CN102019292B - Preparation method of titanium-steel composite plate thin strip - Google Patents
Preparation method of titanium-steel composite plate thin strip Download PDFInfo
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- CN102019292B CN102019292B CN201010539333A CN201010539333A CN102019292B CN 102019292 B CN102019292 B CN 102019292B CN 201010539333 A CN201010539333 A CN 201010539333A CN 201010539333 A CN201010539333 A CN 201010539333A CN 102019292 B CN102019292 B CN 102019292B
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Abstract
The invention relates to the technical field of metallurgy, in particular to a preparation method of a titanium-steel composite plate thin strip, which is characterized by comprising the following steps of: firstly, uncoiling a cold rolled metal strip by using an uncoiling machine; secondly, sending the uncoiled strip to a heating furnace to be preheated; thirdly, thermally spraying the preheated strip, cooling to room temperature in air; fourthly, sending the cooled titanium-steel composite plate thin strip to an on-line heating device to ensure that the temperature of the sprayed titanium-steel composite plate thin strip raises to 200-1,000 DEG C at a temperature gradient of 30-300 DEG C/s; and fifthly, enabling the heated titanium-steel composite plate thin strip to enter a finishing mill at a speed of 0.3-2m/s to be rolled, wherein the primary down rate is more than 5 percent, the total down rate is more than 30 percent, the interface bond strength of the obtained titanium-steel composite plate thin strip is more than 300MPa and the surface roughness is less than 0.01mm.
Description
Technical field
The present invention relates to metallurgical technology field, be specifically related to a kind of preparation method of titanium-steel composite board strip.
Background technology
Titanium-steel plate band is to be base material by a kind of metal, and another kind of metal is a cover material, is combined with each other resultant through certain means.The titanium-steel composite board band is with the characteristics of two kinds of metals, i.e. the strong corrosion resistance of titanium and the low cost property of steel, so titanium-steel plate band has a very wide range of applications at aspects such as petrochemical industry, thermal power generation, boiler heatings.The method of traditional mode of production titanium-steel plate strip mainly contains two kinds: a kind of is the blast composite algorithm, through the compound thicker titanium-steel composite board relatively that obtains that explodes, finally rolls into the titanium-steel composite board strip through rolling method then earlier.But this method environmental pollution is bigger, and the plate shape of composite plate is also good inadequately; Another kind method is a roll-bonding method, at first obtains titanium-steel composite board through the hot rolling method, carries out the iron scale that the surface is removed in pickling then, carries out cold rollingly at last, obtains the titanium-steel composite board strip.The course of hot rolling of this method is realized under atmosphere, so interface oxidation is serious, and the pickling environmental pollution of this method is bigger in addition, and complex process.More than two kinds of methods of producing titanium-steel plate strip all be that the preparation composite plate is carried out reroll then and obtained the plate strip earlier, it is too complicated that these methods all seem.
Plasma spray technology is meant utilizes a kind of thermal source that sprayed on material is heated to molten condition, makes its atomizing through air-flow, and high velocity jet forms coating at surface of the work, so hot spray process can be used to produce the titanium-steel composite board strip.The essential characteristic of spraying process is that sprayed on material needs thermal source heating, sprayed coating and workpiece combine to belong to mechanical bond.Advantage is that workpiece deformation is little for matrix does not change.But in the thermal spraying production process, its shortcoming is also very obvious.For example: face coat forms pore, micro-crack and oxide inclusions easily, and it is incomplete to be easy to generate the dusty spray pellet melting, with the metallurgical bond strength < 100MPa of metallic substrate surface.
Summary of the invention
The objective of the invention is deficiency, a kind of preparation method of titanium-steel composite board strip is provided, obtain strong adhesion between coating and the matrix, clad surface smooth composite plate strip Paint Gloss to the prior art existence.
The technical scheme that realizes the object of the invention is: at first cold-rolled steel sheet is sent in the heating furnace 50 ~ 700 ℃ of preheatings after with the uncoiler uncoiling; To the steel plate strip thermal spraying titanium valve coating of preheating, form the titanium-steel composite board strip, more afterwards with its cool to room temperature in air; The titanium-steel composite board strip of cooling is sent into online heater; Make the titanium-steel composite board strip after the spraying be warming up to 200 ~ 1000 ℃ with the thermograde of 30 ~ 300 ℃/s; Making titanium-steel composite board strip after the heat treatment get into finishing mill with the speed of 0.3 ~ 2 m/s at last is rolled; First percentage pass reduction>5%, total reduction ratio>30%, obtain final products.
