CN102764960A - Method for manufacturing composite steel plate for hydrogenation reaction kettle barrel - Google Patents
Method for manufacturing composite steel plate for hydrogenation reaction kettle barrel Download PDFInfo
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- CN102764960A CN102764960A CN2012102640179A CN201210264017A CN102764960A CN 102764960 A CN102764960 A CN 102764960A CN 2012102640179 A CN2012102640179 A CN 2012102640179A CN 201210264017 A CN201210264017 A CN 201210264017A CN 102764960 A CN102764960 A CN 102764960A
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- welding
- reaction kettle
- hydrogenation reaction
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- steel plate
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Abstract
The invention discloses a method for manufacturing a composite steel plate for a hydrogenation reaction kettle barrel, and belongs to the field of metal materials. The method includes processing a common carbon steel material with the thickness ranging from 300mm to 600mm and a stainless steel material with the thickness ranging from 10mm to 60mm into blanks with identical lengths and identical width at first; overlapping clean surfaces of the blanks; welding peripheries of the blanks by a welding process combining gas shielded welding, submerged arc welding and vacuum electron beam welding; then heating a composite blank welded in the previous step and rolling composite blank by a heavy and medium plate mill to form the carbon steel and stainless steel composite plate with the thickness higher than 100mm; and finally using the carbon steel and composite plate for manufacturing the hydrogenation reaction kettle barrel. The composite steel plate is excellent in physical performance, corrosion resistance and high-pressure resistance, and requirements of manufacture of the hydrogenation reaction kettle barrel are met completely.
Description
Technical field
The invention belongs to metal material field, be specifically related to the manufacturing approach of a kind of hydrogenation reaction kettle barrel with clad steel plate.
Background technology
Along with continuous progress in science and technology, products such as the required sorbierite of industries such as chemical industry and pharmacy, xylitol all are to adopt hydrogenation reaction kettle equipment to produce.At present, the maximization of equipment is an inexorable trend of its development, and reactor volume is big more, operating pressure in the production process and temperature etc. are required also stricter, as for 30m
3The hydrogenation reaction kettle operating pressure requires to reach 15MPa, and operating temperature will reach 200 ℃.Though the general carbon steel and the agitated reactor of enamel structure can satisfy the requirement of pressure and operating temperature, its decay resistance far can not satisfy the demand of production; If agitated reactor all adopts the stainless steel manufacturing; Though can satisfy decay resistance and operating temperature requirement; But its operating pressure does not reach requirement, meets design requirement in order to make its pressure, and the thickness of stainless steel reaction kettle barrel just must reach more than the 100mm; Its cost can increase substantially like this, is more than three times of ordinary carbon steel.
Proposed to adopt the technology of the compound board materials production hydrogenation reaction kettle barrel of blast technology among the patent CN101584975A " hydrogenation reaction kettle barrel " by carbon steel layer and stainless steel layer; Can address the above problem effectively; And explosion cladding process is to utilize the enormous impact power of explosive charge generation that two kinds of materials are combined; Can produce huge noise, influence surrounding enviroment; Simultaneously because compound mother metal performance (toughness, impact property etc.), explosive property (explosion velocity is stable, safety etc.), initial parameter (unit are explosive charge, basic compound plate spacing etc.) and dynamic parameter (impingement angle, compound plate impact velocity) etc. and the systematic parameter close fit of needing of blast, the yield rate of composite plate and quality are difficult to accurate control; Blast composite algorithm production cost is higher, and the composite plate size is big more, and explode compound conditional request and cost are just high more, adopt this method production large scale composite plate to receive certain restriction.
Summary of the invention
The present invention is in order to overcome the problems referred to above; The manufacturing approach of a kind of hydrogenation reaction kettle barrel with clad steel plate is provided; Adopt ordinary carbon steel blank and the seam all around of 10-60mm stainless steel of gas shielded arc welding, submerged-arc welding and electron-bombardment welding assembled welding process with thickness 300-600mm; The composite blank that welding is good adopts heavy and medium plate mill to be rolled into the carbon steel-stainless steel composite board more than the 100mm after heating again, finally is used for the manufacturing of hydrogenation reaction kettle barrel.Properties of product are good, possess excellent corrosion resistance and high resistance to pressure.
