CN107096806A - A kind of processing method of high-strength accurate steel pipe - Google Patents
A kind of processing method of high-strength accurate steel pipe Download PDFInfo
- Publication number
- CN107096806A CN107096806A CN201710373101.7A CN201710373101A CN107096806A CN 107096806 A CN107096806 A CN 107096806A CN 201710373101 A CN201710373101 A CN 201710373101A CN 107096806 A CN107096806 A CN 107096806A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- cold
- drawn
- quenched
- stress relief
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
- B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
Abstract
A kind of processing method of high-strength accurate steel pipe, comprises the following steps：(1) surface lubrication is handled：Removing oxide layer backlash wash clean is gone using hydrochloric acid or aqueous sulfuric acid immersion, is put into middle conjunction groove and closes.(2) first time cold-drawn：Make steel pipe in the inside and outside die deformation set using hydraulic drawbench, reach the size requirement of precision.(3) it is heat-treated：Steel pipe microstructural defects are eliminated by normalizing and the heat treatment method such as quenched after first time cold-drawn.(4) second of cold-drawn of finished product：Normalizing or it is quenched after be surface-treated after cold-drawn again.(5) stress relief annealing：After finished product cold-drawn, then stress relief annealing in the crystallization temperature.(6) align：Steel pipe linearity geometric accuracy is aligned using forcing press.The invention is quenched before cold-drawn by pull out for cutting technology, realizing chipless machining, meets the mechanical property requirements such as intensity.
Description
【Technical field】
The present invention relates to steel pipe processing technique field, more particularly to a kind of processing method of high-strength accurate steel pipe.
【Background technology】
The traditional processing method of high-strength accurate steel pipe was in the past：Roughing-quenched-semifinishing-finishing, processing week
Phase is long, particularly steel tube inner hole processing difficulties, and stock utilization is low, and typically less than 70%, it is difficult to meet batch production requirements.
【The content of the invention】
In view of this, to overcome the deficiencies in the prior art, the present invention provides a kind of processing method of high-strength accurate steel pipe,
Using hard-drawn technique, turning is replaced with cold-drawn, chipless machining is realized, it is quenched before cold-drawn, meet the mechanical property requirements such as intensity.
To achieve the above object, technical scheme is as follows：
A kind of processing method of high-strength accurate steel pipe, comprises the following steps：
(1) surface lubrication is handled：Using hydrochloric acid or aqueous sulfuric acid immersion steel pipe, removing oxide layer backlash wash clean is removed, then
It is put into conjunction groove and closes；The clean steel pipe of pickling, which is put into rinse well after phosphorating treatment in the phosphating solution prepared, phosphatization, is put into soap
Change pond saponification, drawing is transferred to after draining naturally.
(2) first time cold-drawn：Make steel pipe in the inside and outside die deformation set using hydraulic drawbench, reach the chi of precision
It is very little to require, strengthened after metal steel pipe cold deformation.
The purpose of this cold-drawn is to eliminate hot rolling wall thickness and surface quality defect by cold-drawn, while finished product second is determined
The deflection of secondary cold-drawn, makes mechanical performance etc. reach control.
(3) it is heat-treated：Steel pipe microstructural defects are eliminated by normalizing and the heat treatment method such as quenched after first time cold-drawn,
Intensity, elongation percentage, impact flexibility etc. are improved, makes steel pipe that there is good comprehensive mechanical performance.
(4) second of cold-drawn of finished product：Normalizing or it is quenched after be surface-treated after cold-drawn again, obtain required by precision
Steel pipe after cold deformation by being further strengthened while size, and surface defect further mitigates.
(5) stress relief annealing：After finished product cold-drawn, then stress relief annealing in the crystallization temperature, eliminate cold-drawn stress, it is to avoid after
Phase uses deformation.Preferable combination property is reached to adjusting performances such as intensity, toughness simultaneously.
(6) align：Stress relief annealing checks that mechanical performance is met after requirement, utilizes forcing press to align steel pipe linearity geometry
Precision, makes steel pipe sizes and geometric accuracy while reaching requirement.
So far the method being combined by heat treatment and cold-drawn reaches the high-accuracy requirement of high intensity.
The beneficial effects of the invention are as follows the invention is by pull out for cutting technology, shortening the process-cycle 70%
Above and processing cost more than 20%, while having the social benefits such as energy-saving and environmental protection.
The comprehensive mechanical performances such as intensity are improved using heat treatment, intensity and dimensional accuracy are further improved with reference to cold-drawn, profit
The characteristics of with cold-drawn chipless machining, replaces traditional machining, reaches the purpose of energy-conserving and environment-protective while improving processing efficiency.
【Embodiment】
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
A kind of processing method of high-strength accurate steel pipe, comprises the following steps：
(1) surface lubrication is handled：Using hydrochloric acid or aqueous sulfuric acid immersion steel pipe, removing oxide layer backlash wash clean is removed, then
It is put into conjunction groove and closes；The clean steel pipe of pickling, which is put into rinse well after phosphorating treatment in the phosphating solution prepared, phosphatization, is put into soap
Change pond saponification, drawing is transferred to after draining naturally.
(2) first time cold-drawn：Make steel pipe in the inside and outside die deformation set using hydraulic drawbench, reach the chi of precision
It is very little to require, strengthened after metal steel pipe cold deformation.
The purpose of this cold-drawn is to eliminate hot rolling wall thickness and surface quality defect by cold-drawn, while finished product second is determined
The deflection of secondary cold-drawn, makes mechanical performance etc. reach control.
(3) it is heat-treated：Steel pipe microstructural defects are eliminated by normalizing and the heat treatment method such as quenched after first time cold-drawn,
Intensity, elongation percentage, impact flexibility etc. are improved, makes steel pipe that there is good comprehensive mechanical performance.
