CN105965212B - A kind of bimetallic clad steel plate threeway method of manufacturing technology - Google Patents
A kind of bimetallic clad steel plate threeway method of manufacturing technology Download PDFInfo
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- CN105965212B CN105965212B CN201610471554.9A CN201610471554A CN105965212B CN 105965212 B CN105965212 B CN 105965212B CN 201610471554 A CN201610471554 A CN 201610471554A CN 105965212 B CN105965212 B CN 105965212B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000007689 inspection Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims abstract description 10
- 238000002161 passivation Methods 0.000 claims abstract description 10
- 238000002788 crimping Methods 0.000 claims abstract description 7
- 238000002474 experimental method Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 6
- 238000009659 non-destructive testing Methods 0.000 claims description 6
- 238000012797 qualification Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000011094 fiberboard Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002932 luster Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 210000002826 placenta Anatomy 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 3
- 238000013000 roll bending Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of bimetallic clad steel plate threeway method of manufacturing technology, its processing step are：The buying of raw material, recheck；Welding heat treatment simulated experiment, Product Process make a reservation for；Blanking, steel pipe it is prefabricated；Pipe crimping welds；It is compressing；Heat treatment；Inner and outer surfaces processing；Nondestructive inspection；Groove；Acid wash passivation processing；Finished product detection.
Description
Technical field
The present invention relates to metal tube, the processing of metal tube and pipe-line system technical field is produced with the mode of rolling, especially
It is a kind of bimetallic clad steel plate threeway method of manufacturing technology.
Background technology
Before carrying out dual-metal clad steel pipe part (pipe line steel+N08825) trial-production at home, external pipe fitting manufacturing enterprise
Produce composite pipe product, and in Turkmenistan natural gas line conveying engineering one phase project, applied,
But the nickel base alloy layer of external product, using bead-welding technology, from technical standpoint, there is difficulty, and price is held high
It is expensive, delivery cycle is longer, so the second stage of the project petrochina is based oneself upon, support is domestic to have mature experience and good in conventional oil-gas pipeline
The Ji Jia suppliers of good achievement carry out the trial-production of new product.
The content of the invention
The object of the present invention is to provide a kind of stable mechanical performance, efficient bimetallic clad steel plate threeway manufacture work
Process.
This technique is by studying three universal steel plate constituent analyses, performance point after three-way welding technique and threeway heat treatment
Analysis, determines wlding selection, welding condition and heat treatment process, makes the mechanical performance and metallographic of threeway after shaping and heat treatment
Tissue meets standard requirement.
Choose suitable wlding and reasonable welding procedure；
Take the heat treatment process of repeated hardening.
Threeway manufacture main technological steps (see Fig. 1)：
(1) buying, the reinspection of raw material：
Buying belongs to metallurgical compound Explosion composite steel plate (high-strength steel+Nickel-Based Steel), and the material of buying is carried out
Chemistry into
Point, mechanical performance, adhesive strength, corrosion resistance etc. are examined and experiment, while carries out ultrasound examination one by one, examine
Survey
Whether base material has peeling with the presence or absence of internal flaw and faying face.
(2) welding heat treatment simulated experiment, Product Process make a reservation for
The test plate (panel) of three pieces of 300mm*600mm is being extracted in qualified sheet stock by rechecking, along long side direction in plate
Wide centre outputs the groove of X-type with plasma, and groove is polished the heat affected area that metallic luster removes cutting, this three
Welding manner the N06625 welding wires and CHE607GX welding rods that block test plate (panel) is welded according to the welding procedure simulation pipe crimping of assessment of conformity
Test piece for welding is welded into, test piece for welding determines the jointly applicable heat treatment temperature of two kinds of materials after Non-Destructive Testing qualification
Parameter area is spent, within this range, preferably goes out most suitably used specific heating and heat treatment parameter；
(3) blanking, steel pipe it is prefabricated
According to product and technological requirement, by art work sheet setting-out, cutting stock on the steel plate, Numerical control cutting machine-cut is selected
Cut；Design specialized cuts production district, ensures the accurate of material blanking；
(4) pipe crimping welds
According to technological requirement, steel plate is rolled into cylindrical shape on veneer reeling machine, and pipe longitudinal joint is welded, after the circle of school
