GB/T 13149-1991 Technical requirements for welding of titanium and titanium alloy composite steel plates
Some standard content:
uno 621.79: : 669.255.5
-669.14-41
National Standard of the People's Republic of China
CB/T 1314991
Titanium and titanium alloy composite steel plate
Welding technical conditions
Specification for welding of titanium and titanium ulluy clad sleel plate7991 08-23 Issued
1992-0501 Implementation
State Administration of Technical Supervision Issued
National Standard of the People's Republic of China
Titanium and titanium alloy composite steel plate
Welding technical conditions
Specifikcpicom far welding of titanium and titanium ulluy clad sleel plate? Main content and scope of application
GB/T 13149
This standard specifies the technical requirements for furnace drilling and production of alloy composite steel, materials, thickness, preparation conditions, welding process, basic welding test and existing welding defects.
This standard is applicable to the development of titanium and titanium alloy composite plates with a total thickness of more than 8mm and carbon structural copper, low alloy steel or stainless steel as the base material. 2 Reference standards
Steel press Force setter
No steel strip
GB130U
GB2550
GB2653
GB3621
GB3623
GR4191
GB4241
CB434G
GR4698
GB4 842
GB 5117
GB5'13
GH5293
GB 6352
G3 8546
GR S>4Y
Gas welding, basic types and sizes of welding seams for electrical and gas shielded welding
Mechanical test methods for welding joints
Impact test method for welding joints
Oil pulling test method for welding joints
Welding joint bending and pressure test method
Steel fusion welding butt joints, radiation quality classification and quality certification, full brand and chemical products
Titanium and titanium alloy plates
Cooperation and lack of Wire
Gas welding, cutting and welding of stainless steel plates
Thickness test method
Chemical analysis method of titanium and gold alloys
Carbon steel welding rod
Alloy steel welding rod
Carbon steel welding flux
Industrial carbon dioxide
Titanium-stainless steel alloy
Fast-steel alloy
National Technical Supervision Week 1991-08 23 batch pool
1992-05-01 implementation
core 64.3 ship hull specification
B95 jade container welding second process certificate
3 materials
Gn/T 13149-91
3.1 titanium and alloy composite steel plates and their matching coal materials must have factory quality assurance certificates. If the quality assurance certificate is incomplete or it is considered necessary, the relevant standards shall be used for material evaluation. When the content of the composite steel plate is increased by ultrasonic re-examination, the quasi-fluid cannot be used as a coupling agent. Instead, water or water
3.2 The quality of titanium and alloy composite plates shall comply with the provisions of GB8546.GB85417 or the agreement between the supply and demand parties. 3.3 The pure raw materials shall comply with the provisions of 3525. -0.3Ma.C.BNi.-0.2Pd wire composition should be in accordance with B8547. When the product has special requirements for the quality of the wire, the corresponding requirements for the quality of the wire should be put forward. 3.4 When it comes to steel, low alloy and non-standard welding, the flash welding rod and welding wire number should be GB/T1.7, G5118, GE985G1300, G1211, GB21 and other relevant standards. 3.5 The chlorine gas used for welding shall comply with the provisions of (4842. The chlorine gas used for welding shall comply with the provisions of (5th class and first class) in E6952. 3.6 When welding with high-voltage DC, it is recommended to use tungsten electrodes, the quality of which shall comply with the provisions of G419. 4.1 Welders must undergo training, pass the examination and obtain a certificate before they can take up the position. The examination rules for welders can be based on the technical requirements of the product and can be carried out according to the "Boiler Pressure Equipment Welder Examination Rules (Steel Base> Lift Standard Appendix A (Reference)" "Needle and Alloy Welder Examination Rules (Money Composite Layer)" issued by the Ministry of Labor. Or the above-mentioned position shall be formulated according to the technical requirements of the user and approved by the quality supervision department. 4.2 The material, welding force method, welding position and joint type of the welder shall be consistent with the qualification certificate 3. During the welding process, welders must strictly follow the welding process regulations. 5. Welding preparation
5.1 Cutting
Drilling and cutting of titanium alloy steel should be carried out as much as possible by mechanical means. When cutting with fire, try to make the needle layer face away from the fire, and the composite plate should have a certain height from the ground. The oxide layer of the cut must be removed before welding. 5.2 Joint type
The effective needle alloy composite steel plate welding joint mainly adopts the type of joint and negative joint. The type of joint should be clearly defined in the design, and the sensitive layer and base material in the welding joint are not allowed to be swept out. The joint types used in the technical standards are as shown in Table 1 and Table 2. Table 1 Convex I, I\, \, and type joints are recommended for compressive components (type I is used for components with low surface requirements and flat layers) Type I joints are used for compressive components.
