CN107442598A - A kind of processing technology of stainless steel tube - Google Patents
A kind of processing technology of stainless steel tube Download PDFInfo
- Publication number
- CN107442598A CN107442598A CN201710615561.6A CN201710615561A CN107442598A CN 107442598 A CN107442598 A CN 107442598A CN 201710615561 A CN201710615561 A CN 201710615561A CN 107442598 A CN107442598 A CN 107442598A
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- CN
- China
- Prior art keywords
- middle product
- temperature
- minutes
- time
- pickling
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/085—Iron or steel solutions containing HNO3
Abstract
The invention discloses a kind of processing technology of stainless steel tube, comprise the following steps：(1) bar is chosen；(2) heat-shaping；(3) high-pressure water descaling；(4) perforated using vertical punch；(5) pipe tempering shove charge；(6) pickling：It is surface-treated using 15~20%+1%~2% nitric acid of hydrochloric acid+200 g/l+water of ferrous content, processing time：For 30 60 minutes, temperature was room temperature；(7) antirust treatment：Pipe endoporus oils；(8) LG60 hollow forgings cold rolling：Middle product deoil；Middle product heat treatment；Middle product aligning；Middle product pickling；(9) bis- rollers of LG, 30 middle product cold rolling；Middle product deoil；Middle product heat treatment；Middle product aligning；Middle product pickling；(10) the finished product finish rolling of tri- rollers of LG 40；Middle product deoil；Middle product heat treatment；Middle product aligning；Middle product pickling；(11) antirust neutralisation treatment.Workpiece surface hardness after present invention process processing is high, anti-wear performance is good, rotproofness is good.
Description
Technical field
The present invention relates to bearing steel handling process, specifically a kind of processing technology of stainless steel tube.
Background technology
Stainless-steel pipe is a kind of hollow strip circular steel, is widely used mainly in oil, chemical industry, medical treatment, food, light
The industrial transportation pipe lines such as work, machinery instrument and machine structural parts etc..In addition, when bending, torsional strength are identical, weight compared with
Gently, pickling, it is cleaning metal so being also widely used in manufacture machine components, engineering structure, conventional weapon, gun barrel and shell etc.
A kind of method on surface, wherein stainless-steel pipe can be divided into two major classes, and one kind is the simple chromium steel more than 12% containing inscription, separately
One kind is to add the steel of other elements again on the basis of the simple chromium steel of the quantum mechanics more than 12% containing inscription.
The corrosion resistant performance of stainless steel can be reduced based on the chromium carbide that carbon and chromium are combined into, thus the phosphorus content of stainless steel compared with
Low, general phosphorus content is premature.In the range of 0.1~0.2%, no more than the phase of crossing 0.4%.
The content of the invention
The invention provides a kind of processing technology of stainless steel tube, to solve above-mentioned technical problem.
A kind of processing technology of stainless steel tube, comprises the following steps：
(1) bar is chosen；
(2) heat-shaping；
(3) high-pressure water descaling；
(4) perforated using vertical punch, piercing temperature is at 1140~1180 DEG C；
(5) pipe tempering shove charge, heating-up temperature are 800~850 DEG C, 20 revs/min of rotating speed, holding temperature：740~780 DEG C,
The stove inside holding time：3.5 hours natural air coolings：More than 8 hours；
(6) pickling：Carried out using 15~20%+1%~2% nitric acid of hydrochloric acid+200 g/l+water of ferrous content at surface
Reason, processing time：For 30-60 minutes, temperature is room temperature；
(7) antirust treatment：Pipe endoporus oils；
(8) LG60 hollow forgings cold rolling：￠ 67*5 roll 38*2.5,700~750 turns of rotary speed, feed：5mm/ times；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 38*2.6, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：
50~60 revs/min, soaking time：60~70 minutes, air cooling time：More than 8 hours；
Middle product aligning：Routinely technological operation；
Middle product pickling：Carried out using 15~20%+1%~2% nitric acid of hydrochloric acid+ferrous content g/l+water at surface
Reason, processing time：For 30~60 minutes, temperature was room temperature；
(9) bis- rollers of LG, 30 middle product cold rolling：￠ 38*2.6 roll 22*1.8, and routinely processing technology operates；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 22*1.8, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：
60~70 revs/min, soaking time：50~60 minutes, air cooling time：More than 8 hours；
Middle product aligning：Routinely technological operation；
Middle product pickling：Carried out using 15~20%+1%~2% nitric acid of hydrochloric acid+ferrous content g/l+water at surface
Reason, processing time：For 30~60 minutes, temperature was room temperature；
(10) the finished product finish rolling of tri- rollers of LG 40：19.05*1.65 routinely processing technology operates；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 19.05*1.65, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C,
Rotating speed：50~60 revs/min, soaking time：65~75 minutes, air cooling time：More than 8 hours, surface color：Rust；
Middle product aligning：Routinely technological operation；
Middle product pickling：Carried out using 15~20%+2%~3% nitric acid of hydrochloric acid+ferrous content g/l+water at surface
Reason, processing time：For 30~60 minutes, temperature was room temperature；
(11) antirust neutralisation treatment：Steel pipe is soaked using 100 DEG C of steam clear water, is quickly evaporated after playing cylinder, is matched somebody with somebody with sodium carbonate
Neutralizer processed, the concentration of sodium carbonate is 5~10%, neutralizes 2~5 minutes time, is carried out under greenhouse.