(4) second of cold-drawn of finished product：Normalizing or it is quenched after be surface-treated after cold-drawn again, obtain required by precision
Steel pipe after cold deformation by being further strengthened while size, and surface defect further mitigates.
(5) stress relief annealing：After finished product cold-drawn, then stress relief annealing in the crystallization temperature, eliminate cold-drawn stress, it is to avoid after
Phase uses deformation.Preferable combination property is reached to adjusting performances such as intensity, toughness simultaneously.
(6) align：Stress relief annealing checks that mechanical performance is met after requirement, utilizes forcing press to align steel pipe linearity geometry
Precision, makes steel pipe sizes and geometric accuracy while reaching requirement.
So far the method being combined by heat treatment and cold-drawn reaches the high-accuracy requirement of high intensity
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (1)
1. a kind of processing method of high-strength accurate steel pipe, it is characterised in that comprise the following steps：
(1) surface lubrication is handled：Using hydrochloric acid or aqueous sulfuric acid immersion steel pipe, removing oxide layer backlash wash clean is removed, is placed into
Closed in middle conjunction groove；The clean steel pipe of pickling, which is put into rinse well after phosphorating treatment in the phosphating solution prepared, phosphatization, is put into saponification pond
Saponification, drawing is transferred to after draining naturally；
(2) first time cold-drawn：Make steel pipe in the inside and outside die deformation set using hydraulic drawbench, reach that the size of precision will
Ask, strengthened after metal steel pipe cold deformation；
(3) it is heat-treated：Steel pipe microstructural defects are eliminated by normalizing and the heat treatment method such as quenched after first time cold-drawn；
(4) second of cold-drawn of finished product：Normalizing or it is quenched after be surface-treated after cold-drawn again, obtain required by precise measure
While steel pipe by being further strengthened after cold deformation；
(5) stress relief annealing：After finished product cold-drawn, then stress relief annealing in the crystallization temperature, eliminate cold-drawn stress, it is to avoid the later stage makes
With deformation；
(6) align：Stress relief annealing checks that mechanical performance is met after requirement, utilizes forcing press to align steel pipe linearity geometry essence
Degree, makes steel pipe sizes and geometric accuracy while reaching requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373101.7A CN107096806A (en) | 2017-05-24 | 2017-05-24 | A kind of processing method of high-strength accurate steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373101.7A CN107096806A (en) | 2017-05-24 | 2017-05-24 | A kind of processing method of high-strength accurate steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107096806A true CN107096806A (en) | 2017-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710373101.7A Pending CN107096806A (en) | 2017-05-24 | 2017-05-24 | A kind of processing method of high-strength accurate steel pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN107096806A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848644A (en) * | 2018-12-27 | 2019-06-07 | 四川艾格瑞特模具科技股份有限公司 | A kind of high strength steel precision cone hole machine method |
| CN111842533A (en) * | 2020-07-17 | 2020-10-30 | 合肥工业大学 | Production method of high-strength high-toughness precision steel pipe |
| CN112090981A (en) * | 2020-09-02 | 2020-12-18 | 宜昌中南精密钢管有限公司 | S690Q material reinforced upgrading method |
| CN113059019A (en) * | 2021-03-25 | 2021-07-02 | 江苏建中新材料科技有限公司 | Acid-resistant heat exchanger steel pipe and preparation method thereof |
Citations (4)
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| CN103302133A (en) * | 2013-06-27 | 2013-09-18 | 宜昌中南精密钢管有限公司 | Precise cold-drawing method of high-precision high-strength 30CrMnSi seamless steel tube |
| CN203389982U (en) * | 2013-07-30 | 2014-01-15 | 无锡大金高精度冷拔钢管有限公司 | Special equipment for producing high-precision cold-drawn steel pipe |
| CN104338780A (en) * | 2013-07-31 | 2015-02-11 | 无锡大金高精度冷拔钢管有限公司 | Method for manufacturing high-strength cold-drawn steel tube |
| CN105880920A (en) * | 2014-08-30 | 2016-08-24 | 无锡市神陆液压机件有限公司 | Cold drawing precision honing tube manufacture method |
-
2017
- 2017-05-24 CN CN201710373101.7A patent/CN107096806A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302133A (en) * | 2013-06-27 | 2013-09-18 | 宜昌中南精密钢管有限公司 | Precise cold-drawing method of high-precision high-strength 30CrMnSi seamless steel tube |
| CN203389982U (en) * | 2013-07-30 | 2014-01-15 | 无锡大金高精度冷拔钢管有限公司 | Special equipment for producing high-precision cold-drawn steel pipe |
| CN104338780A (en) * | 2013-07-31 | 2015-02-11 | 无锡大金高精度冷拔钢管有限公司 | Method for manufacturing high-strength cold-drawn steel tube |
| CN105880920A (en) * | 2014-08-30 | 2016-08-24 | 无锡市神陆液压机件有限公司 | Cold drawing precision honing tube manufacture method |
Non-Patent Citations (1)
| Title |
|---|
| 张兆隆等: "《金属工艺学》", 31 August 2016 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848644A (en) * | 2018-12-27 | 2019-06-07 | 四川艾格瑞特模具科技股份有限公司 | A kind of high strength steel precision cone hole machine method |
| CN111842533A (en) * | 2020-07-17 | 2020-10-30 | 合肥工业大学 | Production method of high-strength high-toughness precision steel pipe |
| CN112090981A (en) * | 2020-09-02 | 2020-12-18 | 宜昌中南精密钢管有限公司 | S690Q material reinforced upgrading method |
| CN113059019A (en) * | 2021-03-25 | 2021-07-02 | 江苏建中新材料科技有限公司 | Acid-resistant heat exchanger steel pipe and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |