CN104801932A - Production method of high-heat strong titanium pipe - Google Patents
Production method of high-heat strong titanium pipe Download PDFInfo
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- CN104801932A CN104801932A CN201510189529.7A CN201510189529A CN104801932A CN 104801932 A CN104801932 A CN 104801932A CN 201510189529 A CN201510189529 A CN 201510189529A CN 104801932 A CN104801932 A CN 104801932A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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Abstract
The invention discloses a production method of a high-heat strong titanium pipe. The production method comprises the following steps of (1) material selection: alloy titanium is selected as raw materials, and the materials comprise the following chemical ingredients in percentage by mass: 0.1 percent to 0.2 percent of manganese, 0.75 percent to 0.9 percent of nickel, 0.05 percent to 0.07 percent of carbon, 0.3 percent to 0.35 percent of iron, 0.95 to 1.25 percent of vanadium, at most 0.5 percent of other unavoidable impurities (the content of single impurities does not exceed 0.15 percent) and the balance titanium; (2) blank manufacturing; (3) surface treatment; (4) heat treatment process. Through adopting the method, the titanium pipe can bear high temperature of 850 DEG C without deformation, the heat intensity of the titanium pipe is improved, the titanium pipe and other pipe materials can be welded into a whole at the temperature of 200 DEG C, and the welding performance of the titanium pipe is improved.
Description
Technical field
The present invention relates to a kind of production and processing field, particularly a kind of production method of high heat-intensity titanium pipe.
Background technology
Present stage, titanium pipe quality is light, intensity is high, mechanical performance is superior, it is widely used in heat-exchange apparatus, as tubular heat exchanger, coil exchanger, coiled heat exchanger, condenser, evaporimeter and conveyance conduit etc., a lot of Nuclear Power Industry is managed titanium pipe as its unit standard, and titanium pipe is often attended by all the other tubes of material jointly uses, therefore for the thermostrength of titanium pipe and the requirement of welding performance also very high, and so-called heat resistance refers to the ability of resisting plastic deformation and destruction under high temperature and load acting in conjunction, weldability refers to that metal material comprises welding method in the certain welding procedure of employing, welding material, under the conditions such as welding conditions and Welding Structure form, obtain the complexity of excellent welding point, and solve the high heat-intensity of titanium pipe at present and high weldability is also a more difficult problem.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of production method of high heat-intensity titanium pipe, can obtain the titanium pipe having higher thermal epistasis, thus titanium pipe can be more firmly welded as a whole with other tubing, improves the welding performance of tubing.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the production method providing a kind of high heat-intensity titanium pipe, comprises the steps:
(1), select materials: select titanium alloy to be raw material, its chemical composition mass percent is:
Manganese: 0.1%-0.2%; Nickel: 0.75%-0.9%; Carbon: 0.05%-0.07%; Iron: 0.3%-0.35%; Vanadium: 0.95-1.25%; The single content of other inevitable impurity is no more than 0.15%, and total content is no more than 0.5%; All the other are titanium;
(2), stock manufacture: adopt melting, forging, lathe process method, above-mentioned titanium alloy raw material is made tubular blank;
(3), surface treatment: adopt grinding machine to roughly grind described stock, roughly ground rear employing clear water and surface finish sand grains is removed, and then adopted grinding machine to refine described stock, put into strong acid dipping 10-15 minute after having refined;
(4), heat treatment: the stock after dipping is put into electric furnace and heat-treats, first with 350-400 DEG C of heated at constant temperature after 30 minutes in described electric furnace, with the speed of rising 50-60 per hour DEG C, high-temperature process is carried out to stock, until temperature stops heating after reaching 700 DEG C, take out after making stock be cooled to 100 DEG C with stove, be put in after naturally cooling in air and obtain high heat-intensity titanium pipe.
In a preferred embodiment of the present invention, described grinding machine corase grind adopts water mill emery wheel to carry out polishing processing, and water mill emery wheel cost is lower and surface roughness is lower, adopts water mill emery wheel to carry out corase grind and can ensure what stock surface impurity was removed.
In a preferred embodiment of the present invention, described grinding machine fine grinding adopts skive to carry out polishing processing, and the precision of skive is higher, adopts skive to carry out refining the fineness that can ensure stock surface.
In a preferred embodiment of the present invention, described strong acid to be concentration be 80% nitric acid, have higher oxidisability, remove the hydrogen in stock and oxygen, improve the purity of titanium further.
