CN103600211B - The preparation method of weapon barrel - Google Patents
The preparation method of weapon barrel Download PDFInfo
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- CN103600211B CN103600211B CN201310649730.XA CN201310649730A CN103600211B CN 103600211 B CN103600211 B CN 103600211B CN 201310649730 A CN201310649730 A CN 201310649730A CN 103600211 B CN103600211 B CN 103600211B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The present invention relates to the preparation method of a kind of weapon barrel being applicable to missile launching, it comprises the steps: neck material line blanking plane rumbling welding campus, limit nondestructive testing polishing thermal treatment cleaning make-up machinery processing line perforate inspection warehouse-in. By preparation method of the present invention, ensure that mechanical workout high-precision requirement; Ensure that making frock supports high precision form and position tolerance matching requirements; Counterpart alignment tolerance, corner angle degree and weld reinforcement when ensure that welding; High precision dimensional requirement when ensure that perforate; Achieve weapon barrel and there is storage area, service clearance and launching system simultaneously.
Description
Technical field
The present invention relates to the preparation method of a kind of launching device, particularly relate to the preparation method of a kind of weapon barrel being applicable to missile launching.
Background technology
At present, weapon barrel technical field wants that the technical problem solved is always, the equipment of weapon barrel can be realized providing a storage area, provides a service clearance, provide a launching system, but it is as follows to there is main technique problem in existing technique:
(1) mechanical workout ensures the high precision dimensional problem that drawing requires.
(2) make frock and support the high precision form and position tolerance assembly problem ensureing that drawing requires.
(3) counterpart alignment tolerance, corner angle degree and weld reinforcement problem is ensured during welding.
(4) the high precision dimensional problem that drawing requires is ensured during perforate.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, it provides the preparation method of a kind of weapon barrel, solve the problem that preparation method's processing and fabricating precision of weapon barrel in prior art is low.
The preparation method of the present invention comprises the steps:
Neck material line blanking plane rumbling welding campus, limit nondestructive testing polishing thermal treatment cleaning make-up machinery processing line perforate inspection warehouse-in;
Step 1 leads material:Getting sheet material, material surface does not have defect, and sheet material must not have layering; Board surface defect allows cleaning, and cleaning gently without corner angle, and should ensure the permission minimum thickness of sheet material;
Step 2 is rule:Above-mentioned sheet material distance line 100mm place, edge, makes mark and transplants;
Step 3 blanking:By long for above-mentioned sheet material plate gas cutting blanking, plate width is sheared: and the upper layer that the surperficial slag produced when gas cutting is split blanking and impact manufacture is removed by polishing; Sheet material length of run permissible error is 0 1mm; Sheet material two catercorner length difference is 0 1mm; Run-on plate is 100x100mm, and run-on plate thickness is identical with sheet metal thickness, and wall scroll weld seam needs 4 pieces of run-on plates, and namely the initial termination of wall scroll weld seam respectively needs 2 pieces of run-on plates;
Step 4 digs limit:Above-mentioned sheet material groove surface must not defectiveness; Behind sheet material plane limit, length of run permissible error is 0 1mm, and two diagonal lines differ from 0 1mm;
Step 5 reel:Rolling two ends, direction at above-mentioned sheet material and first carry out pre-bending, longitudinal groove inwardly, ensures to roll in process on plate without iron filings, foreign material, has rolled formation reel;
Step 6 is cleared up:Clear up above-mentioned reel groove and both sides, the mother metal surface at least oxide skin within the scope of 30mm, greasy dirt, slag and other impurity;
Step 7 group pair:By reel group to tack welding, butt-joint clearance C=0mm, counterpart alignment tolerance b��0.2mm;
Step 8 is welded:Above-mentioned reel being carried out longitudinal measure and becomes shell ring, welding joint grade is decided to be II grade by QJ176A-99;