The present invention realizes through following technical scheme: a kind of hydrogenation reaction kettle barrel may further comprise the steps with the manufacturing approach of clad steel plate:
(1) selecting for use all around, the carbon steel blank and the stainless steel blank of same size (be that length, width equate, thickness can be different) are raw material;
Three limits of (2) all carbon steel blanks and stainless steel blank being intended solder side are through the flame cutting or the form finished edge such as dig, mill, groove depth 10-40mm, bevel angle 15-35 °; Carbon steel blank and stainless steel blank are stacked together; Group aligns together, and half-twist vertically places, and adopts the welding manner of gas shielded arc welding then; Carbon steel blank and stainless steel blank there is the welding that feels secure of limit seam on three faces of groove; Adopt Lincoln weld to fill and cover welding again, the limit on the residue face is sewn on carries out the vacuum electron beam welding under the high vacuum at last, assembly welding becomes composite blank;
(3) the composite blank dress bogie-type furnace or the soaking pit heating that connect of butt welding, tapping temperature is controlled at 1160～1280 ℃;
(4) back of coming out of the stove is rolling, adopts the two-stage rolling, 1000～1150 ℃ of phase I start rolling temperatures, and 820～920 ℃ of second stage start rolling temperatures, intermediate blank thickness are not less than 1.4 times of finished product clad steel plate thickness;
(5) carry out slow cooling to rolling the back clad steel plate.
Said step (1) stainless steel sotck thinkness is 10-60mm, and the carbon steel sotck thinkness is 300-600mm.
Said step (2) carbon steel blank and stainless steel blank through machine-tooled methods such as milling machines, planer, are removed the iron scale of treating composite surface, greasy dirt etc. before its welding, realize surface cleaning.
Said step (2) gas shielded arc welding, its gage of wire 1.2-2.0mm, weldingvoltage 20-35V, welding current 120-400A, speed of welding 250-600mm/min, dry extension of electrode degree 15-25mm, protective gas CO
2Or Ar+CO
2, shield gas flow rate 15-25L/min, fusion penetration 5-20mm.
Said step (2) Lincoln weld, its gage of wire 4.0-6.0mm, weldingvoltage 30-45V, welding current 250-1600A, speed of welding 250-600mm/min, dry extension of electrode degree 25-45mm, fusion penetration 10-30mm.
The welding of said step (2) vacuum electron beam, its weldingvoltage 30-150KV, vacuum is higher than 1 * 10
-1Pa, welding current 100-500mA, speed of welding 50-700mm/min, fusion penetration 20-50mm.
The big thickness blank that butt welding of the present invention connects adopts bogie-type furnace or soaking pit to heat, and suitably increases the high temperature section temperature retention time, guarantees that steel plate grills thoroughly, burns evenly.
Adopt the two-stage rolling in the operation of rolling of the present invention, the phase I carry out high temperature low speed depress greatly rolling, through recrystallization process crystal grain thinning repeatedly; Second stage adopts controlled rolling, increases phase deformed nucleus point crystal grain thinning, and 1.4 times of finished product thicknesses of intermediate blank are in order to guarantee the cumulative deformation of the two-stage operation of rolling.
The invention has the beneficial effects as follows: produce the compared with techniques of hydrogenation reaction kettle barrel with the carbon steel stainless steel clad plate with the existing blast complex method that adopts; The present invention adopts gas shielded arc welding, submerged-arc welding and electron-bombardment welding assembled welding process; The big thickness blank that is welded into can increase the compression ratio of mill product steel plate; Therefore carbon steel, stainless compound interface through after the solid-state diffusion under the high temperature, are very easy to combine in follow-up thermal processing distortion process, form an integral body; The bond strength of compound interface is increased substantially, guarantee the stability of product quality.Compare the blast composite algorithm simultaneously, composite technique for rolling equipment is simple, and environment is not almost polluted, and can make full use of existing milling train and be rolled.
The assembly welding mode of gas shielded arc welding, submerged-arc welding and electron-bombardment welding has following advantage:
1, the present invention at first adopts the gas shielded arc welding welding that feels secure to three limits seam of carbon steel and stainless steel slab group, under the prerequisite of not polluting faying face, accomplishes the basis welding automatically and efficiently, and gets ready for next step submerged-arc welding; Adopt the mode of Lincoln weld to accomplish the filling welding of weld seam apace again to this three limits seam then, will remain a limit at last and be sewn under the vacuum environment and use electron-bombardment welding technique, the final welding of completion blank.