The invention has the beneficial effects as follows: it is indeformable that the production method of a kind of high-heat strength of the present invention titanium pipe makes titanium pipe can bear under the high temperature of 850 DEG C, improve the heat resistance of titanium pipe, titanium pipe and other tubing can be made only can need to be welded as a whole at the temperature of 200 DEG C simultaneously, improve the weldability of titanium pipe.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Embodiment 1:
A production method for high heat-intensity titanium pipe, comprises the steps:
(1), select materials: select titanium alloy to be raw material, its chemical composition mass percent is:
Manganese: 0.1%; Nickel: 0.75%; Carbon: 0.05%%; Iron: 0.35%; Vanadium: 1.25%; The single content of other inevitable impurity is no more than 0.15%, and total content is no more than 0.5%; All the other are titanium;
(2), stock manufacture: adopt melting, forging, lathe process method, above-mentioned titanium alloy raw material is made tubular blank;
(3), surface treatment: adopt grinding machine to roughly grind described stock, roughly ground rear employing clear water and surface finish sand grains is removed, and then adopted grinding machine to refine described stock, put into strong acid dipping after having refined 10 minutes;
(4), heat treatment: the stock after dipping is put into electric furnace and heat-treats, first with 350 DEG C of heated at constant temperature after 30 minutes in described electric furnace, with the speed of rising per hour 50 DEG C, high-temperature process is carried out to stock, until temperature stops heating after reaching 700 DEG C, take out after making stock be cooled to 100 DEG C with stove, be put in after naturally cooling in air and obtain high heat-intensity titanium pipe.
Embodiment 2:
A production method for high heat-intensity titanium pipe, comprises the steps:
(1), select materials: select titanium alloy to be raw material, its chemical composition mass percent is:
Manganese: 00.2%; Nickel: 0.9%; Carbon: 0.07%; Iron: 0.3%%; Vanadium: 0.95%; The single content of other inevitable impurity is no more than 0.15%, and total content is no more than 0.5%; All the other are titanium;
(2), stock manufacture: adopt melting, forging, lathe process method, above-mentioned titanium alloy raw material is made tubular blank;
(3), surface treatment: adopt grinding machine to roughly grind described stock, roughly ground rear employing clear water and surface finish sand grains is removed, and then adopted grinding machine to refine described stock, put into strong acid dipping after having refined 15 minutes;
(4), heat treatment: the stock after dipping is put into electric furnace and heat-treats, first with 400 DEG C of heated at constant temperature after 30 minutes in described electric furnace, with the speed of rising per hour 60 DEG C, high-temperature process is carried out to stock, until temperature stops heating after reaching 700 DEG C, take out after making stock be cooled to 100 DEG C with stove, be put in after naturally cooling in air and obtain high heat-intensity titanium pipe.
Embodiment 3:
A production method for high heat-intensity titanium pipe, comprises the steps:
(1), select materials: select titanium alloy to be raw material, its chemical composition mass percent is:
Manganese: 0.15%; Nickel: 0.8%; Carbon: 0.06%; Iron: 0.32%; Vanadium: 1.15%; The single content of other inevitable impurity is no more than 0.15%, and total content is no more than 0.5%; All the other are titanium;
(2), stock manufacture: adopt melting, forging, lathe process method, above-mentioned titanium alloy raw material is made tubular blank;
(3), surface treatment: adopt grinding machine to roughly grind described stock, roughly ground rear employing clear water and surface finish sand grains is removed, and then adopted grinding machine to refine described stock, put into strong acid dipping after having refined 12 minutes;
(4), heat treatment: the stock after dipping is put into electric furnace and heat-treats, first with 375 DEG C of heated at constant temperature after 30 minutes in described electric furnace, with the speed of rising per hour 55 DEG C, high-temperature process is carried out to stock, until temperature stops heating after reaching 700 DEG C, take out after making stock be cooled to 100 DEG C with stove, be put in after naturally cooling in air and obtain high heat-intensity titanium pipe.