Step 9 school circle:Shell ring after above-mentioned welding is carried out on plate bending rolls school circle, the splashing of shell ring weld seam, overlap and foreign material will be cleared up, school circle process sweeps the oxide skin split away off in time;
Step 10 nondestructive testing:Above-mentioned II grade of welding joint carries out X-ray inspection X by GJB1187, when II grade of welding joint visual appearance is checked, carries out magneticpowder testing by GJB2028;
Step 11 is polished:Polishing the weld seam of above-mentioned shell ring, internal diameter weld bead height is not more than 0.2mm, excessively smooth;
Step 12 thermal treatment:When above-mentioned weldment enters stove, in-furnace temperature 20 DEG C; After weldment is warming up to 400 DEG C, heating zone heat-up rate is 55 DEG C/h-220 DEG C/h, and should more than 5500/ �� (thermal treatment thickness) DEG C/h; Between weldment temperature raising period, in heating zone, any length is that the temperature difference in 4600mm must not be greater than 120 DEG C; Heat up and during insulation, prevent weldment surface over oxidation; When weldment temperature is higher than 400 DEG C, heating zone cooling rate is 55 DEG C/h-280 DEG C/h, and should more than 7000/ �� DEG C/h; When weldment is come out of the stove, furnace temperature 280 DEG C; Should cool in static air after coming out of the stove;
Step 13 is cleared up:The oxide skin on the mother metal surface after cleaning thermal treatment;
Step 14 is assembled:Internal stay tool, then circumferential weld internal stay tool will be loaded in above-mentioned shell ring step by step, ensure that between shell ring, linearity form and position tolerance is 0-0.4mm; Circumferential weld between each shell ring has welded connection;
Step 15 mechanical workout: the shell ring that above-mentioned assembling is good being carried out mechanical workout, ensures the diameter size �� 1450+1+0.5 between each shell ring, verticality is 0.5mm, and planeness is 0.2mm;
Step 16 is rule:The shell wall of shell ring is drawn the position line, stays cutting surplus;
Step 17 perforate:By the cutting of marking-out rule little progress row, and ensure its dimensional requirement;
Step 18 inspection and acceptance:Check and accept, check surface quality, size and size tolerance requirements thereof.
In described step 1, sheet material is steel plate Q345, �� 6.
In described step 2, along sheet material diagonal lines direction, make two place's marks and transplant.
In described step 8, slag being cleaned out during multi-layer welding Zai Han lower floor, scarfing cinder should carry out after solidifying completely; Selecting E5015 welding rod to weld, bake out temperature is 350 DEG C/1h; Welding process is cleaned out between middle level, clears up after weldering; Internal diameter weld bead height��0.2mm; Weld face is excessively round and smooth, and weld edge is no more than 3mm along weld seam axial straightness in any 300mm continuous weld length, and welding joint does not exist lack of penetration.
In described step 10, above-mentioned II grade of welding joint is by GJB481 Weld Quality Inspection requirement, it is seen that welding joint 100% carry out visual inspection; The suspicious welding joint in local allows to use the lens examination being not more than 10 times.
In described step 12, put during weldment thermal treatment flat, pad and prevent high temperature unstability; Thermal treatment temp 620 �� 20 DEG C, insulation 0.5 hour.
In described step 14, selecting 7 shell rings to assemble step by step, composition shell ring I is to shell ring VII.
In described step 16, drawing the oblong aperture position line on shell ring I, shell ring IV and shell ring VII, oblong aperture and end face distance on shell ring I are 160mm, and oblong aperture and end face distance on shell ring VII are 140+2 +1And oblong aperture and the end face distance on shell ring IV is 100+2 +1��
In described step 16, the circular hole position line drawn again by the shell wall of shell ring VII, stayed 2mm to cut surplus.
The advantageous effect of the present invention is as follows:
By preparation method of the present invention, ensure that mechanical workout high-precision requirement; Ensure that making frock supports high precision form and position tolerance matching requirements; Counterpart alignment tolerance, corner angle degree and weld reinforcement when ensure that welding; High precision dimensional requirement when ensure that perforate; Achieve weapon barrel and there is storage area, service clearance and launching system simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of weapon barrel of the present invention.
