CN102688976A - Forging method of Grade R5 mooring chain accessory swivel shackle - Google Patents
Forging method of Grade R5 mooring chain accessory swivel shackle Download PDFInfo
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- CN102688976A CN102688976A CN2011100679038A CN201110067903A CN102688976A CN 102688976 A CN102688976 A CN 102688976A CN 2011100679038 A CN2011100679038 A CN 2011100679038A CN 201110067903 A CN201110067903 A CN 201110067903A CN 102688976 A CN102688976 A CN 102688976A
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Abstract
Disclosed is a forging method of a Grade R5 mooring chain accessory swivel shackle, comprising the steps of: blanking raw materials according to design requirements of drawings; carrying out nondestructive testing on the materials with a flaw detector; heating the materials in a box-type reverberatory furnace; controlling the forging temperature between 900 and 1100 DEG C; using a 3-ton belt drop hammer to beat a forge piece into a cuboid and its both ends into a step, putting a molding die into the forge piece, and forging into a shape; placing the forge piece into a tempering furnace and tempering at a controlled temperature of 620-650 DEG C; and carrying out nondestructive testing on the forge piece with the flaw detector. The forging method provided by the invention appropriately raises initial forging temperature and final forging temperature of the Grade R5 mooring chain accessory swivel shackle, appropriately raises forging temperature as surface crack will emerge when Grade R5 swivel shackle is being forged, and increases working allowance of forging machines. Furthermore, relevant requirements of classification societies for surface and internal structures of the Grade R5 mooring chain accessory are reached, and product quality is ensured.
Description
Technical field:
The present invention relates to a kind of forging method of R5 level mooring cable annex swivel shackle.
Technical background:
Be used for the same technical characterictic of R5 level mooring cable annex swivel shackle on the deep sea drilling platform with high strength, obdurability, corrosion-resistant, antifatigue with the R5 mooring cable.According to forging requirement, its surface and internal structure all should satisfy the related request of classification societies such as ABS, DNV.Consider its importance, therefore must adopt specific forging method, make the swivel shackle of producing have good comprehensive performances ocean operation safety.
Designing requirement according to classification society and deep sea drilling platform; R5 level mooring cable annex should have long service life, and in use over a long time, the mooring cable swivel shackle is owing to bear tensile load for a long time; And long-term seawater corrosion; Can cause its latch loosening and come off, swivel shackle was lost efficacy, cause serious consequence.Because R5 level mooring cable intensity is high, hardness is high, and the relative chain of swivel shackle is bigger with other annex volumes, and it is bigger therefore to forge difficulty, difficult forming.So how to improve the corrosion resistance of swivel shackle and the ability of resistance to deformation, it is big to overcome the forging difficulty, and the problem of difficult forming is a mooring cable annex manufacturing industry problem demanding prompt solution.
Summary of the invention:
The object of the invention is exactly the forging method that a kind of R5 level mooring cable annex swivel shackle will be provided, and it can satisfy the related request that classification society forges R5 level mooring cable annex swivel shackle.The objective of the invention is to realize like this, a kind of forging method of R5 level mooring cable annex swivel shackle is characterized in that: blanking requires diameter, the length of defined to carry out Non-Destructive Testing according to design drawing; In box reverberatory furnace, heat, overheated, burning surface quality defect can not be arranged; Forging temperature is controlled at 900-1100 ℃; With 3 tons of belt drop hammers, forging is broken into cuboid, the forging defectives such as interlayer, cracking that when pier is thick, do not have; With 3 tons of belt drop hammers, cuboid forging two ends are forged into step, the other defect of the interlayer that do not have during forging, cracking, groove and reduction properties of product; In forging, put into mould, with 3 tons of belt drop hammers, forging molding, the other defect of the interlayer that do not have during forging, cracking, groove and reduction properties of product; Tempering is placed on forging in the tempering furnace, and temperature is controlled at 620-650 ℃; With defectoscope forging is carried out Non-Destructive Testing.The present invention has suitably improved the initial forging temperature and the final forging temperature of R5 level mooring cable annex swivel shackle; Can produce face crack when forging owing to R5 level swivel shackle in addition; So also suitably improved forging temperature simultaneously; Increased the forging machining allowance, reached the related request of classification society, guaranteed product quality R5 level mooring cable attachment surface and internal structure.
