CN103350156A - Warm-pressing forming process of stainless steel sealing head - Google Patents
Warm-pressing forming process of stainless steel sealing head Download PDFInfo
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- CN103350156A CN103350156A CN2013102664619A CN201310266461A CN103350156A CN 103350156 A CN103350156 A CN 103350156A CN 2013102664619 A CN2013102664619 A CN 2013102664619A CN 201310266461 A CN201310266461 A CN 201310266461A CN 103350156 A CN103350156 A CN 103350156A
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- end socket
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- sealing head
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Abstract
The invention discloses a warm-pressing forming process of a stainless steel sealing head. The forming process comprises the steps as follows: a, a steel plate is selected according to the texture and size of a to-be-formed stainless steel sealing head, and is cut to form a sealing head plate; b, the sealing head plate is placed in a die for punch forming to form a large R part of the sealing head, the temperature of the punch forming ranges from 180 DEG C to 230 DEG C, then the sealing head obtained from the punch forming is subjected to spinning forming to form a small R part of the sealing head, and the temperature of the spinning forming ranges from 180 DEG C to 230 DEG C; c, the sealing head obtained after the punch forming and the spinning forming is subjected to groove cutting; d, the stainless steel surface of the sealing head is subjected to pickling and passivation treatment; and e, the sealing head required to be prepared is obtained after the manufactured sealing head passes the quality inspection. According to the invention, the warm-pressing forming process is adopted, and particularly, the small R part with concentrated sealing head stress is heated in a warm spinning pressing manner by a baking gun, so that residual stress in the sealing head is extremely eliminated, and the performance of the sealing head is improved.
Description
Technical field
The present invention relates to the seal head molding technical field, specifically a kind of warm compaction process that reduces the end socket internal residual stress, improves the stainless steel end socket of end socket performance.
Background technology
All cold forming processing all can produce certain residual stress and cold work reinforced, and end socket is no exception.As when meeting installation stress, welding residual stress, the thermal stress of container, will produce the stress stack, if use when the environment of stress corrosion is arranged, might produce stress corrosion cracking (SCC) at short notice.
Summary of the invention
The objective of the invention is the defective for the prior art existence, a kind of warm compaction process that reduces the end socket internal residual stress, improves the stainless steel end socket of end socket performance is provided.
The objective of the invention is to solve by the following technical programs:
A kind of warm compaction process of stainless steel end socket is characterized in that described moulding process carries out in the steps below:
A, selection cutting: according to material and the size Selection steel plate of the stainless steel end socket of want moulding and cut and obtain head plate;
B, moulding: head plate is put into mould carry out the large R part that punch forming obtains end socket, stamping forming temperature is 180-230 ℃, then the end socket that punch forming is obtained carries out the little R part that rotary press modelling obtains end socket, and the temperature of rotary press modelling is 180-230 ℃;
C, groove: the end socket that obtains behind punch forming and the rotary press modelling is cut groove;
D, pickling: the stainless steel surfaces to end socket carries out the acid wash passivation processing;
E, check: the end socket that makes tested namely gets the end socket of required preparation after qualified.
Rotary press modelling in the described step (b) adopts the baking rifle that the little R of end socket is partly heated and the mode of limit heating edge spinning is carried out.
When the end socket diameter in the described step (b) was definite value, the ratio of the wall thickness of end socket and the time of rotary press modelling was 1:08-1.5.
When the head plate in the described step (a) adopts welding to finish, then need to carry out Non-Destructive Testing at the rear butt welded seam of step (c).
Described Non-Destructive Testing refers to that butt welded seam carries out the 100%RT detection and makes it meet the JB/T4730.2-2005 standard.
Steel plate in the described step (a) adopts austenite stainless steel plate.
The present invention has the following advantages compared to existing technology:
The present invention partly adopts respectively warm punch forming and warm flow forming and molding process by large R part and the little R to end socket successively, the little R that particularly the end socket stress ratio is concentrated partly carries out warm spinning heating with the baking rifle, greatly eliminate the residual stress of end socket inside, improved the performance of end socket; Warm compaction molding has avoided hot-working to destroy materials behavior and cause affecting the problem of end socket performance and the problem that cold working stress is concentrated, and the integrated artistic clear process of temperature processing is simple.
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment.
A kind of warm compaction process of stainless steel end socket is characterized in that described moulding process carries out in the steps below:
A, selection cutting: according to material and the size Selection austenite stainless steel plate of the stainless steel end socket of want moulding and cut and obtain head plate, when the head plate size that obtains when cutting can't meet the requirements of size, obtain satisfactory head plate by welding;
B, moulding: head plate is put into mould carry out the large R part that punch forming obtains end socket, stamping forming temperature is 180-230 ℃, then the end socket that punch forming is obtained carries out the little R part that rotary press modelling obtains end socket, adopt the baking rifle that the little R of end socket is partly heated during rotary press modelling and the mode of limit heating edge spinning is carried out, the temperature of rotary press modelling is 180-230 ℃, and when the end socket diameter was definite value, the ratio of the wall thickness of end socket and the time of rotary press modelling was 1:08-1.5;
C, groove: the end socket that obtains behind punch forming and the rotary press modelling is cut groove, when above-mentioned head plate adopts welding to finish, need then that butt welded seam carry out Non-Destructive Testing behind the cutting groove, namely butt welded seam carries out 100%RT and detects and make it meet the JB/T4730.2-2005 standard;
D, pickling: the stainless steel surfaces to end socket carries out the acid wash passivation processing;
E, check: the end socket that makes tested namely gets the end socket of required preparation after qualified.
Embodiment
Preparing a diameter is that 2000mm, wall thickness are the stainless steel end socket of 10mm: at first select austenite stainless steel plate cutting to obtain head plate; Then head plate is put into mould carries out the large R part that punch forming obtains end socket, stamping forming temperature is 210 ℃, then the end socket that punch forming is obtained carries out the little R part that rotary press modelling obtains end socket, adopt the baking rifle that the little R of end socket is partly heated during rotary press modelling and the mode of limit heating edge spinning is carried out, the temperature of rotary press modelling is that 200 ℃ and rotary press modelling time are 12min; The end socket that obtains after the moulding is cut groove; Stainless steel surfaces to end socket after the groove cutting carries out the acid wash passivation processing; At last the end socket that makes is tested and namely get the end socket of required preparation after qualified.
The present invention partly adopts respectively warm punch forming and warm flow forming and molding process by large R part and the little R to end socket successively, the little R that particularly the end socket stress ratio is concentrated partly carries out warm spinning heating with the baking rifle, greatly eliminate the residual stress of end socket inside, improved the performance of end socket; Warm compaction molding has avoided hot-working to destroy materials behavior and cause affecting the problem of end socket performance and the problem that cold working stress is concentrated, and the integrated artistic clear process of temperature processing is simple.
Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of doing on the technical scheme basis all falls within the protection domain of the present invention; The technology that the present invention does not relate to all can be realized by prior art.
Claims (6)
1. the warm compaction process of a stainless steel end socket is characterized in that described moulding process carries out in the steps below:
A, selection cutting: according to material and the size Selection steel plate of the stainless steel end socket of want moulding and cut and obtain head plate;
B, moulding: head plate is put into mould carry out the large R part that punch forming obtains end socket, stamping forming temperature is 180-230 ℃, then the end socket that punch forming is obtained carries out the little R part that rotary press modelling obtains end socket, and the temperature of rotary press modelling is 180-230 ℃;
C, groove: the end socket that obtains behind punch forming and the rotary press modelling is cut groove;
D, pickling: the stainless steel surfaces to end socket carries out the acid wash passivation processing;
E, check: the end socket that makes tested namely gets the end socket of required preparation after qualified.
2. the warm compaction process of stainless steel end socket according to claim 1 is characterized in that rotary press modelling in the described step (b) adopts the baking rifle that the little R of end socket is partly heated and the mode of limit heating edge spinning is carried out.
3. the warm compaction process of stainless steel end socket according to claim 1, when it is characterized in that end socket diameter in the described step (b) is definite value, the ratio of the wall thickness of end socket and the time of rotary press modelling is 1:08-1.5.
4. the warm compaction process of stainless steel end socket according to claim 1 is characterized in that the head plate employing in the described step (a) is welded when finishing, and then needs carry out Non-Destructive Testing at the rear butt welded seam of step (c).
5. the warm compaction process of stainless steel end socket according to claim 4 is characterized in that described Non-Destructive Testing refers to that butt welded seam carries out the 100%RT detection and makes it meet the JB/T4730.2-2005 standard.
6. the warm compaction process of stainless steel end socket according to claim 1 is characterized in that the steel plate in the described step (a) adopts austenite stainless steel plate.