5. 3 Groove form and size
5.3.1 The determination of notch form and size shall be comprehensively considered according to the joint type and the welding method adopted. The notch form and size shall be determined according to the process test and process evaluation results. This standard recommends the use of the notch form and size shown in Figures 1 and 2. 5.3.2 Groove processing can be carried out by process cutting method. When processing composite steel grooves, oil lubrication cannot be guaranteed. 5.4 Pre-treatment
5.4.1 Natural filling tea, cover plate and titanium wire shall be chemically cleaned before welding. For the formula of cleaning liquid and cleaning system, please refer to Table 3.2
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Table 3 Preparation and cleaning system of pickling solution
Preparation quantity
Washing temperature
Acid material
1R: 20
5.4.2 After pickling, the filler, cover and wire must be rinsed with water and then dried. Those that can be used but those that are not used temporarily should be properly stored and must not be contaminated.
5.4.3 When the manufacturing cycle of the assembled parts is long, the edges of the assembled parts are easy to be contaminated. In order to keep the surface clean, preventive measures such as standing water-free bite tape can be adopted.
4.4 Before welding, the base steel and the glass area should be cleaned. If there is dirt, such as the groove of the machine, it must be cleaned by hand or by machine (shrimp scraper, stainless steel wire). For base steel, the cleaning range is at least 1000mm for manual welding and 300mm for arc welding. The clearance between the clamp and the weld is at least mm. 5.5 Assembly
For the assembly of base plate weldments with the same thickness as the drawing, the surface of the other material shall be used as the standard. The assembly datum of fast-groove weldments with different thickness shall be in accordance with the provisions of the design drawing.
6 Welding
E.1 Welding methods and equipment
6.1. For the welding of the base steel, manual electric arc welding, buried arc welding or gas shielded welding are recommended. Use corresponding welding equipment. 6.1.2 For the welding of the composite layer, deep arc welding (T1G), metal inert gas (MIG) and other methods are recommended, and corresponding manual welding, automatic welding machine and other welding equipment are used.
5.7.3 Other welding methods that can be used to protect the quality of welding are allowed. 6.1.4 The welding machine should have good arc ignition and arc stability performance, and the parameters should be standardized and easy to adjust. The water and gas supply system should be safe and reliable. 6.1.5 The gas discharge protection performance should be good.The light gas should be transported by the joints made of non-weak materials such as enamel. If the joints are found to be aging, they must be replaced in time.
6.2 Material selection
For the welding materials of the joint plate, please refer to Table 4. The requirements on the design drawings can be determined through process evaluation. 6.3 Welding process evaluation
6.3:1 When the product requires welding process evaluation, the welding process evaluation case shall be selected before class: Table 4 and alloy composite joint material parent material brand
Q335-H, Q235 HF
Hand beam spring
43031.1427:
F:43:5(J427)
h4216(:436
HagMnA
Gas fast protection division
Protective gas
Mother brand
HiMeiR
15MnVR
OC+13N11T
1CrLENigi
OCriBNi12MuT
T:-0, 2PJ
7 0. 3M-C. 8.4i
Under-work welding coal miscellaneous
H5:15(J57)
E5016SC
E5515-([557)
E5516-C(.[656)
Eo- [9-.oNu-I:
E0-19-.UN-1
Fu-1-12Mu-16
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Buried automatic identification
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Gas storage protection
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63-? The above process assessment is to conduct welding process assessment for base material system and titanium base respectively, and the characteristics of alloy plate welding joints should be taken into consideration. The evaluation method can be carried out in accordance with Appendix B (Test List) of this standard - Titanium Alloy Welding Process Specification of B3964 (October 1998) and the construction unit shall formulate the evaluation standard according to the characteristics of the product structure and technical requirements, and shall obtain the approval of the corresponding quality supervision department. 6.4 Welding process specifications
The construction unit shall formulate the welding process specifications according to the product structure characteristics, technical requirements and the evaluation of the welding process, etc. 1.2. After that, the titanium layer should be protected from oxidation during welding, such as adding a drag cover or reverse protection. 6.5 Welding process specifications
The welding process specifications of the product shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding unit or the welding process evaluation. The welding process specifications shall be determined by the welding process specifications ...
