CN103114195B - Connected metal link heat treatment process method - Google Patents
Connected metal link heat treatment process method Download PDFInfo
- Publication number
- CN103114195B CN103114195B CN201310063663.3A CN201310063663A CN103114195B CN 103114195 B CN103114195 B CN 103114195B CN 201310063663 A CN201310063663 A CN 201310063663A CN 103114195 B CN103114195 B CN 103114195B
- Authority
- CN
- China
- Prior art keywords
- refuting
- heat
- cooling tube
- chain
- insulation layer
- Prior art date
- 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.)
- Active
Links
Landscapes
- Heat Treatment Of Articles (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses a connected metal link heat treatment process method. The method comprises the following steps of: wrapping up an insulation layer on the outer surface of the connected link, and heating an inner metal through an outer induction coil so that the heat in the connected link is difficult to escape; and meanwhile, winding cooling pipes on other links close to the connected link, and rapidly taking away the heat generated in the connected link by the cooling pipe so that the other links are not affected. Through an experimental proof, the nearby links, particularly the connected links have the temperature lower than 150 DEG C in the heat treatment process, so that the requirement of classification society rule to chains processing is completely met.
Description
Technical field
The present invention relates to the treatment process of monocycle on anchor chain used on offshore structure or mooring chain, be specifically related to a kind of anchor chain or mooring chain and refute the heat-treatment technology method that connects metal chain link.
Background technology
Anchor chain or mooring chain are that the offshore structures such as boats and ships, oil drilling platform are fixed on to deepwater chain, due to oceanic climate and typhoon influence, its Working environment is very severe, so this chain is had higher requirements, need to there is the technical characterictics such as high strength, anti-low temperature brittleness, corrosion-resistant, antifatigue, and through final nondestructive testing, its inside and outside quality need to meet the requirement of the classification societies.
The production process of conventional anchor chain or mooring chain is: blanking, preheat, compile ring, flash welding, pressure shelves, preliminary examination, thermal treatment, tensile test, mechanical test, magnetic and UT (Ultrasonic Testing), beat steel seal, japanning, the final finished product of packing.In a series of test in centre and flaw detection process, if find that the mass defect of certain chain link surpasses the scope allowing, this chain link must be cut and be adopted new chain link to refute to connect, and new chain link need to be consistent with other chain links through its performance of Overheating Treatment guarantee.The thermal treatment Heating temperature of new chain link has reached more than 900 degree Celsius, and guarantee chain link homogeneous heating, the temperature difference at any position of chain link is no more than 40 ℃, but can not affect its contiguous links in the new chain link of thermal treatment, any position temperature of contiguous links can not be over 250 degrees Celsius, otherwise can destroy the performance of contiguous links, can not meet the requirement of classification society rule to chain link processing.
Summary of the invention
Problem to be solved by this invention is, for the requirement of above-mentioned technology, design a kind of thermal effectiveness good, near chain link is connect to metal chain link heat-treatment technology method without refuting of impact.
The present invention is that the technical scheme that its problem of solution adopts is:
Refute and connect a metal chain link heat-treatment technology method, it is characterized in that comprising the following steps:
A, be wound around cooling tube refuting on other chain links that chain ring is adjacent;
The thermal insulation layer of B,, insulation heat insulation at the outside surface parcel one deck of refuting chain ring;
C, at the outside surface of thermal insulation layer, be wound with ruhmkorff coil, described ruhmkorff coil is connected with outside induction heater;
D, driving induction heater are heat-treated refuting chain ring heating, and its quenching temperature is 900 ℃ ± 20 ℃, and the temperature of tempering is 620 ℃ ± 20 ℃; At the periphery of refuting chain ring, a plurality of temperature inductors are set, when the super scope of temperature being detected, by increasing or reduce the mode of induction heater power, regulate thermal treatment temp;
E, cooling rear dismounting cooling tube, ruhmkorff coil and thermal insulation layer.
In the present invention, in described A step, cooling tube is hollow form, and cooling tube internal flow has cooling fluid.
In the present invention, in described A step, cooling tube is provided with many groups.
In the present invention, in described A step, the cold density of pipe winding of going is along with the direction away from refuting chain ring reduces gradually.
In the present invention, in described B step, thermal insulation layer is rock wool.
In the present invention, in described C step, described ruhmkorff coil is copper pipe, and copper pipe internal flow has cooling fluid.