Form the blank of manufacture threeway；Before roll bending, fiberboard on clad surface bedding, avoids occurring coating metal stroke in coiling process
Wound and coating are contacted with carbon steel tooling device, are ensured to hold successfully after X-type groove staggered edge free and straight flange phenomenon at counterpart, will be used in groove
After the method for Ji Xie Xiu mills removes the heat affected area of thermal cutting, with stainless steel wire wheel by each 50mm inner surfaces in groove and both sides
Polishing is clean, the basic unit of pipe, transition zone, coating is successively welded according to the welding procedure of assessment of conformity, during welding
Basic unit, transition zone, coating throat thickness are monitored at any time, reach standard requirement, while the heat input and layer of stringent control welding
Between temperature, and the degree of gas shield and the successively cleanliness factor of back chipping ensure that welding bead quality reaches highest standard, avoid existing
Stomata, slag inclusion shortcoming, source of corrosion is caused to pipe fitting, so not only ensure that deposited metal possessed good mechanical property, but also improve
Its erosion-resisting ability；
(5) it is compressing
The three-way pipe billet through Non-Destructive Testing qualification loads in gas heating furnace and heats after welding job is completed, in hydraulic pressure
Compression molding is carried out on machine, its overall process process is：Bulge-perforate-redraing branch pipe-the master of flattening-fourth contact-three times
Guan Jiaoyuan-go end-round mouth, first will ensure that pipe is heated by predetermined heating schedule in pressing process, control programming rate
≤ 200 DEG C/h, 950 DEG C of ± 10 DEG C of insulations compacting of coming out of the stove in 30 ± 10min minutes is warming up to, base pipe is strictly controlled during bulge
The immersion amount of weld seam side tube body, ensures that the tyre bead of placenta of the immersion line with going out branch pipe flushes, and the strictly whole pushing of monitoring
Process, control threeway side wall does not allow some indent phenomenons occur, avoids coating metal from fold occur, in forming process, with covering
High temperature resistant talcum powder is all coated on all moulds of industrial equipment surfaces of layer contact, can not only play lubricating action, but also can be to avoid pipe
Coating is contacted with carbon steel moulds of industrial equipment during part high temperature, and pipe must be placed on outside stove after every time compacting or drawing and treat
The temperature of pipe reenters stove and carries out reheating when being down to below AC1, thus avoid deformation position from being continuously in lower critical for a long time
Point temperatures above and cause that metal grain degree is thick to wait superheating phenomenon, both there is standard by the control product of process above
Round and smooth presentation quality has due good organization's state before heat treatment again, and three-way forming, go after end, school circle to its main ruler
It is very little to measure；
(6) it is heat-treated
According to quenching plus tempering heat treatment process, during quenching, charging temperature≤300 DEG C, programming rate is controlled≤200
DEG C/h, kept the temperature when being warming up to 940 DEG C~960 DEG C, soaking time control is cooled down in pure water in 30~45min, and when tempering enters
Furnace temperature≤300 DEG C, programming rate are controlled in≤200 DEG C/h, kept the temperature when being warming up to 520 DEG C~560 DEG C, and soaking time control exists
40~60min is cooled down in atmosphere；
(7) inner and outer surfaces are handled
Reconditioning processing is carried out to threeway surfaces externally and internally；Processing grade reaches Sa3.2 grades；
(8) nondestructive inspection
Penetrant inspection and ultrasonic inspection are carried out to threeway tube body；Radiographic inspection and ultrasonic inspection are carried out to weld seam；
(9) groove
Groove is machined out to threeway pipe end, ensures coating inner diameter deviation ＜ 0.5mm, coating wall thickness deviation+2mmm/-
0.5mm.
(10) acid wash passivation is handled
Brushing acid wash passivation processing is carried out to threeway inner wall using acid wash passivation liquid, the cleaning at residual night is carried out after qualified and is done
It is dry.
(11) finished product detection
Carry out physical dimension and shape position error detection piece by piece to finished product threeway on platform by standard, while carry out nothing piece by piece
Damage detection.And extract sample part and carry out physicochemical property and corrosion resistance detection.
Brief description of the drawings
Fig. 1 is bimetallic clad steel plate threeway manufacturing process process flow chart
Embodiment
The present invention is described in further detail below.
(1) buying, the reinspection of raw material：
The Explosion composite steel plate of Sichuan Jinglei Science ＆ Technology Co., Ltd.'s production is purchased, and chemistry is carried out to the material of buying
Component, mechanical performance, adhesive strength, corrosion resistance etc. are examined and experiment, while carries out ultrasound examination one by one, detects basic unit
Whether material has peeling with the presence or absence of internal flaw and faying face.