The coating layer thickness of described steel plate strip thermal spraying titanium valve to preheating is 0.01 ~ 2mm;
The interface bond strength of described titanium-steel composite board strip final products>300MPa, surface roughness < 0.01mm.
With use compared with techniques at present, characteristics of the present invention and beneficial effect thereof are:
1, the present invention adopts online nonstorage calorifier HOP with the thermograde of 30 ~ 300 ℃/s the titanium-steel composite board strip after spraying to be heated, because the programming rate ratio is very fast, so the surperficial degree of oxidation of titanium-steel composite board strip obtains bigger reduction;
2, the present invention makes titanium-steel composite board strip after the heat treatment get into finishing mill fast to be rolled; Make the coating that produces in the thermal spray process by further compacting; Eliminated the coating hole; Increased the adhesion between coating and the substrate, the titanium-steel composite board interface bond strength is significantly improved, from < 100MPa is strengthened to>300MPa of prior art.
Description of drawings
Preparation method's sketch map of Fig. 1 titanium-steel composite board strip, wherein: 1 uncoiler, 2 first backing rolls, 3 heating furnaces; 4 hot spray apparatus, 5 nonstorage calorifier HOP (heat-treatment online process), 6 finishing mills; 7 straighteners, 8 second backing rolls, 9 coiling machines.
The specific embodiment
Below in conjunction with embodiment the present invention is elaborated, but protection scope of the present invention is not limited only to following embodiment:
Embodiment 1:
At first that 2mm is thick austenite stainless steel plate strip uncoiling is sent into and is heated to 50 ℃ in the heating furnace; Get into continuously the spraying active section then, the upper and lower surfaces of corrosion resistant plate strip is carried out the pure titanium valve of thermal spraying, having formed with the austenitic stainless steel is matrix, the stainless steel of the thick pure titanium coating of two-layer 0.01mm-pure titanium composite plate strip; Cool to room temperature in air; Make the thin online nonstorage calorifier HOP (Heat-treatment Online Process) of entering of plate after the spraying subsequently; Composite sheet is heated 4s be warmed up to 200 ℃, get into finishing mill then, rolling total reduction ratio is 50%; Composite plate is rolled into the thick composite plate strip of gross thickness 1.01mm with the mill speed of 1m/s; Wherein, the intermediate layer stainless steel is that 1mm is thick, and the pure titanium layer 0.005mm of levels is thick.At last the composite plate strip is batched, obtain interface bond strength 310MPa, the titanium-steel composite board strip that surface roughness is 1 micron.
Embodiment 2:
At first that 3mm is thick austenite stainless steel plate strip uncoiling is sent into and is heated to 220 ℃ in the heating furnace; Get into continuously the spraying active section then, the upper and lower surfaces of corrosion resistant plate strip is carried out the pure titanium valve of thermal spraying, having formed with the austenitic stainless steel is matrix, the stainless steel of the thick pure titanium coating of two-layer 0.1mm-pure titanium composite plate strip; Cool to room temperature in air; Make the thin online nonstorage calorifier HOP (Heat-treatment Online Prcess) of entering of plate after the spraying subsequently; Composite sheet is heated 4s be warmed up to 750 ℃, get into finishing mill then, rolling total reduction ratio is 50%; Composite plate is rolled into the thick composite plate strip of gross thickness 1.6mm with the mill speed of 2m/s; Wherein, the intermediate layer stainless steel is that 1.5mm is thick, and the pure titanium layer 0.05mm of levels is thick.At last the composite plate strip is batched, obtain interface bond strength 370MPa, the titanium-steel composite board strip that surface roughness is 4 microns.