Beneficial effects of the present invention：
The processing technology of this stainless steel tube of the present invention, intensity, hardness, wearability and the anti-corrosion property of steel pipe can have
Improved.
Embodiment
Embodiments of the invention are described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Below by way of specific embodiment, the present invention will be described in detail.
The present invention comprises the following steps：
(1) bar is chosen；
(2) heat-shaping；
(3) high-pressure water descaling；
(4) perforated using vertical punch, piercing temperature is at 1140~1180 DEG C；
(5) pipe tempering shove charge, heating-up temperature are 800~850 DEG C, 20 revs/min of rotating speed, holding temperature：740~780 DEG C,
The stove inside holding time：3.5 hours natural air coolings：More than 8 hours；
(6) pickling：Carried out using 15~20%+1%~2% nitric acid of hydrochloric acid+200 g/l+water of ferrous content at surface
Reason, processing time：For 30-60 minutes, temperature is room temperature；
(7) antirust treatment：Pipe endoporus oils；
(8) LG60 hollow forgings cold rolling：￠ 67*5 roll 38*2.5,700~750 turns of rotary speed, feed：5mm/ times；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 38*2.6, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：
50~60 revs/min, soaking time：60~70 minutes, air cooling time：More than 8 hours；
Middle product aligning：Routinely technological operation；
Middle product pickling：Carried out using 15~20%+1%~2% nitric acid of hydrochloric acid+ferrous content g/l+water at surface
Reason, processing time：For 30~60 minutes, temperature was room temperature；
(9) bis- rollers of LG, 30 middle product cold rolling：￠ 38*2.6 roll 22*1.8, and routinely processing technology operates；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 22*1.8, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：
60~70 revs/min, soaking time：50~60 minutes, air cooling time：More than 8 hours；
Middle product aligning：Routinely technological operation；
Middle product pickling：Carried out using 15~20%+1%~2% nitric acid of hydrochloric acid+ferrous content g/l+water at surface
Reason, processing time：For 30~60 minutes, temperature was room temperature；
(10) the finished product finish rolling of tri- rollers of LG 40：19.05*1.65 routinely processing technology operates；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 19.05*1.65, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C,
Rotating speed：50~60 revs/min, soaking time：65~75 minutes, air cooling time：More than 8 hours, surface color：Rust；
Middle product aligning：Routinely technological operation；
Middle product pickling：Carried out using 15~20%+2%~3% nitric acid of hydrochloric acid+ferrous content g/l+water at surface
Reason, processing time：For 30~60 minutes, temperature was room temperature；
(11) antirust neutralisation treatment：Steel pipe is soaked using 100 DEG C of steam clear water, is quickly evaporated after playing cylinder, is matched somebody with somebody with sodium carbonate
Neutralizer processed, the concentration of sodium carbonate is 5~10%, neutralizes 2~5 minutes time, is carried out under greenhouse.