6.5 Welding process
6.6.1 Weld the first layer of steel first. After the first layer of steel has passed the quality inspection, weld the second layer. 6.6.? Before positioning the joint, the joint must be welded. The same joint materials and welding workers as the regular welding are used. The joint assembly quality, edge quality and welding quality of the joint assembly must be checked. After meeting the requirements of the above standards, the joint can be welded. 6.6.4 Avoid contact between the steel joint and the drill surface to avoid titanium contamination. 6.6.51 Welding requirements for joints
6.6.5.1 Weld the steel surface first, and weld as much as possible. Weld through to the titanium surface to avoid cracking. At the same time, it also prevents the oxidation of the steel and the separation of the natural layer and the base layer. E.6.5.2 After the surface is complete, the titanium bean layer can be welded after cleaning. The corner should not be welded. The depth of the weld should be controlled below .5 as much as possible. Each piece should be charged with coal wire and the spot should be damaged. 6.6.61:,I,I welding requirements for the head
6.6.6.1 The steel surface is welded first, and it is required to be through. When spot welding is used, it should be manually primed: after the penetration is checked, the penetration should be reversed in the summer layer. After the steel weld surface is checked, the subsequent steel welds are inspected. The composite layer can be welded only after the X-ray inspection is qualified.
6.6.6.2 Before welding the composite layer, the inner layer should be drilled according to the inner section to make a solid surface strip of about 20mm. The width of the filling strip should be selected according to the actual size: the material should be cut to avoid leaving a slight gap. The width of the test piece should be limited to the maximum. 6.6.6.3 The width of the sample point should be about 0mm. The width of the sample point should be about 1mm. The positioning points of the two systems should be well positioned. The positioning points should be fixed at the same time. The welding wire should be added. 6.E.6.1 The welding of the needle layer should use a small wire that can not melt to the surface. The welding process can be improved. When welding the joint (V), a protective benzene should be passed underneath. 6.6.5.5 (T-joint iron cover plate (half clamp) titanium composite welding should choose a smaller specification: to help composite surface puncture separation: 6.6.6.6 Dry road increase the risk, pay attention to the interlayer intensity during welding (especially the effect of the object itself) The interlayer temperature should be lower than 1506.6.7.\ Type joint requirements
6.6.7.1 The steel surface is first coal, the requirements are the same as 5.6.6.1. 6.6.7.2, the money layer and the benefit plate, the corner joint of the ten round tube, try to sweep the root before adding, the welding chain surface is concave 6.6.B When welding, the lead plate and the gun plate can be used: it is not allowed to arc on the outside of the city: 6.6.9 During the welding process, the hot spot is located, the washing war is developed, the misalignment or the interval is observed, and the welding flow is stopped if it is established, 6.6.10 When energy tungsten occurs, welding should be stopped immediately. The weld should be removed. 6.6.11 The welder should be in the correct position as much as possible! 6.6.12 The welder must wear work clothes and white [suit before entering the welding area. 6-6.13 The weld surface should be carefully cleaned, weld nodules, contaminants and other contaminants. 6.6.14 After the welding, the welder can make a second steel stamp on the steel near the weld, including titanium welds), if there are special requirements, the design drawings must be obtained. 6.6.15 When the heat treatment method must be used to eliminate the residual sound of the welding fin, the treatment system should be implemented as specified in the design drawings. 7 Quality Inspection
7.1 The person who conducts the quality inspection shall undergo necessary technical training and be able to grasp the quality inspection standards. The person responsible for non-destructive inspection shall have the qualification approved by the relevant departments.
7.2 The quality inspection shall be carried out according to the process control inspection and the finished product inspection. The welding process shall be transferred to the process after the inspection and approval of the quality inspection personnel. The finished product inspection items include appearance inspection, non-destructive inspection, machine performance inspection, iron pollution inspection, pressure test and welding width test, etc.
7.3 Welding quality inspection
3.1 The appearance size and surface quality of the welding weld can be inspected by magnifying the weld with eyes, and the appearance inspection rate is 1%. 7.3.2 The length and size of the weld appearance shall meet the requirements of the design drawings. 3.3 The welded joints shall be uniform, dense and smooth, and shall not have cracks, punctures, or defects such as edges, pores, holes, and pits.
7.3.4 When there is no provision in the product design: The steel joint shall not have any bite: The depth of the steel joint edge shall not exceed 30% of the original depth. The continuous depth of the edge shall not exceed 20m. The total width of the weld side bite shall not exceed 10% of the length of the seam.
7.3.5 The surface of the test weld shall not have scratches with a depth greater than 0.5m. If there are scratches greater than C.5, they shall be removed. The surface of the weld after removal shall not be lower than the surface of the parent material.
7.3.6 Color inspection of the weld surface
The color of the weld and the heat affected zone surface shall be The silver-white package is slightly yellowish due to the oxidation effect, which is allowed. The welding surface is dark yellow or purple, and the gray part is on the surface of the weld chain. If it is on the surface of the weld, it is necessary to determine whether the weld chain part is about to return. If the surface of the weld zone is gray and there are concave deposits, it must be removed. 7.4 No deep extraction. 4.1 The time-sharing line is operated according to the standard (B3323 group). The speed, quality and qualified standards shall comply with the provisions of the design drawings or the agreement between the supplier and the supplier. 7.4.2. The double layer is good, and the appearance of the test is recorded. According to C150 Annex H, the steel pressure vessel is transferred to the tester for color inspection. The inspection scope and qualified standards shall comply with the provisions of the instrument drawing. 7.5 Inspection
7.5.1 After multi-layer welding, the welding area shall be inspected by iron ion. 7.5.2 The formula of iron ion inspection is: iron ion K, Fr (CN). J3g: hydrochloric acid 2UmL, water 75ml. 7.5.3 Before light inspection, the surface to be inspected shall be wiped clean with acetone. During fast inspection, the surface to be inspected shall be dripped with the cover liquid. If the inspection shows white (original color), it indicates that the titanium is free of contamination. If the inspection liquid turns to some color, indicating that the titanium surface has soft stains, the table should be re-cleaned with internal energy until the inspection liquid turns orange.
7.6 Pressure test and tightness test
7.6.1 When the design drawing requires it, the rolling test can be carried out. The test force method can refer to G knife 150. 7.6.2 When the air tightness is checked from the side hole of the package, the welding chain is repaired immediately if leakage is found. 7.7 When there are special requirements for the corrosion resistance of the joint, the supplier and the buyer shall jointly discuss the test method and certification standard. 7.8 Mechanical performance test of welding joint
7.1 When the product technical conditions require the provision of product welding test plates, the following tests can be avoided: Mechanical performance test of welding joints, including joint plate tension, bending and punching tests (if necessary). The size of the test plate and the sampling method shall comply with the provisions of GB2619. 7.8.2 The tensile test and sample size of the plate shall comply with the provisions of GB2551. Two samples with a layer of welded joints shall be taken for testing. The tensile strength of the welded joint shall not be lower than the lower limit of the batch tensile strength of the composite steel plate. 7.3 The bending test and sample size of the joint shall comply with the provisions of GB253. The diameter of the two (base layer) shafts, the bending angle and the qualified standards of the joints shall comply with the relevant standards (such as GJB6E.J, etc.). 7.8.4 The joint test shall be carried out in accordance with the provisions of 62650. The position of the test sample on the market shall be determined. The test temperature and light value qualified standards shall be carried out in accordance with the design drawing requirements.
7.8.5 When the product design drawing has special requirements for the mechanical properties of the joint, the drawing price installation requirements shall be implemented. Daily welding fast sink repair | |tt||B1 When unacceptable depressions are found on the weld, and repair is required after cleaning, the repair procedures shall be approved by the welding technicians. The number of repairs of the welded parts should not exceed 10 times. 8.2 For welded parts that fail to meet the requirements of the repair, the second repair shall be approved by the general manager of the equipment. After that, the number of repairs, parts and repair conditions shall be recorded in the quality file. 9 Welding environment
9.1 Titanium composite steel plate welding should be carried out indoors. 9.2 The site environment should be In addition, try to separate the welding area of materials from the steel working area, and the relative humidity of the environment should be less than %. 9.3 When welding in the field, there should be facilities such as anti-corrosion, anti-moisture, and anti-instantaneous welding. 9.4 When the temperature of the weldment is less than 0℃, it should be preheated within 80mm of the welding start point. The preheating speed should not exceed 15℃. 9.5 Titanium pickling should not be set in the welding workshop of the weldment, and the acid liquid discharge frequency should meet the requirements. 30 Safety Protection
10.1 When welding with hydrogen, the welding area should be well ventilated. When welding in a narrow case, a dedicated person must temporarily expand the welding area. 102 When welding steel plates with flame cutting, try to do it in a well-ventilated place. GE/T13149-91
10.3 When welding titanium alloys, the operator must wear white work clothes with tight collars and cuffs, and the surface should not be shiny. 10.4 The electric welding machine should be safely grounded: the insulation of the self-cable is good, 10.5 The gas cylinder should be securely bolted to prevent tipping. 10.6 Avoid burns and scalds that cause fires and other accidents. 11
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