Embodiment 3:
At first that 4mm is thick austenite stainless steel plate strip uncoiling is sent into and is heated to 700 ℃ in the heating furnace; Get into continuously the spraying active section then, the upper and lower surfaces of corrosion resistant plate strip is carried out the pure titanium valve of thermal spraying, having formed with the austenitic stainless steel is matrix, the stainless steel of the thick pure titanium coating of two-layer 2mm-pure titanium composite plate strip; Cool to room temperature in air; Make the thin online nonstorage calorifier HOP (Heat-treatment Online Prcess) of entering of plate after the spraying subsequently; Composite sheet is heated 4s be warmed up to 1000 ℃, get into finishing mill then, rolling total reduction ratio is 50%; Composite plate is rolled into the thick composite plate strip of gross thickness 4mm with the 0.3m/s mill speed; Wherein, the intermediate layer stainless steel is that 2mm is thick, and the pure titanium layer 1mm of levels is thick.At last the composite plate strip is batched, obtain interface bond strength 320MPa, the titanium-steel composite board strip that surface roughness is 7 microns.
Claims (3)
1. the preparation method of a titanium-steel composite board strip is characterized in that carrying out as follows: at first cold-rolled steel sheet is sent in the heating furnace 50～700 ℃ of preheatings after with the uncoiler uncoiling; To the steel plate strip upper and lower surfaces thermal spraying titanium valve coating of preheating, form the titanium-steel composite board strip, more afterwards with its cool to room temperature in air; The titanium-steel composite board strip of cooling is sent into online heater; Make the titanium-steel composite board strip after the spraying be warming up to 200～1000 ℃ with the thermograde of 45～245 ℃/s; Making titanium-steel composite board strip after the heat treatment get into finishing mill with the speed of 0.3～2 m/s at last is rolled; First percentage pass reduction>5%, total reduction ratio is 50%, obtains final products.
2. the preparation method of a kind of titanium-steel composite board strip according to claim 1 is characterized in that the coating layer thickness of described steel plate strip thermal spraying titanium valve to preheating is 0.01～2mm.
3. the preparation method of a kind of titanium-steel composite board strip according to claim 1 is characterized in that the interface bond strength of described titanium-steel composite board strip final products>300MPa, surface roughness < 0.01mm.
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| CN201010539333A CN102019292B (en) | 2010-11-11 | 2010-11-11 | Preparation method of titanium-steel composite plate thin strip |
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| CN201010539333A CN102019292B (en) | 2010-11-11 | 2010-11-11 | Preparation method of titanium-steel composite plate thin strip |
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| CN102019292B true CN102019292B (en) | 2012-09-05 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773254B (en) * | 2012-07-26 | 2015-03-25 | 李向民 | Preparation method of titanium-steel single-sided composite board |
| CN103143566B (en) * | 2013-03-06 | 2015-11-04 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of Titanium-steel composite board roll and production method thereof |
| CN105018923B (en) * | 2014-04-29 | 2018-10-02 | 宝山钢铁股份有限公司 | One kind covering titanium low-carbon steel composite board preparation method |
| CN105018879B (en) * | 2014-04-29 | 2018-06-01 | 宝山钢铁股份有限公司 | One kind covers titanium stainless steel clad plate preparation method |
| CN110125180B (en) * | 2018-02-09 | 2021-03-23 | 常州第六元素材料科技股份有限公司 | Reinforced nonferrous metal plate and preparation method thereof |
| CN111819012B (en) * | 2018-06-27 | 2022-05-24 | 东邦钛株式会社 | Method for producing titanium material for hot rolling and method for producing hot rolled material |
| CN111663134A (en) * | 2019-03-05 | 2020-09-15 | 中国科学院金属研究所 | Method for producing titanium steel composite plate by metal powder solid deposition-rolling |
| CN112439784B (en) * | 2019-08-29 | 2023-09-22 | 青岛九环新越新能源科技股份有限公司 | Composite metal belt production method based on liquid metal |
| CN115805236A (en) * | 2023-02-09 | 2023-03-17 | 西安稀有金属材料研究院有限公司 | Process for preparing kovar alloy/AgCu alloy composite foil strip |
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Effective date of registration: 20180717 Address after: 110027 7-5 Hun River fifteen economic and Technological Development Zone, Shenyang, Liaoning Patentee after: Shenyang science and Technology Co.,Ltd. Ansett materials Address before: 110819 No. 3 lane, Heping Road, Heping District, Shenyang, Liaoning 11 Patentee before: Northeastern University |
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