Description of drawings:
Fig. 1 is a blanking operation sketch map of the present invention;
Fig. 2 is that the present invention forges into cuboid operation sketch map;
Fig. 3 is that two ends of the present invention forge into step operation sketch map;
Fig. 4 is a molding procedure sketch map of the present invention;
Fig. 5 is a product structure sketch map of the present invention;
6. belt drop hammer, 7. mould.
The specific embodiment:
A kind of forging method of R5 level mooring cable annex swivel shackle is characterized in that: blanking, and diameter, length dimension according to design drawing requirement defined carry out blanking to raw material, and the blanking length tolerance is ± 1mm; With defectoscope material is carried out Non-Destructive Testing; In box reverberatory furnace, heat, overheated, burning surface quality defect can not be arranged; Forging temperature is controlled at 900-1100 ℃; With 3 tons of belt drop hammers, forging is broken into cuboid, the forging defectives such as interlayer, cracking that when pier is thick, do not have; With 3 tons of belt drop hammers, cuboid forging two ends are forged into step, the other defect of the interlayer that do not have during forging, cracking, groove and reduction properties of product; In forging, put into mould, with 3 tons of belt drop hammers, forging molding, the other defect of the interlayer that do not have during forging, cracking, groove and reduction properties of product; Tempering is placed on forging in the tempering furnace, and temperature is controlled at 620-650 ℃; With defectoscope forging is carried out Non-Destructive Testing.
Claims (1)
1. the forging method of a R5 level mooring cable annex swivel shackle is characterized in that: blanking, require diameter, the length dimension of defined according to design drawing, and raw material are carried out blanking, the blanking length tolerance is ± 1mm; With defectoscope material is carried out Non-Destructive Testing; In box reverberatory furnace, heat, overheated, burning surface quality defect can not be arranged; Forging temperature is controlled at 900-1100 ℃; With 3 tons of belt drop hammers, forging is broken into cuboid, the forging defectives such as interlayer, cracking that when pier is thick, do not have; With 3 tons of belt drop hammers, cuboid forging two ends are forged into step, the other defect of the interlayer that do not have during forging, cracking, groove and reduction properties of product; In forging, put into mould, with 3 tons of belt drop hammers, forging molding, the other defect of the interlayer that do not have during forging, cracking, groove and reduction properties of product; Tempering is placed on forging in the tempering furnace, and temperature is controlled at 620-650 ℃; With defectoscope forging is carried out Non-Destructive Testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110067903.8A CN102688976B (en) | 2011-03-21 | A kind of forging method of R5 level mooring cable accessory swivel shackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110067903.8A CN102688976B (en) | 2011-03-21 | A kind of forging method of R5 level mooring cable accessory swivel shackle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102688976A true CN102688976A (en) | 2012-09-26 |
| CN102688976B CN102688976B (en) | 2016-12-14 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358094A (en) * | 2013-06-28 | 2013-10-23 | 江苏亚星锚链股份有限公司 | Forging method for C-shaped pyriform shackle |
| CN103358095A (en) * | 2013-06-28 | 2013-10-23 | 江苏亚星锚链股份有限公司 | Forging method for C-shaped shackle |
| CN103567720A (en) * | 2013-10-10 | 2014-02-12 | 江苏亚星锚链股份有限公司 | Forging method for Kent shackle |
| CN103567721A (en) * | 2013-10-10 | 2014-02-12 | 江苏亚星锚链股份有限公司 | Forging method for connection shackle |
| CN103567718A (en) * | 2013-10-10 | 2014-02-12 | 江苏亚星锚链股份有限公司 | Swivel shackle forging method |
| CN104014704A (en) * | 2014-05-30 | 2014-09-03 | 江苏亚星锚链股份有限公司 | Forging method for H-shaped shackle with lifting lugs |
| CN104060079A (en) * | 2014-06-30 | 2014-09-24 | 成都高普石油工程技术有限公司 | Sprayer processing technique capable of lowering processing difficulty |
| CN105880950A (en) * | 2016-05-30 | 2016-08-24 | 江苏亚星锚链股份有限公司 | Manufacturing method for double-nut D type connecting shackle |
| CN107813904A (en) * | 2017-10-14 | 2018-03-20 | 江苏亚星锚链股份有限公司 | One kind stops chain shackle |
| CN111037213A (en) * | 2019-11-27 | 2020-04-21 | 江苏亚星锚链股份有限公司 | Forging method for double-nut D-shaped connecting shackle of R6-level mooring chain accessory |
Citations (5)
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| CN2385967Y (en) * | 1999-06-15 | 2000-07-05 | 正茂集团靖江环球锚链厂 | Forged C-type connecting dismounting fastening |
| US6685396B1 (en) * | 2000-11-16 | 2004-02-03 | Billy J. Bergeron | Method and apparatus for suction anchor and mooring deployment and connection |
| CN101264564A (en) * | 2008-05-08 | 2008-09-17 | 谢鸿刚 | Manufacturing method for quick-release type hoisting connection ring body |
| CN101519751A (en) * | 2008-02-27 | 2009-09-02 | 宝山钢铁股份有限公司 | High-performance marine mooring chain steel and manufacturing method thereof |
| CN101781698A (en) * | 2009-10-27 | 2010-07-21 | 中国海洋石油总公司 | Thermal treatment process of R5 mooring chain |
Patent Citations (5)
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| CN2385967Y (en) * | 1999-06-15 | 2000-07-05 | 正茂集团靖江环球锚链厂 | Forged C-type connecting dismounting fastening |
| US6685396B1 (en) * | 2000-11-16 | 2004-02-03 | Billy J. Bergeron | Method and apparatus for suction anchor and mooring deployment and connection |
| CN101519751A (en) * | 2008-02-27 | 2009-09-02 | 宝山钢铁股份有限公司 | High-performance marine mooring chain steel and manufacturing method thereof |
| CN101264564A (en) * | 2008-05-08 | 2008-09-17 | 谢鸿刚 | Manufacturing method for quick-release type hoisting connection ring body |
| CN101781698A (en) * | 2009-10-27 | 2010-07-21 | 中国海洋石油总公司 | Thermal treatment process of R5 mooring chain |
Non-Patent Citations (1)
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| 郎宏军等: "《中华人名共和国国家标准-GB/T 20848-2007系泊链》", 5 March 2007, article ""GB/T 20848-2007系泊链"" * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358094A (en) * | 2013-06-28 | 2013-10-23 | 江苏亚星锚链股份有限公司 | Forging method for C-shaped pyriform shackle |
| CN103358095A (en) * | 2013-06-28 | 2013-10-23 | 江苏亚星锚链股份有限公司 | Forging method for C-shaped shackle |
| CN103567720A (en) * | 2013-10-10 | 2014-02-12 | 江苏亚星锚链股份有限公司 | Forging method for Kent shackle |
| CN103567721A (en) * | 2013-10-10 | 2014-02-12 | 江苏亚星锚链股份有限公司 | Forging method for connection shackle |
| CN103567718A (en) * | 2013-10-10 | 2014-02-12 | 江苏亚星锚链股份有限公司 | Swivel shackle forging method |
| CN104014704A (en) * | 2014-05-30 | 2014-09-03 | 江苏亚星锚链股份有限公司 | Forging method for H-shaped shackle with lifting lugs |
| CN104060079A (en) * | 2014-06-30 | 2014-09-24 | 成都高普石油工程技术有限公司 | Sprayer processing technique capable of lowering processing difficulty |
| CN105880950A (en) * | 2016-05-30 | 2016-08-24 | 江苏亚星锚链股份有限公司 | Manufacturing method for double-nut D type connecting shackle |
| CN107813904A (en) * | 2017-10-14 | 2018-03-20 | 江苏亚星锚链股份有限公司 | One kind stops chain shackle |
| CN111037213A (en) * | 2019-11-27 | 2020-04-21 | 江苏亚星锚链股份有限公司 | Forging method for double-nut D-shaped connecting shackle of R6-level mooring chain accessory |
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