2, the present invention adopts permanent order to carry out the technology of welding successively; It or not the simple combination of gas shielded arc welding, submerged-arc welding and electron-bombardment welding; But in strict accordance with the inherent quality requirement of thickness slab preparation greatly; Taken into full account the advantage separately of three kinds of welding manners, with the result of its optimum organization.Can not realize simultaneously that automation improves welding efficiency because gas shielded arc welding can not pollute slab group faying face, Lincoln weld is than a kind of more efficiently welding manner of gas shielded arc welding, and gas shielded arc welding and submerged-arc welding operation are all carried out under home.This Combination Welding order and mode can increase substantially welding efficiency under the prerequisite that guarantees welding requirements (particularly the cleanliness factor to faying face requires), reduced production cost.
3, therefore the present invention can guarantee to keep the gap about 1mm between the blank, and can not form local closed area because the slab group is the vertical direction placement.Electron-bombardment welding has guaranteed that final being welded in the high vacuum accomplish, and has avoided the faying face place to exist the air influence to roll the possibility of back quality.
Description of drawings
Fig. 1 is the compound place's metallographic structure of the carbon steel-stainless steel figure that embodiment 1 produces steel plate.
Implement concrete mode
Below in conjunction with concrete embodiment, this kind hydrogenation reaction kettle barrel is described in detail with the manufacturing process of clad steel plate.
Embodiment 1
Produce the thick carbon steel-stainless steel hydrogenation reaction kettle barrel of 100mm and use clad steel plate:
1) continuous casting steel billet and the 40mm thick 304 stainless steel billets of choosing the thick Q235B material of 300mm respectively are as raw material.
2) three lateral dominances will selecting continuous casting steel billet and stainless steel billet respectively are with flame cutting method finished edge, groove depth 25mm, 25 ° of bevel angles.
3) blank that will accomplish finished edge is removed surperficial iron scale, greasy dirt etc., and two blanks is processed into identical length and width size through milling machine processing.
4) blank that processes is stacked together, group aligns together, and before the welding continuous casting steel billet half-twist that is stacked together is vertically placed.
5) welding manner of employing gas shielded arc welding stitches the welding that feels secure, gage of wire 2.0mm, weldingvoltage 20V, welding current 200A, speed of welding 300mm/min, dry extension of electrode degree 25mm, protective gas CO to three limits that process groove
2, shield gas flow rate 20L/min, fusion penetration 15mm.
6) will stitch through three limits after the gas shielded arc welding bottoming welding, and adopt Lincoln weld to fill and cover welding again, gage of wire 5.0mm, weldingvoltage 40V, welding current 500A, speed of welding 350mm/min, dry extension of electrode degree 30mm, fusion penetration 20mm.
7) remaining sides is sewn on employing vacuum electron beam welding under the condition of high vacuum degree, finally forms the 340mm composite blank.Weldingvoltage 50KV, vacuum 1 * 10
-2Pa, welding current 300mA, speed of welding 150mm/min, fusion penetration 35mm.
8) adopt car type furnace that composite blank is heated, total heat time heating time is more than 12 hours, 1280 ℃ of tapping temperatures.
9) 1120 ℃ of roughing open rollings in the operation of rolling, the roughing process strengthens every time drafts as far as possible, the thick 230mm of intermediate blank; 880 ℃ of finish rolling start rolling temperatures, the adjustment control steel plate template through drafts in the operation of rolling is good.
10) carry out slow cooling to rolling the back clad steel plate.
The 100mm hydrogenation reaction kettle barrel that this technology is made through Combination Welding is used clad steel plate, and the compound place of its carbon steel-stainless steel has obtained good fusion, and is as shown in Figure 1.
Embodiment 2
Produce the thick carbon steel-stainless steel hydrogenation reaction kettle barrel of 120mm and use clad steel plate:
1) continuous casting steel billet and the 40mm thick 304 stainless steel billets of choosing the thick Q235B material of 320mm respectively are as raw material.
2) three lateral dominances will selecting continuous casting steel billet and stainless steel billet respectively are with flame cutting method finished edge, groove depth 35mm, 30 ° of bevel angles.
3) blank that will accomplish finished edge is removed surperficial iron scale, greasy dirt etc., and two blanks is processed into same size through milling machine processing.
4) blank that processes is stacked together after, the group align together, and the welding before the continuous casting steel billet half-twist that is stacked together is vertically placed.