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| CN2013102664619A CN103350156A (en) | 2013-06-28 | 2013-06-28 | Warm-pressing forming process of stainless steel sealing head |
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| CN2013102664619A CN103350156A (en) | 2013-06-28 | 2013-06-28 | Warm-pressing forming process of stainless steel sealing head |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308030A (en) * | 2014-09-19 | 2015-01-28 | 常州旷达威德机械有限公司 | Process for processing anti-wave seal head of tank container |
| CN104439925A (en) * | 2014-10-28 | 2015-03-25 | 宜兴市联丰化工机械有限公司 | Ultrahigh-pressure large end socket contour machining method |
| CN104786011A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for nickel-copper end sockets |
| CN104786010A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for nickel composite board end sockets |
| CN104786013A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for nickel board end sockets |
| CN105094176A (en) * | 2015-07-20 | 2015-11-25 | 浙江大学 | Method for determining temperature of warm-stamping and heating austenitic stainless steel seal head |
| CN106002107A (en) * | 2016-06-26 | 2016-10-12 | 宜兴市联丰化工机械有限公司 | Pressing process for biphase alloy steel seal head |
| CN106734715A (en) * | 2017-01-16 | 2017-05-31 | 兰州兰石重型装备股份有限公司 | 904L+Q345R pressure container of composite board end socket thermoforming process |
| CN109128726A (en) * | 2018-11-12 | 2019-01-04 | 常州旷达威德机械有限公司 | A kind of processing method of potassium steel end socket |
| CN109513812A (en) * | 2018-09-25 | 2019-03-26 | 常州旷达威德机械有限公司 | A kind of processing method of large diameter thin wall arch austenitic stainless steel end socket |
| CN109531057A (en) * | 2018-11-12 | 2019-03-29 | 常州旷达威德机械有限公司 | A kind of processing method of 9Ni steel end socket |
| CN109664069A (en) * | 2017-10-16 | 2019-04-23 | 宜兴市联丰化工机械有限公司 | A kind of end enclosure molding process |
| CN110961516A (en) * | 2018-09-29 | 2020-04-07 | 佛山市顺德区美的电热电器制造有限公司 | Austenitic stainless steel kitchen ware and processing method thereof |
| CN114589264A (en) * | 2020-12-04 | 2022-06-07 | 瓯星机械设备有限公司 | Processing system and processing method of thin-wall austenitic stainless steel seal head |
| CN114985551A (en) * | 2022-05-31 | 2022-09-02 | 宜兴市联丰化工机械有限公司 | Warm-pressing forming process of stainless steel seal head |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786011A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for nickel-copper end sockets |
| CN104786010A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for nickel composite board end sockets |
| CN104786013A (en) * | 2014-01-21 | 2015-07-22 | 无锡市前洲西塘锻压有限公司 | Manufacturing method for nickel board end sockets |
| CN104308030A (en) * | 2014-09-19 | 2015-01-28 | 常州旷达威德机械有限公司 | Process for processing anti-wave seal head of tank container |
| CN104439925A (en) * | 2014-10-28 | 2015-03-25 | 宜兴市联丰化工机械有限公司 | Ultrahigh-pressure large end socket contour machining method |
| CN105094176A (en) * | 2015-07-20 | 2015-11-25 | 浙江大学 | Method for determining temperature of warm-stamping and heating austenitic stainless steel seal head |
| CN105094176B (en) * | 2015-07-20 | 2017-03-15 | 浙江大学 | A kind of method for determining austenitic stainless steel end socket temperature punching press heating-up temperature |
| CN106002107A (en) * | 2016-06-26 | 2016-10-12 | 宜兴市联丰化工机械有限公司 | Pressing process for biphase alloy steel seal head |
| CN106734715A (en) * | 2017-01-16 | 2017-05-31 | 兰州兰石重型装备股份有限公司 | 904L+Q345R pressure container of composite board end socket thermoforming process |
| CN109664069A (en) * | 2017-10-16 | 2019-04-23 | 宜兴市联丰化工机械有限公司 | A kind of end enclosure molding process |
| CN109513812A (en) * | 2018-09-25 | 2019-03-26 | 常州旷达威德机械有限公司 | A kind of processing method of large diameter thin wall arch austenitic stainless steel end socket |
| CN110961516A (en) * | 2018-09-29 | 2020-04-07 | 佛山市顺德区美的电热电器制造有限公司 | Austenitic stainless steel kitchen ware and processing method thereof |
| CN109128726A (en) * | 2018-11-12 | 2019-01-04 | 常州旷达威德机械有限公司 | A kind of processing method of potassium steel end socket |
| CN109531057A (en) * | 2018-11-12 | 2019-03-29 | 常州旷达威德机械有限公司 | A kind of processing method of 9Ni steel end socket |
| CN109531057B (en) * | 2018-11-12 | 2020-07-31 | 常州旷达威德机械有限公司 | Machining method of 9Ni steel end socket |
| CN114589264A (en) * | 2020-12-04 | 2022-06-07 | 瓯星机械设备有限公司 | Processing system and processing method of thin-wall austenitic stainless steel seal head |
| CN114589264B (en) * | 2020-12-04 | 2024-04-16 | 瓯星机械设备有限公司 | Machining system and machining method of thin-wall austenitic stainless steel seal head |
| CN114985551A (en) * | 2022-05-31 | 2022-09-02 | 宜兴市联丰化工机械有限公司 | Warm-pressing forming process of stainless steel seal head |
| CN114985551B (en) * | 2022-05-31 | 2023-10-31 | 宜兴市联丰化工机械有限公司 | Warm-pressing forming process of stainless steel seal head |
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Application publication date: 20131016 |