(2) welding heat treatment simulated experiment, Product Process make a reservation for
The test plate (panel) of three pieces of 300mm*600mm is being extracted in qualified sheet stock by rechecking, along long side direction in plate
Wide centre outputs the groove of X-type with plasma, and groove is polished the heat affected area that metallic luster removes cutting, this three
Welding manner the N06625 welding wires and CHE607GX welding rods that block test plate (panel) is welded according to the welding procedure simulation pipe crimping of assessment of conformity
Test piece for welding is welded into, test piece for welding determines the jointly applicable heat treatment temperature of two kinds of materials after Non-Destructive Testing qualification
Parameter area is spent, within this range, preferably goes out most suitably used specific heating and heat treatment parameter；
Heat treatment process parameter and the results of property such as following table of test piece for welding：
(3) blanking, steel pipe it is prefabricated
According to product and technological requirement, by art work sheet setting-out, cutting stock on the steel plate, Numerical control cutting machine-cut is selected
Cut；Design specialized cuts production district, ensures the accurate of material blanking；
(4) pipe crimping welds
The threeway specification of this trial-production is φ 610 × 610 × 610 × 29mm equal tees, according to design by steel plate big
The tubular pipe of 780 × 975mm of φ is rolled on type rolling machine, before roll bending, fiberboard on clad surface bedding, avoids rolling
During occur coating metal scratch and coating contacted with carbon steel tooling device.Staggered edge free at counterpart is held after X-type groove in guarantee successfully
With straight flange phenomenon.After the method that Yong Ji Xie Xiu in groove are ground removes the heat affected area of thermal cutting, with stainless steel wire wheel by slope
Each 50mm inner surfaces polishing in mouthful and both sides is clean, according to the welding procedure of assessment of conformity to the basic unit of pipe, transition zone, coating
Successively welded.Basic unit, excessive layer, coating throat thickness are monitored during welding at any time, reaches standard requirement, while stringent control
Make the heat input and interlayer temperature of welding, and the degree of gas shield and the successively cleanliness factor of back chipping, guarantee welding bead quality
Reach highest standard, avoid, there are the shortcoming such as stomata, slag inclusion, source of corrosion being caused to pipe fitting, so both ensure that deposited metal had
Standby good mechanical property, and improve its erosion-resisting ability.The requirement (internal diameter φ 569) alignd according to threeway internal diameter, I
Company uses the outside diameter specially designed and produced to be suppressed for the threeway mould of 635mm.
(5) it is compressing
The three-way pipe billet through Non-Destructive Testing qualification loads in gas heating furnace and heats after welding job is completed, in hydraulic pressure
Compression molding is carried out on machine, its overall process process is：Bulge-perforate-redraing branch pipe-the master of flattening-fourth contact-three times
Guan Jiaoyuan-go end-round mouth, first will ensure that pipe is heated by predetermined heating schedule in pressing process, control programming rate
≤ 200 DEG C/h, 950 DEG C of ± 10 DEG C of insulations compacting of coming out of the stove in 30 ± 10min minutes is warming up to, base pipe is strictly controlled during bulge
The immersion amount of weld seam side tube body, ensures that the tyre bead of placenta of the immersion line with going out branch pipe flushes, and the strictly whole pushing of monitoring
Process, control threeway side wall does not allow some indent phenomenons occur, avoids coating metal from fold occur, in forming process, with covering
High temperature resistant talcum powder is all coated on all moulds of industrial equipment surfaces of layer contact, can not only play lubricating action, but also can be to avoid pipe
Coating is contacted with carbon steel moulds of industrial equipment during part high temperature, and pipe must be placed on outside stove after every time compacting or drawing and treat
The temperature of pipe reenters stove and carries out reheating when being down to below AC1, thus avoid deformation position from being continuously in lower critical for a long time
Point temperatures above and cause that metal grain degree is thick to wait superheating phenomenon, both there is standard by the control product of process above
Round and smooth presentation quality has due good organization's state before heat treatment again, and three-way forming, go after end, school circle to its main ruler
It is very little to measure；, as a result meet the requirement of machining finished product, measured value see the table below：
Key dimension measured value unit in threeway end after shaping:mm
(6) it is heat-treated
According to quenching plus tempering heat treatment process, during quenching, charging temperature≤300 DEG C, programming rate is controlled≤200
DEG C/h, kept the temperature when being warming up to 940 DEG C~960 DEG C, soaking time control is cooled down in pure water in 30~45min, and when tempering enters
Furnace temperature≤300 DEG C, programming rate are controlled in≤200 DEG C/h, kept the temperature when being warming up to 520 DEG C~560 DEG C, and soaking time control exists
40~60min is cooled down in atmosphere；
(7) inner and outer surfaces are handled
Reconditioning processing is carried out to threeway surfaces externally and internally；Processing grade reaches Sa3.2 grades；
(8) nondestructive inspection
Penetrant inspection and ultrasonic inspection are carried out to threeway tube body；Radiographic inspection and ultrasonic inspection are carried out to weld seam；
(9) groove
Groove is machined out to threeway pipe end, ensures coating inner diameter deviation ＜ 0.5mm, coating wall thickness deviation+2mmm/-
0.5mm.
