Related CN201669935U (en) | 2010-05-19 | 2010-05-19 | Explosively clad plate of UNS S31726 alloy plate and steel plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434266A (en) * | 2018-12-14 | 2019-03-08 | 安徽宝泰特种材料有限公司 | A kind of explosive method improving large area clad tubesheet fitting rate |
-
2010
- 2010-05-19 CN CN2010201960814U patent/CN201669935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434266A (en) * | 2018-12-14 | 2019-03-08 | 安徽宝泰特种材料有限公司 | A kind of explosive method improving large area clad tubesheet fitting rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NANJING SANBANG NEW MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: NANJING SANBOM METAL CLAD MATERIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangning District of Nanjing City, Jiangsu province 211100 Wang Zhen Heng Cloud Road No. 248 Patentee after: Nanjing three novel material Science and Technology Ltd. of nation Address before: Jiangning District of Nanjing City, Jiangsu province 211100 Wang Zhen Heng Cloud Road No. 248 Patentee before: Nanjing Sanbom Metal Clad Material Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20160519 |