Fig. 2 is embodiment of the present invention bevel for welding form schematic diagram.
Fig. 3 is embodiment of the present invention heat treatment cycle curve figure.
In figure, 1, shell ring I, 2, shell ring II, 3, shell ring III, 4, shell ring IV, 5, shell ring V, 6, shell ring VI, 7, shell ring VII.
Embodiment
Embodiment
As shown in Figure 1, weapon barrel comprises shell ring I to shell ring VII, and shell ring I to shell ring VII is overall by welding, frock composition successively, the present invention with weapon barrel internal diameter 1984mm, tank wall thickness 6mm, total length 9380mm are example, describe its concrete preparation method in detail.
Step 1 leads material:Neck material Q345, �� 6 plate, check mark on quality of materials certificate and material by standard GB/T3274-2007 regulation, and material surface do not have scab, crackle, fold, be mingled with, bubble and iron scale press-in etc. to using harmful defect, steel plate must not have layering. Surface Defects in Steel Plate allows cleaning, and cleaning is except gently without corner angle, and ensureing the permission minimum thickness of steel plate.
Step 2 is rule:Along sheet material diagonal lines direction (two places) distance each 100mm place of line, edge, make mark and transplant.
Step 3 blanking:By long for above-mentioned sheet material plate gas cutting blanking, plate width is sheared: and the upper layer that the surperficial slag produced when gas cutting is split blanking and impact manufacture is removed by polishing; Sheet material length of run permissible error is 0 1mm; Sheet material two catercorner length difference is 0 1mm; Run-on plate is 100x100mm, and run-on plate thickness is identical with sheet metal thickness, and wall scroll weld seam needs 4 pieces of run-on plates, and namely the initial termination of wall scroll weld seam respectively needs 2 pieces of run-on plates.
Step 4 digs limit:Must not scab in above-mentioned sheet material groove surface, crackle, fold, be mingled with, the injurous defect such as bubble. Length of run franchise is 0 1mm, and two diagonal lines differ from 0 1mm.
Step 5 reel:Rolling two ends, direction at above-mentioned sheet material and first carry out pre-bending, longitudinal groove, ensures to roll in process without iron filings, foreign material on plate, reel �� inwardly In =1985mm, uses model RIn=992.5mm checks, has rolled and has formed reel.
Step 6 is cleared up:Clear up above-mentioned reel groove and both sides, the mother metal surface at least oxide skin within the scope of 30mm, greasy dirt, slag and other impurity.
Step 7 group pair:By reel group to tack welding, butt-joint clearance C=0mm, counterpart alignment tolerance b��0.2mm.
Step 8 is welded:Above-mentioned reel being carried out longitudinal measure and becomes shell ring, welding joint grade is decided to be II grade (II grade of welding joint is applicable to working conditions welding joint relatively severe, that safety coefficient relatively big, welding joint tensile strength is lower by power or important welding joint) by QJ176A-99.
Welder should according to pattern, technical papers, technological standard welding. Slag is cleaned out during multi-layer welding Zai Han lower floor, and scarfing cinder should carry out after solidifying completely. By " Welding Procedure Specification WPS " requirement: select E5015 welding rod to weld, bake out temperature is 350 DEG C/1h. Welding process is cleaned out between middle level, and inspector presses layer inspection, record welding condition, and after weldering, welder fills in " welding record ", clears up after weldering. Cleaning surface welding slag, after self-inspection is qualified, does welder's code name mark. Internal diameter weld bead height is not higher than 0.2mm. Bevel for welding form is such as figure below. Welder's code name is recorded in containing the welding record of weld seam layout drawing. Weld face should be excessively round and smooth, and weld edge is no more than 3mm along weld seam axial straightness in any 300mm continuous weld length, and welding joint does not allow to exist lack of penetration.
Step 9 school circle:Shell ring after above-mentioned welding is carried out on plate bending rolls school circle, the splashing of shell ring weld seam, overlap and foreign material will be cleared up, school circle process sweeps the oxide skin split away off in time. Use RInThe model inspection of=992.5mm.
Step 10 nondestructive testing:II grade of welding joint carries out X-ray inspection X by GJB1187, and the quality control requirement of inspection meets the regulation of QJ3073. II grade of welding joint will by GJB481 Weld Quality Inspection requirement, it is seen that welding joint must carry out visual inspection in 100% ground. Allow to use the lens examination being not more than 10 times to the suspicious welding joint in local. When II grade of welding joint visual appearance is checked, carry out magneticpowder testing by GJB2028.
Step11 polishings:Polishing the weld seam of above-mentioned shell ring, internal diameter weld bead height is not more than 0.2mm, excessively smooth.
Step12 thermal treatments:When above-mentioned weldment enters stove, in-furnace temperature 20 DEG C; After weldment is warming up to 400 DEG C, heating zone heat-up rate is 55 DEG C/h-220 DEG C/h, and should more than 5500/ �� (thermal treatment thickness) DEG C/h; Between weldment temperature raising period, in heating zone, any length is that the temperature difference in 4600mm must not be greater than 120 DEG C; Heat up and during insulation, prevent weldment surface over oxidation; When weldment temperature is higher than 400 DEG C, heating zone cooling rate is 55 DEG C/h-280 DEG C/h, and should more than 7000/ �� DEG C/h; When weldment is come out of the stove, furnace temperature 280 DEG C; Should cool in static air after coming out of the stove.
Postweld heat treatment key points for operation: before 1. postweld heat treatment operates; operator should conscientiously check whether power supply connects correct; whether earth leakage protective device is sensitive; with or without exposed supply lead and joint; well heater porcelain ring is with or without damage; whether insulation meets thermal treatment process card request, and whether ground connection is good for equipment for Heating Processing and pipeline.
2. heat treatment process must perform in strict accordance with the fixed processing parameter of thermal treatment process calliper, has without exception if special messenger observes temperature indicator, during as found abnormal, should stop thermal treatment immediately and find out reason and can proceed.
3., when closing on thermostat temperature 50 DEG C, electric current, voltage should be reduced gradually, so that heat-up rate slows down gradually, seamlessly transit to thermostat temperature.
4. thermal treatment lifting temperature operation is wanted steadily, forbids electrical parameter large span change rapidly.
5., after thermal treatment works, operator should indicate thermal treatment pipeline number, weld bond number, operator's name and date on automation curve figure and write out thermal treatment report.
Thermal treatment process is: when 1. weldment enters stove, and in-furnace temperature must not higher than 400 DEG C.
2., after weldment is warming up to 400 DEG C, heating zone heat-up rate more than 5500/ �� (thermal treatment thickness) DEG C/h, and more than 220 DEG C/h, minimum should should not be not less than 55 DEG C/h.
3., between weldment temperature raising period, in heating zone, any length is that the temperature difference in 4600mm must not be greater than 120 DEG C.
4. heat up and heating zone atmosphere should be controlled during insulation, prevent weldment surface over oxidation.
5., when weldment temperature is higher than 400 DEG C, heating zone cooling rate more than 7000/ �� DEG C/h, and more than 280 DEG C/h, minimum should should not be not less than 55 DEG C/h.
6., when weldment is come out of the stove, furnace temperature higher than 400 DEG C, should must not cool after coming out of the stove in static air.
Heat treatment cycle curve is as shown in the figure.
Step 13 is cleared up:The oxide skin on the mother metal surface after cleaning thermal treatment.
Step 14 is assembled:Selecting 7 shell rings to assemble step by step, composition shell ring I, to shell ring VII, loads internal stay tool by above-mentioned shell ring I to shell ring VII, then circumferential weld internal stay tool step by step, ensures that between shell ring, linearity form and position tolerance is 0-0.4mm; Circumferential weld between each shell ring has welded connection.
Step 15 mechanical workout:The shell ring that above-mentioned assembling is good is carried out mechanical workout, ensures the diameter size 1450 between each shell ring+1 +0.5, verticality is 0.5mm, and planeness is 0.2mm.
Step 16 is rule:Drawing the oblong aperture position line on shell ring I, shell ring IV and shell ring VII, oblong aperture and end face distance on shell ring I are 160mm, and oblong aperture and end face distance on shell ring VII are 140+2 +1And oblong aperture and the end face distance on shell ring IV is 100+2 +1. The circular hole position line drawn again by the shell wall of shell ring VII, has stayed 2mm to cut surplus.
Step 17 perforate:By the cutting of marking-out rule little progress row, and ensure its dimensional requirement.
Step 18 inspection and acceptance:Check and accept by ST-35-SY01, check surface quality, size and size tolerance requirements thereof.
The material of the present invention requires as follows:
Mother metal Q345 material should be undertaken by the technical requirements that GB3274-2007 standard specifies checking and accepting, reviewing, and can put in storage and use after qualified.
The technical requirements that welding wire H10MnSi and welding rod E5015 should strictly specify by standard GB/T12470 and GB/T5117 standard carries out checking and accepting, reviewing, and can put in storage and use after qualified. Welding wire H10MnSi and welding rod E5015 should be strictly on guard against between maintaining period and becomes damp and rotten. Welding rod E5015 certainly in special storehouse dry, that ventilate, must all be not less than 300mm apart from ground with apart from wall, and room temperature is not less than 5 DEG C, and relative air humidity is not more than 60%, it may also be useful to front bake out temperature is 350 DEG C/1h.
Claims (9)
1. the preparation method of weapon barrel, it is characterised in that comprise the steps:
Neck material line blanking plane rumbling welding school, limit circle nondestructive testing polishing thermal treatment cleaning make-up machinery processing line perforate inspection warehouse-in;
Step 1 leads material:Getting sheet material, material surface does not have defect, and sheet material must not have layering; Board surface defect allows cleaning, and cleaning gently without corner angle, and should ensure the permission minimum thickness of sheet material;
Step 2 is rule:Above-mentioned sheet material distance line 100mm place, edge, makes mark and transplants;
Step 3 blanking:By long for above-mentioned sheet material plate gas cutting blanking, plate width is sheared: and the upper layer that the surperficial slag produced when gas cutting is split blanking and impact manufacture is removed by polishing; Sheet material length of run permissible error is 0 1mm; Sheet material two catercorner length difference is 0 1mm; Run-on plate is 100x100mm, and run-on plate thickness is identical with sheet metal thickness, and wall scroll weld seam needs 4 pieces of run-on plates, and namely the initial termination of wall scroll weld seam respectively needs 2 pieces of run-on plates;
Step 4 digs limit:The sheet material groove surface produced during above-mentioned gas cutting blanking must not defectiveness; Behind sheet material plane limit, length of run permissible error is 0 1mm, and two diagonal lines differ from 0 1mm;
Step 5 reel:The longitudinal groove of above-mentioned sheet material rolls inwardly, rolls two ends, direction and first carries out pre-bending, ensures to roll in process on plate without iron filings, foreign material, has rolled formation reel;
Step 6 is cleared up:Clear up above-mentioned reel groove and both sides, the mother metal surface at least oxide skin within the scope of 30mm, greasy dirt, slag and other impurity;
Step 7 group pair:By reel group to tack welding, butt-joint clearance C=0mm, counterpart alignment tolerance b��0.2mm;
Step 8 is welded:Above-mentioned reel being carried out longitudinal measure and becomes shell ring, welding joint grade is decided to be II grade by QJ176A-99;
Step 9 school circle:Shell ring after above-mentioned welding is carried out on plate bending rolls school circle, the splashing of shell ring weld seam, overlap and foreign material will be cleared up, school circle process sweeps the oxide skin split away off in time;
Step 10 nondestructive testing:Above-mentioned II grade of welding joint carries out X-ray inspection X by GJB1187, when II grade of welding joint visual appearance is checked, carries out magneticpowder testing by GJB2028;
Step 11 is polished:Polishing the weld seam of above-mentioned shell ring, internal diameter weld bead height is not more than 0.2mm, excessively smooth;