The embodiments of the present invention described above are not intended to limit the scope of the present invention, any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (1)
1. a kind of processing technology of stainless steel tube, it is characterised in that comprise the following steps：
(1) bar is chosen；
(2) heat-shaping；
(3) high-pressure water descaling；
(4) perforated using vertical punch, piercing temperature is at 1140~1180 DEG C；
(5) pipe tempering shove charge, heating-up temperature are 800~850 DEG C, 20 revs/min of rotating speed, holding temperature：740~780 DEG C, in stove
Soaking time：3.5 hours natural air coolings：More than 8 hours；
(6) pickling：It is surface-treated, is located using 15~20%+1%~2% nitric acid of hydrochloric acid+200 g/l+water of ferrous content
Manage the time：For 30-60 minutes, temperature is room temperature；
(7) antirust treatment：Pipe endoporus oils；
(8) LG60 hollow forgings cold rolling：￠ 67*5 roll 38*2.5,700~750 turns of rotary speed, feed：5mm/ times；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 38*2.6, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：50~
60 revs/min, soaking time：60~70 minutes, air cooling time：More than 8 hours；
Middle product aligning：Routinely technological operation；
Middle product pickling：It is surface-treated, is located using 15~20%+1%~2% nitric acid of hydrochloric acid+ferrous content g/l+water
Manage the time：For 30~60 minutes, temperature was room temperature；
(9) bis- rollers of LG, 30 middle product cold rolling：￠ 38*2.6 roll 22*1.8, and routinely processing technology operates；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 22*1.8, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：60~
70 revs/min, soaking time：50~60 minutes, air cooling time：More than 8 hours；
Middle product aligning：Routinely technological operation；
Middle product pickling：It is surface-treated, is located using 15~20%+1%~2% nitric acid of hydrochloric acid+ferrous content g/l+water
Manage the time：For 30~60 minutes, temperature was room temperature；
(10) the finished product finish rolling of tri- rollers of LG 40：19.05*1.65 routinely processing technology operates；
Middle product deoil：The nitric acid of 15%~20% hydrochloric acid+1%~2%, deoils the time：30~60 minutes；
Middle product heat treatment：Tube rolling 19.05*1.65, charging temperature：750~800 DEG C, heating-up temperature：800~840 DEG C, rotating speed：
50~60 revs/min, soaking time：65~75 minutes, air cooling time：More than 8 hours, surface color：Rust；
Middle product aligning：Routinely technological operation；
Middle product pickling：It is surface-treated, is located using 15~20%+2%~3% nitric acid of hydrochloric acid+ferrous content g/l+water
Manage the time：For 30~60 minutes, temperature was room temperature；
(11) antirust neutralisation treatment：Steel pipe is soaked using 100 DEG C of steam clear water, is quickly evaporated after playing cylinder, in being prepared with sodium carbonate
And liquid, the concentration of sodium carbonate is 5~10%, neutralizes 2~5 minutes time, is carried out under greenhouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615561.6A CN107442598A (en) | 2017-07-26 | 2017-07-26 | A kind of processing technology of stainless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615561.6A CN107442598A (en) | 2017-07-26 | 2017-07-26 | A kind of processing technology of stainless steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107442598A true CN107442598A (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710615561.6A Pending CN107442598A (en) | 2017-07-26 | 2017-07-26 | A kind of processing technology of stainless steel tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114602996A (en) * | 2022-03-25 | 2022-06-10 | 宝银特种钢管有限公司 | Manufacturing method of ultrathin seamless tube for high-end equipment system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH106769A (en) * | 1996-06-20 | 1998-01-13 | Nisshin Kokan Kk | Bracket integral type door impact beam and its manufacture |
| CN102010961A (en) * | 2010-09-27 | 2011-04-13 | 苏州奕欣特钢管业有限公司 | Process for producing steel tubes |
| CN106180254A (en) * | 2016-09-26 | 2016-12-07 | 中国科学院上海应用物理研究所 | A kind of preparation method of the nickel of resistance to fused salt corrosion molybdenum evanohm seamless pipe |
-
2017
- 2017-07-26 CN CN201710615561.6A patent/CN107442598A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH106769A (en) * | 1996-06-20 | 1998-01-13 | Nisshin Kokan Kk | Bracket integral type door impact beam and its manufacture |
| CN102010961A (en) * | 2010-09-27 | 2011-04-13 | 苏州奕欣特钢管业有限公司 | Process for producing steel tubes |
| CN106180254A (en) * | 2016-09-26 | 2016-12-07 | 中国科学院上海应用物理研究所 | A kind of preparation method of the nickel of resistance to fused salt corrosion molybdenum evanohm seamless pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114602996A (en) * | 2022-03-25 | 2022-06-10 | 宝银特种钢管有限公司 | Manufacturing method of ultrathin seamless tube for high-end equipment system |
| CN114602996B (en) * | 2022-03-25 | 2023-01-24 | 宝银特种钢管有限公司 | Manufacturing method of ultrathin seamless tube for high-end equipment system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20171208 |