Be different from prior art, a small amount of v element is there is in the alloy raw material that the present invention adopts, can tissue when heat treatment in refinement titanium pipe, thus improve the hardness of titanium pipe, and by process of surface treatment and high temperature carries out in electric furnace the Technology for Heating Processing of corase grind, washing, fine grinding, pickling, titanium pipe can be born under the high temperature of 850 DEG C indeformable, improve the heat resistance of titanium pipe, titanium pipe and other tubing can be made only can need to be welded as a whole at the temperature of 200 DEG C simultaneously, improve the weldability of titanium pipe.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a production method for high heat-intensity titanium pipe, is characterized in that, comprises the steps:
(1), select materials: select titanium alloy to be raw material, its chemical composition mass percent is:
Manganese: 0.1%-0.2%; Nickel: 0.75%-0.9%; Carbon: 0.05%-0.07%; Iron: 0.3%-0.35%; Vanadium: 0.95-1.25%; The single content of other inevitable impurity is no more than 0.15%, and total content is no more than 0.5%; All the other are titanium;
(2), stock manufacture: adopt melting, forging, lathe process method, above-mentioned titanium alloy raw material is made tubular blank;
(3), surface treatment: adopt grinding machine to roughly grind described stock, roughly ground rear employing clear water and surface finish sand grains is removed, and then adopted grinding machine to refine described stock, put into strong acid dipping 10-15 minute after having refined;
(4), heat treatment: the stock after dipping is put into electric furnace and heat-treats, first with 350-400 DEG C of heated at constant temperature after 30 minutes in described electric furnace, with the speed of rising 50-60 per hour DEG C, high-temperature process is carried out to stock, until temperature stops heating after reaching 700 DEG C, take out after making stock be cooled to 100 DEG C with stove, be put in after naturally cooling in air and obtain high heat-intensity titanium pipe.
2. the production method of high heat-intensity titanium pipe according to claim 1, is characterized in that, described grinding machine corase grind adopts water mill emery wheel to carry out polishing processing.
3. the production method of high heat-intensity titanium pipe according to claim 1, is characterized in that, described grinding machine fine grinding adopts skive to carry out polishing processing.
4. the production method of high heat-intensity titanium pipe according to claim 1, is characterized in that, described strong acid to be concentration be 80% nitric acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510189529.7A CN104801932A (en) | 2015-04-21 | 2015-04-21 | Production method of high-heat strong titanium pipe |
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| CN201510189529.7A CN104801932A (en) | 2015-04-21 | 2015-04-21 | Production method of high-heat strong titanium pipe |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195897A (en) * | 2015-10-29 | 2015-12-30 | 无锡桥阳机械制造有限公司 | Titanium alloy solid phase connection process |
| CN105364428A (en) * | 2015-12-24 | 2016-03-02 | 常熟市欧迪管业有限公司 | Titanium tube for condenser |
| CN105382500A (en) * | 2015-12-24 | 2016-03-09 | 常熟市欧迪管业有限公司 | Titanium tube for heat exchanger |
| CN105397430A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for tube type heat exchanger |
| CN105397431A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for evaporator |
| CN105403094A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for condenser |
| CN105400996A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube |
| CN105397437A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for heat exchanger |
| CN105499943A (en) * | 2015-12-24 | 2016-04-20 | 常熟市欧迪管业有限公司 | Titanium pipe for heat exchange equipment |
| CN105571376A (en) * | 2015-12-24 | 2016-05-11 | 常熟市欧迪管业有限公司 | Titanium tube for S-shaped tubular heat exchanger |
| CN105598638A (en) * | 2015-12-24 | 2016-05-25 | 常熟市欧迪管业有限公司 | Titanium tube for coiled tube type heat exchanger |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195897A (en) * | 2015-10-29 | 2015-12-30 | 无锡桥阳机械制造有限公司 | Titanium alloy solid phase connection process |
| CN105364428A (en) * | 2015-12-24 | 2016-03-02 | 常熟市欧迪管业有限公司 | Titanium tube for condenser |
| CN105382500A (en) * | 2015-12-24 | 2016-03-09 | 常熟市欧迪管业有限公司 | Titanium tube for heat exchanger |
| CN105397430A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for tube type heat exchanger |
| CN105397431A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for evaporator |
| CN105403094A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for condenser |
| CN105400996A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube |
| CN105397437A (en) * | 2015-12-24 | 2016-03-16 | 常熟市欧迪管业有限公司 | Titanium tube for heat exchanger |
| CN105499943A (en) * | 2015-12-24 | 2016-04-20 | 常熟市欧迪管业有限公司 | Titanium pipe for heat exchange equipment |
| CN105571376A (en) * | 2015-12-24 | 2016-05-11 | 常熟市欧迪管业有限公司 | Titanium tube for S-shaped tubular heat exchanger |
| CN105598638A (en) * | 2015-12-24 | 2016-05-25 | 常熟市欧迪管业有限公司 | Titanium tube for coiled tube type heat exchanger |
| WO2017107952A1 (en) * | 2015-12-24 | 2017-06-29 | 常熟市欧迪管业有限公司 | Titanium tube for tubular heat exchanger |
| WO2017107953A1 (en) * | 2015-12-24 | 2017-06-29 | 常熟市欧迪管业有限公司 | Titanium tube for condenser |
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Application publication date: 20150729 |