5) welding manner of employing gas shielded arc welding stitches the welding that feels secure, gage of wire 1.5mm, weldingvoltage 25V, welding current 300A, speed of welding 400mm/min, dry extension of electrode degree 20mm, protective gas Ar+CO to three limits that process groove
2, shield gas flow rate 25L/min, fusion penetration 20mm.
6) will stitch through three limits after the gas shielded arc welding bottoming welding, and adopt Lincoln weld to fill and cover welding again, gage of wire 6.0mm, weldingvoltage 45V, welding current 800A, speed of welding 600mm/min, dry extension of electrode degree 45mm, fusion penetration 30mm.
7) remaining sides is sewn on employing vacuum electron beam welding under the condition of high vacuum degree, finally forms the 360mm composite blank.Weldingvoltage 100KV, vacuum 1 * 10
-2Pa, welding current 500mA, speed of welding 200mm/min, fusion penetration 50mm.
8) adopt car type furnace that composite blank is heated, total heat time heating time is more than 12 hours, 1200 ℃ of tapping temperatures.
9) 1050 ℃ of roughing open rollings in the operation of rolling, the roughing process strengthens every time drafts as far as possible, the thick 230mm of intermediate blank; 850 ℃ of finish rolling start rolling temperatures, the adjustment control steel plate template through drafts in the operation of rolling is good.
10) carry out slow cooling to rolling the back clad steel plate.
Claims (5)
1. a hydrogenation reaction kettle barrel is characterized in that with the manufacturing approach of clad steel plate, may further comprise the steps:
(1) carbon steel blank and the stainless steel blank with identical length and width size is raw material;
(2) all carbon steel blanks and stainless steel blank are intended three limit finished edges of solder side, groove depth 10-40mm, bevel angle 15-35 °; Carbon steel and stainless steel blank are stacked together; Group aligns together, and half-twist vertically places, and adopts the welding manner of gas shielded arc welding then; Carbon steel and stainless steel blank there is the welding that feels secure of limit seam on three faces of groove; Adopt Lincoln weld to fill and cover welding again, the limit on the residue face is sewn on carries out the vacuum electron beam welding under the high vacuum at last, assembly welding becomes composite blank;
(3) the composite blank dress bogie-type furnace or the soaking pit heating that connect of butt welding, tapping temperature is controlled at 1160～1280 ℃;
(4) back of coming out of the stove is rolling, adopts the two-stage rolling, 1000～1150 ℃ of phase I start rolling temperatures, and 820～920 ℃ of second stage start rolling temperatures, intermediate blank thickness are not less than 1.4 times of finished product clad steel plate thickness;
(5) carry out slow cooling to rolling the back clad steel plate.
2. a kind of hydrogenation reaction kettle barrel as claimed in claim 1 is characterized in that with the manufacturing approach of clad steel plate said step (1) carbon steel sotck thinkness is 300-600mm, and the stainless steel sotck thinkness is 10-60mm.
3. a kind of hydrogenation reaction kettle barrel as claimed in claim 1 is with the manufacturing approach of clad steel plate,, it is characterized in that; Said gas shielded arc welding, its gage of wire 1.2-2.0mm, weldingvoltage 20-35V; Welding current 120-400A; Speed of welding 250-600mm/min, dry extension of electrode degree 15-25mm, protective gas CO
2Or Ar+CO
2, shield gas flow rate 15-25L/min, fusion penetration 5-20mm.
4. a kind of hydrogenation reaction kettle barrel as claimed in claim 1 is characterized in that with the manufacturing approach of clad steel plate, said Lincoln weld; Its gage of wire 4.0-6.0mm; Weldingvoltage 30-45V, welding current 250-1600A, speed of welding 250-600mm/min; Dry extension of electrode degree 25-45mm, fusion penetration 10-30mm.
5. a kind of hydrogenation reaction kettle barrel as claimed in claim 1 is with the manufacturing approach of clad steel plate,, it is characterized in that, said vacuum electron beam welding, its weldingvoltage 30-150KV, vacuum is higher than 1 * 10
-1Pa, welding current 100-500mA, speed of welding 50-700mm/min, fusion penetration 20-50mm.
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|---|---|---|---|
| CN201210264017.9A CN102764960B (en) | 2012-07-27 | 2012-07-27 | Method for manufacturing composite steel plate for hydrogenation reaction kettle barrel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264017.9A CN102764960B (en) | 2012-07-27 | 2012-07-27 | Method for manufacturing composite steel plate for hydrogenation reaction kettle barrel |
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| Publication Number | Publication Date |
|---|---|
| CN102764960A true CN102764960A (en) | 2012-11-07 |
| CN102764960B CN102764960B (en) | 2014-10-22 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302097A (en) * | 2013-06-29 | 2013-09-18 | 济钢集团有限公司 | Method for rolling carbon steel and low alloy steel large-piece-weight extra thick composite blank |
| CN104117539A (en) * | 2014-06-28 | 2014-10-29 | 济钢集团有限公司 | Composite billet manufacturing and automatic rolling technology for heavy plate mill |
| CN104209660A (en) * | 2013-05-31 | 2014-12-17 | 宝山钢铁股份有限公司 | Composite blank assembly welding groove preparation method |
| CN104708276A (en) * | 2015-02-10 | 2015-06-17 | 李向民 | Method for manufacturing stainless steel composite plate |
| CN105563034A (en) * | 2015-03-26 | 2016-05-11 | 中国科学院金属研究所 | Packaging method for metal construction forming process |
| CN105728492A (en) * | 2016-03-11 | 2016-07-06 | 华中科技大学 | Clad steel plate with yield strength larger than 700 MPa and manufacturing method of clad steel plate |
| CN105771799A (en) * | 2016-03-11 | 2016-07-20 | 华中科技大学 | Composite enameled plate for high-pressure reaction kettle and production method of composite enameled plate |
| CN108213682A (en) * | 2018-01-05 | 2018-06-29 | 鞍钢股份有限公司 | A kind of method for improving vacuum electron beam welder welding efficiency |
| CN110919217A (en) * | 2019-10-23 | 2020-03-27 | 杭州盈铭深冷真空工程有限公司 | Vacuum container stainless steel composite plate and preparation method thereof |
| CN113578966A (en) * | 2021-08-02 | 2021-11-02 | 沈阳科安捷材料技术有限公司 | Production process and device of low-cost high-performance stainless steel composite plate coil |
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| JPH04172190A (en) * | 1990-11-05 | 1992-06-19 | Japan Steel Works Ltd:The | Manufacture of clad steel plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104209660A (en) * | 2013-05-31 | 2014-12-17 | 宝山钢铁股份有限公司 | Composite blank assembly welding groove preparation method |
| CN103302097A (en) * | 2013-06-29 | 2013-09-18 | 济钢集团有限公司 | Method for rolling carbon steel and low alloy steel large-piece-weight extra thick composite blank |
| CN104117539A (en) * | 2014-06-28 | 2014-10-29 | 济钢集团有限公司 | Composite billet manufacturing and automatic rolling technology for heavy plate mill |
| CN104708276A (en) * | 2015-02-10 | 2015-06-17 | 李向民 | Method for manufacturing stainless steel composite plate |
| CN104708276B (en) * | 2015-02-10 | 2017-07-07 | 李向民 | A kind of preparation method of stainless steel clad plate |
| CN105563034A (en) * | 2015-03-26 | 2016-05-11 | 中国科学院金属研究所 | Packaging method for metal construction forming process |
| CN105771799A (en) * | 2016-03-11 | 2016-07-20 | 华中科技大学 | Composite enameled plate for high-pressure reaction kettle and production method of composite enameled plate |
| CN105728492A (en) * | 2016-03-11 | 2016-07-06 | 华中科技大学 | Clad steel plate with yield strength larger than 700 MPa and manufacturing method of clad steel plate |
| CN108213682A (en) * | 2018-01-05 | 2018-06-29 | 鞍钢股份有限公司 | A kind of method for improving vacuum electron beam welder welding efficiency |
| CN108213682B (en) * | 2018-01-05 | 2020-01-07 | 鞍钢股份有限公司 | Method for improving welding efficiency of vacuum electron beam welding machine |
| CN110919217A (en) * | 2019-10-23 | 2020-03-27 | 杭州盈铭深冷真空工程有限公司 | Vacuum container stainless steel composite plate and preparation method thereof |
| CN113578966A (en) * | 2021-08-02 | 2021-11-02 | 沈阳科安捷材料技术有限公司 | Production process and device of low-cost high-performance stainless steel composite plate coil |
| CN113578966B (en) * | 2021-08-02 | 2023-09-19 | 沈阳科安捷材料技术有限公司 | Production process and device for low-cost high-performance stainless steel composite board roll |
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