The invention has the beneficial effects as follows: the present invention is refuting the outside surface parcel thermal insulation layer of chain ring, and by outside ruhmkorff coil, interior metal is heated, the heat that makes to refute in chain ring is difficult to overflow, to refuting on other chain links that chain ring is adjacent, be wound around cooling tube simultaneously, refute the heat shedding in the chain ring pipe racks that is cooled rapidly and walk, make it cannot affect other chain links; The experiment proved that, the present invention in heat treatment process, the chain link that near chain link is particularly connected mutually, its temperature, lower than 150 ℃, meets the requirement of classification society rule to chain processing completely.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of the present embodiment;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of thermal effectiveness provided by the present invention is good, near chain link is connect to metal chain link heat-treatment technology method without refuting of impact, comprises the following steps:
A, be wound around cooling tube 3 refuting on other chain links 2 that chain ring 1 is adjacent, according to the difference of temperature, the density that cooling tube 3 is wound around is not identical yet, and the cold density of managing 3 windings of going is along with the direction away from refuting chain ring 1 reduces gradually.For guaranteeing the speed of its heat radiation, cooling tube 3 is hollow form, and cooling tube 3 internal flows have cooling fluid, by this cooling fluid, can rapidly the heat on other chain links 2 be left, and makes it unaffected.As preferred embodiment, in order to accelerate radiating rate, cooling tube 3 can be provided with many groups, and every group of cooling tube 3 is connected with coolant pump separately, guarantees its quick heat radiating.
The thermal insulation layer 4 of B,, insulation heat insulation at the outside surface parcel one deck of refuting chain ring 1, thermal insulation layer 4 optimums are rock wool, this thermal insulation layer 4 has not only cut off ruhmkorff coil 5 and has refuted chain ring 1, also can make its inner heat can not come out easily, both guarantee inner heat treated temperature, and avoided again it near space, to cause larger impact.
C, at the outside surface of thermal insulation layer 4, be wound with ruhmkorff coil 5, described ruhmkorff coil 5 is connected with outside induction heater, and ruhmkorff coil 5 is also enclosed with insulation layer; During for fear of thermal treatment, affect ruhmkorff coil 5, this ruhmkorff coil 5 is copper pipe, and copper pipe internal flow has cooling fluid, by cooling fluid, the heat of ruhmkorff coil 5 annexes can be taken away rapidly.
D, driving induction heater are heat-treated refuting chain ring 1 heating, and its quenching temperature is 900 ℃ ± 20 ℃, and the temperature of tempering is 620 ℃ ± 20 ℃; At the periphery of refuting chain ring 1, a plurality of temperature inductors are set, when detecting while refuting the super scope of chain ring 1 any part temperature, by increasing or reduce the mode of induction heater power, regulate thermal treatment temp, in the present embodiment, described temperature inductor is contactless radiation formula thermometric inductor block, by non-contacting inductor block, the hardware impact on temperature inductor while having reduced thermal treatment.
E, cooling rear dismounting cooling tube 3, ruhmkorff coil 5 and thermal insulation layer 4, thus the heat treatment process of whole single-stranded loop completed.
Certainly, the present invention is except above-mentioned embodiment, and other equivalent technical solutions also should be within its protection domain.
Claims (5)
1. refute and connect a metal chain link heat-treatment technology method, it is characterized in that comprising the following steps:
A, refuting the upper cooling tube (3) that is wound around of other chain links (2) that chain ring (1) is adjacent;
The thermal insulation layer (4) of B,, insulation heat insulation at the outside surface parcel one deck of refuting chain ring (1);
C, at the outside surface of thermal insulation layer (4), be wound with ruhmkorff coil (5), described ruhmkorff coil (5) is connected with outside induction heater;
D, driving induction heater are heat-treated refuting chain ring (1) heating, and its quenching temperature is 900 ℃ ± 20 ℃, and the temperature of tempering is 620 ℃ ± 20 ℃; At the periphery of refuting chain ring (1), a plurality of temperature inductors are set, when the super scope of temperature being detected, by increasing or reduce the mode of induction heater power, regulate thermal treatment temp;
E, cooling rear dismounting cooling tube (3), ruhmkorff coil (5) and thermal insulation layer (4);
In described A step, the density that cooling tube (3) is wound around is along with the direction away from refuting chain ring (1) reduces gradually.
2. a kind of refuting according to claim 1 connects metal chain link heat-treatment technology method, it is characterized in that: in described A step, cooling tube (3) is hollow form, and cooling tube (3) internal flow has cooling fluid.
3. a kind of refuting according to claim 1 connects metal chain link heat-treatment technology method, it is characterized in that: in described A step, cooling tube (3) is provided with many groups.
4. a kind of refuting according to claim 1 connects metal chain link heat-treatment technology method, it is characterized in that: in described B step, thermal insulation layer (4) is rock wool.