Step 12 thermal treatment:When shell ring after above-mentioned welding enters stove, in-furnace temperature 20 DEG C; After shell ring is warming up to 400 DEG C, heating zone heat-up rate is 55 DEG C/h-220 DEG C/h, and should more than 5500/ �� (thermal treatment thickness) DEG C/h; Between shell ring temperature raising period, in heating zone, any length is that the temperature difference in 4600mm must not be greater than 120 DEG C; Heat up and during insulation, prevent shell ring surface over oxidation; When shell ring temperature is higher than 400 DEG C, heating zone cooling rate is 55 DEG C/h-280 DEG C/h, and should more than 7000/ �� DEG C/h; When shell ring is come out of the stove, furnace temperature 280 DEG C; Should cool in static air after coming out of the stove;
Step 13 is cleared up:The oxide skin on the mother metal surface after cleaning thermal treatment;
Step 14 is assembled:Internal stay tool, then circumferential weld internal stay tool will be loaded in above-mentioned shell ring step by step, ensure that between shell ring, linearity form and position tolerance is 0-0.4mm; Circumferential weld between each shell ring has welded connection;
Step 15 mechanical workout: the shell ring that above-mentioned assembling is good being carried out mechanical workout, ensures the diameter size �� 1450+1+0.5 between each shell ring, verticality is 0.5mm, and planeness is 0.2mm;
Step 16 is rule:The shell wall of shell ring is drawn the position line, stays cutting surplus;
Step 17 perforate:By the cutting of marking-out rule little progress row, and ensure its dimensional requirement;
Step 18 inspection and acceptance:Check and accept, check surface quality, size and size tolerance requirements thereof.
2. the preparation method of weapon barrel according to claim 1, it is characterised in that in described step 1, sheet material is steel plate Q345, �� 6.
3. the preparation method of weapon barrel according to claim 1, it is characterised in that in described step 2, along sheet material diagonal lines direction, makes two place's marks and transplants.
4. the preparation method of weapon barrel according to claim 1, it is characterised in that in described step 8, cleans out Zai Han lower floor by slag during multi-layer welding, scarfing cinder should carry out after solidifying completely; Selecting E5015 welding rod to weld, bake out temperature is 350 DEG C/1h; Welding process is cleaned out between middle level, clears up after weldering; Internal diameter weld bead height��0.2mm; The round and smooth transition of weld face, weld edge is no more than 3mm along weld seam axial straightness in any 300mm continuous weld length, and welding joint does not exist lack of penetration.
5. the preparation method of weapon barrel according to claim 1, it is characterised in that in described step 10, above-mentioned II grade of welding joint is by GJB481 Weld Quality Inspection requirement, it is seen that welding joint 100% carry out visual inspection; The suspicious welding joint in local uses the lens examination being not more than 10 times.
6. the preparation method of weapon barrel according to claim 1, it is characterised in that in described step 12, put during weldment thermal treatment flat, pad and prevent high temperature unstability; Thermal treatment temp 620 �� 20 DEG C, insulation 0.5 hour.
7. the preparation method of weapon barrel according to claim 1, it is characterised in that in described step 14, selects 7 shell rings to assemble step by step, and composition shell ring I is to shell ring VII.
8. the preparation method of weapon barrel according to claim 7, it is characterized in that in described step 16, drawing the oblong aperture position line on shell ring I, shell ring IV and shell ring VII, oblong aperture and end face distance on shell ring I are 160mm, and oblong aperture and end face distance on shell ring VII are 140+2 +1And oblong aperture and the end face distance on shell ring IV is 100+2 +1��
9. the preparation method of weapon barrel according to claim 7, it is characterised in that in described step 16, the circular hole position line drawn again by the shell wall of shell ring VII, has stayed 2mm to cut surplus.
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| CN110421238B (en) * | 2019-02-11 | 2021-07-30 | 上海振华重工集团(南通)传动机械有限公司 | Welding process for butt welding of high-strength barrel |
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