(10) acid wash passivation is handled
Brushing acid wash passivation processing is carried out to threeway inner wall using acid wash passivation liquid, the cleaning at residual night is carried out after qualified and is done
It is dry.
(11) finished product detection
Carry out physical dimension and shape position error detection piece by piece to finished product threeway on platform by standard, while carry out nothing piece by piece
Damage detection.And extract sample part and carry out physicochemical property and corrosion resistance detection.
Bimetallic clad steel plate system (L415MS+N08825) threeway has passed through China National Petroleum pipeline science
The detection evaluation of research institute's testing of materials center (mechanical property) and China University Of Petroleum Beijing's (corrosion resistance test), mechanics properties testing
" threeway report number is shown in report：PMC-N1311775-CZHT ", threeway corrosion resistance test report number：2013 oil tell fortune by analysing the component parts of a Chinese character【M】
No. 306, No. 266, No. 267, No. 268, No. 269, No. 270, No. 272, No. 273, No. 274.Product
It is reliable and stable to design reasonable quality, has reached the object performance index of similar products at home and abroad.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with this field technology
Personage can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to this hair
The equivalent change or modification that bright Spirit Essence is made, effect is similar, should all cover within the scope of the present invention.
Claims (6)
1. a kind of bimetallic clad steel plate threeway method of manufacturing technology, it is characterised in that its processing step is：
(1) buying, the reinspection of raw material：
Buying belongs to metallurgical compound Explosion composite steel plate, and the raw material Explosion composite steel plate of buying is carried out chemical composition,
The inspection and experiment of mechanical performance, adhesive strength, corrosion resistance, while ultrasound examination is carried out one by one, detect base material
Whether there is peeling with the presence or absence of internal flaw and faying face；
(2) welding heat treatment simulated experiment, Product Process make a reservation for
The test plate (panel) of three pieces of 300mm*600mm is being extracted in qualified sheet stock by rechecking, it is wide in plate along long side direction
Centre outputs the groove of X-type with plasma, and groove is polished to the heat affected area of metallic luster removal cutting, this three pieces examinations
Plate is welded according to the welding manner of the welding procedure simulation pipe crimping welding of assessment of conformity with N06625 welding wires and CHE607GX welding rods
As test piece for welding, test piece for welding determines the jointly applicable heat treatment temperature ginseng of two kinds of materials after Non-Destructive Testing qualification
Number scope；
(3) blanking, steel pipe it is prefabricated
According to product and technological requirement, by art work sheet setting-out, cutting stock on the steel plate；
(4) pipe crimping welds
According to technological requirement, steel plate is rolled into cylindrical shape on veneer reeling machine, and pipe longitudinal joint is welded, is formed after the circle of school
Manufacture the blank of threeway；Before roll bending, fiberboard on clad surface bedding, avoid occurring in coiling process coating metal scratch and
Coating is contacted with carbon steel tooling device, and staggered edge free and straight flange phenomenon at counterpart are held after X-type groove in guarantee successfully, will be in groove with machinery
After the method for Xiu mills removes the heat affected area of thermal cutting, each 50mm inner surfaces in groove and both sides are polished with stainless steel wire wheel
Totally, the basic unit of pipe, transition zone, coating are successively welded according to the welding procedure of assessment of conformity, during welding at any time
Monitor basic unit, transition zone, coating throat thickness；
(5) it is compressing
The three-way pipe billet through Non-Destructive Testing qualification loads in gas heating furnace and heats after welding job is completed, on a hydraulic press
Carry out compression molding；
(6) it is heat-treated
According to quenching plus tempering heat treatment process, during quenching, charging temperature≤300 DEG C, programming rate control in≤200 DEG C/h,
Kept the temperature when being warming up to 940 DEG C~960 DEG C, soaking time control is cooled down in pure water in 30~45min, and when tempering enters furnace temperature
≤ 300 DEG C of degree, programming rate control are kept the temperature when being warming up to 520 DEG C~560 DEG C in≤200 DEG C/h, soaking time control 40~
60min is cooled down in atmosphere；
(7) inner and outer surfaces are handled
Reconditioning processing is carried out to threeway surfaces externally and internally；Processing grade reaches Sa3.2 grades；
(8) nondestructive inspection
Penetrant inspection and ultrasonic inspection are carried out to threeway tube body；Radiographic inspection and ultrasonic inspection are carried out to weld seam；
(9) groove
Groove is machined out to threeway pipe end, ensures coating inner diameter deviation ＜ 0.5mm, coating wall thickness deviation+2mm/-0.5mm；
(10) acid wash passivation is handled
Brushing acid wash passivation processing is carried out to threeway inner wall using acid wash passivation liquid, the cleaning and drying at residual night are carried out after qualified；
(11) finished product detection
Carry out physical dimension and shape position error detection piece by piece to finished product threeway on platform by standard, while carry out lossless inspection piece by piece
Survey；And extract sample part and carry out physicochemical property and corrosion resistance detection.
A kind of 2. bimetallic clad steel plate threeway method of manufacturing technology according to claim 1, it is characterised in that step
(1) the Explosion composite steel plate in is mutually compound using high-strength steel and Nickel-Based Steel.
A kind of 3. bimetallic clad steel plate threeway method of manufacturing technology according to claim 1, it is characterised in that step
(2) the jointly applicable heat treatment temperature parameter area of with good grounds two kinds of materials is further included in, determines most suitably used specific heating
And the step of heat treatment parameter.
A kind of 4. bimetallic clad steel plate threeway method of manufacturing technology according to claim 1, it is characterised in that step
(3) cutting described in selects numerical control cutting machine to be cut in cutting production district, ensures the accurate cutting of material blanking.
A kind of 5. bimetallic clad steel plate threeway method of manufacturing technology according to claim 1, it is characterised in that step
(4) to the heat input and interlayer temperature of welding, and the degree of gas shield and the successively cleaning of back chipping in welding process in
Degree is detected and controls.
A kind of 6. bimetallic clad steel plate threeway method of manufacturing technology according to claim 1, it is characterised in that step
(5) process of compression molding includes in：Bulge-perforate-redraing the branch pipe of flattening-fourth contact-three times-supervisor school circle-
Remove end-round mouth, first will ensure that pipe is heated by predetermined heating schedule in pressing process, control programming rate≤200 DEG C/
H, is warming up to 950 DEG C ± 10 DEG C, keeps the temperature compacting of coming out of the stove in 30 ± 10min minutes, and base pipe weld seam one is strictly controlled during bulge
The immersion amount of side pipe body, ensures that the tyre bead of placenta of the immersion line with going out branch pipe flushes, and the strictly whole pushing process of monitoring, control
Threeway side wall processed does not allow some indent phenomenons occur, avoids coating metal from fold occur, in forming process, with coating contacts
High temperature resistant talcum powder is all coated on all moulds of industrial equipment surfaces, and pipe must be placed on after every time compacting or drawing
Stove is reentered outside stove when the temperature of pipe is down to below AC1 and carries out reheating, three-way forming, go to end, school main to its after justifying
Size measures.
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Address after: 061300 Zhenggang Industrial Park, Yanshan County, Cangzhou City, Hebei Province Patentee after: Hebei Hengtong Group Yupeng Heavy Engineering Technology Co.,Ltd. Address before: 061300 Zhenggang Industrial Park, Yanshan County, Cangzhou City, Hebei Province Patentee before: HEBEI YUPENG HEAVY INDUSTRY TECHNOLOGY Co.,Ltd. Address after: 061300 Zhenggang Industrial Park, Yanshan County, Cangzhou City, Hebei Province Patentee after: HEBEI YUPENG HEAVY INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 061300 Zhenggang Industrial Park, Yanshan County, Cangzhou City, Hebei Province Patentee before: HEBEI YUPENG HEAVY INDUSTRY PIPELINE EQUIPMENT MANUFACTURING Co.,Ltd. |
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Effective date of registration: 20210611 Address after: 061000 houhan village, Hanji Town, Yanshan County, Cangzhou City, Hebei Province Patentee after: Hebei Hengtong Pipe Fittings Group Co.,Ltd. Address before: 061300 Zhenggang Industrial Park, Yanshan County, Cangzhou City, Hebei Province Patentee before: Hebei Hengtong Group Yupeng Heavy Engineering Technology Co.,Ltd. |
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Denomination of invention: A manufacturing process method for tees made of bimetallic composite steel plates Granted publication date: 20180420 Pledgee: Bank of China Limited by Share Ltd. Cangzhou branch Pledgor: Hebei Hengtong Pipe Fittings Group Co.,Ltd. Registration number: Y2024980035567 |