5. a kind of refuting according to claim 1 connects metal chain link heat-treatment technology method, it is characterized in that: in described C step, described ruhmkorff coil (5) is copper pipe, and copper pipe internal flow has cooling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063663.3A CN103114195B (en) | 2013-02-28 | 2013-02-28 | Connected metal link heat treatment process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310063663.3A CN103114195B (en) | 2013-02-28 | 2013-02-28 | Connected metal link heat treatment process method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103114195A CN103114195A (en) | 2013-05-22 |
| CN103114195B true CN103114195B (en) | 2014-11-19 |
Family
ID=48412612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310063663.3A Active CN103114195B (en) | 2013-02-28 | 2013-02-28 | Connected metal link heat treatment process method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103114195B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369017A (en) * | 2015-11-26 | 2016-03-02 | 宁夏天地奔牛实业集团有限公司 | Sealed box brine quenching thermal treatment method for mining link chains |
| CN106222366A (en) * | 2016-08-26 | 2016-12-14 | 常熟中德重机有限公司 | A kind of process of surface treatment of high rigidity hoist roller |
| CN108193041B (en) * | 2018-03-23 | 2024-03-12 | 安吉长虹制链有限公司 | Round-link chain heat treatment device and method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353716A (en) * | 2007-07-24 | 2009-01-28 | 中煤张家口煤矿机械有限责任公司 | Novel mining single ring tempering method |
| CN102586552A (en) * | 2012-03-13 | 2012-07-18 | 浙江吉利汽车研究院有限公司 | Heat treatment method for compression joint type workpiece |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6196034A (en) * | 1984-10-16 | 1986-05-14 | Nippon Chain Anker Kk | Heat treatment of certain ring of chain |
-
2013
- 2013-02-28 CN CN201310063663.3A patent/CN103114195B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353716A (en) * | 2007-07-24 | 2009-01-28 | 中煤张家口煤矿机械有限责任公司 | Novel mining single ring tempering method |
| CN102586552A (en) * | 2012-03-13 | 2012-07-18 | 浙江吉利汽车研究院有限公司 | Heat treatment method for compression joint type workpiece |
Non-Patent Citations (3)
| Title |
|---|
| "热处理工艺对系泊链焊接接头组织与性能的影响";王冀恒等;《金属热处理》;20110630;第36卷(第6期);第123-125页 * |
| JP昭61-96034A 1986.05.14 * |
| 王冀恒等."热处理工艺对系泊链焊接接头组织与性能的影响".《金属热处理》.2011,第36卷(第6期),第123-125页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103114195A (en) | 2013-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103114195B (en) | Connected metal link heat treatment process method | |
| US4229235A (en) | Heat-treating method for pipes | |
| CN106319191B (en) | TP347 material pipeline postwelding stabilizing heat treatment methods | |
| JP2007063642A (en) | Method for improving remaining stress and coil for high-frequency induction heating | |
| JP2004211187A (en) | Method and apparatus for heat treatment of piping system | |
| CN104148840A (en) | Pipe connecting base butt joint local post weld heat treatment method | |
| CN102899593B (en) | Annealing method for aluminum used for cable and aluminum alloy belt and foil | |
| MX2013012587A (en) | Heat recovery from a tunnel recooling process. | |
| CN105992901A (en) | Method for extending life of high-temperature piping and life-extending structure for high-temperature piping | |
| CN103484609B (en) | A kind of 45# steel quenching method | |
| CN101768660A (en) | Single ring heat treatment method and equipment thereof of R5 mooring anchor chain | |
| CN102719626B (en) | Steel pipe and on-line quenching method thereof | |
| CN104004897A (en) | Method for refining D406A steel welded unit crystalline grains through space temperature gradient thermal treatment | |
| CN205877444U (en) | Multi -functional non - metal composite pipe | |
| JP2015014022A (en) | Corrosion resistance imparting method of cylindrical body made of stainless steel | |
| CN206056258U (en) | A kind of electromagnet calciner | |
| CN104404220A (en) | 60Si2Mn steel spring heat treatment method | |
| RU2723290C1 (en) | Heat-insulated multi-wall pipe for superconducting energy transmission system | |
| CN203382792U (en) | Residual heat recycling device of box type isothermal quenching furnace | |
| CN204898004U (en) | Soaking shaped steel pipe induction heater | |
| CN104259632A (en) | Tail fin welding process of 10000-ton level bulk cargo ship | |
| CN205514018U (en) | A outer pot for being directed at cooking pot's interior pot heats | |
| CN105648194A (en) | Heat treatment technique for repair of alloy pipeline | |
| CN104505190A (en) | Fast automatic crosslink production line and production process | |
| KR20070021884A (en) | Protective pipes for gas pipes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |