CN102794299B - Rolling method of titanium steel composite board - Google Patents

Rolling method of titanium steel composite board Download PDF

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Publication number
CN102794299B
CN102794299B CN201210300445.2A CN201210300445A CN102794299B CN 102794299 B CN102794299 B CN 102794299B CN 201210300445 A CN201210300445 A CN 201210300445A CN 102794299 B CN102794299 B CN 102794299B
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titanium
steel composite
plate
composite slab
rolling
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CN102794299A (en
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董璞
吕利强
张清
李辉
谢文龙
王瑞琴
吴晓东
张晓卫
付文杰
周玉川
党鹏
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WESTERN TITANIUM TECHNOLOGIES Co Ltd
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WESTERN TITANIUM TECHNOLOGIES Co Ltd
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Abstract

The invention provides a rolling method of a titanium steel composite board. The rolling method comprises the following steps of: 1, selecting the titanium steel composite board provided with a titanium plate as an upper layer and a steel plate as a lower layer; 2, pre-treating a surface; 3, heating and soaking in a heating furnace; and 4, rolling on a hot mill, and removing scale and cooling by utilizing high-pressure water. According to different physical characteristics of the titanium plate and the steel plate under the high-temperature state, through setting the proper heating and soaking processes, and adopting the high pressure water to remove the scale and cool in the rolling process, an oxide skin on the surface of the titanium steel composite board is greatly reduced, and sundries on the surface of the titanium steel composite board are eliminated, meanwhile, the titanium plate and the steel plate are cooled at different water flows, so that the deformation degree of the titanium plate corresponds to the deformation degree of the steel plate, head buckle or unwarp phenomenon of the titanium steel composite board in the rolling process can be effectively prevented, and damage about a roller is greatly reduced; and the titanium steel composite board, rolled by the invention, has the advantages of clean and tidy surface, no foreign matters to press and good plate cut.

Description

A kind of milling method of titanium steel composite slab
Technical field
The invention belongs to metal material processing technical field, be specifically related to a kind of milling method of titanium steel composite slab.
Background technology
Composite board is welded together by metal molten by methods such as blast or rollings two kinds or the sheet material of two or more metal materials.Titanium steel composite slab is welded together by two kinds of metal moltens by the method for blast, then the composite plate being gone out all size by Rolling Production is to meet the demand of every field.Titanium steel composite slab efficiently utilizes the characteristic of low cost of the chemical stability of titanium, the excellent properties such as corrosion resistance and non-oxidizability and steel plate.Current titanium steel composite slab is mainly used in oil, chemical industry, vacuum salt production, and the fields such as electric power, shipbuilding, military project are a kind of ideal materials.
But, because titanium steel composite slab is composited by the metal material that titanium sheet material is different with steel board two kinds, and titanium sheet material and steel board resistance of deformation at that same temperature, extensibility etc. are different, make two kinds of metals when rolling mobility and flowing velocity inconsistent, in the operation of rolling, there will be discount or upwarp phenomenon, can cause the damage of titanium steel composite slab and roll time serious, causing cannot normal process and use.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned the deficiencies in the prior art, to provide a kind of milling method of titanium steel composite slab.The method is according to titanium plate and steel plate different physical characteristics at high operating temperatures, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure carry out de-scaling to titanium steel composite slab and cool, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, adopt different discharge to be that titanium plate and steel plate cool to reach titanium plate effect suitable with steel plate deformed degree simultaneously, effectively prevent the discount of titanium steel composite board in the operation of rolling or upwarp phenomenon, substantially reducing the injury of breaker roll; Utilize that the surface clean of the titanium steel composite board of the method rolling is clean and tidy, foreign press-in, template is good.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of milling method of titanium steel composite slab, is characterized in that, the method comprises the following steps:
Step one, choose that upper strata is titanium plate, lower floor is the titanium steel composite slab of steel plate; The thickness of described titanium plate is 4mm ~ 30mm, and the thickness of described steel plate is 20mm ~ 200mm;
Step 2, the outer surface of the titanium steel composite slab chosen in step one to be cleaned out, adopt hammer to put down at surrounding corner angle or adopt flame cutting machine excision, then apply one deck antioxidizing paint as antioxidation coating on titanium plate surface, obtain pretreated titanium steel composite slab;
Step 3, heating warm area titanium steel composite slab pretreated described in step 2 being placed in pusher-type furnace heat 2h ~ 2.5h, the temperature controlling titanium plate and steel plate is 790 DEG C ~ 810 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 790 DEG C ~ 810 DEG C, surface of steel plate temperature is 850 DEG C ~ 870 DEG C, and soaking time is 30min ~ 50min;
Step 4, the titanium steel composite slab after soaking in step 3 to be rolled on hot-rolling mill, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, in titanium steel composite slab, the water under high pressure flow on titanium plate surface is 60L/s ~ 65L/s, the water under high pressure flow on titanium steel composite slab light plate surface is 35L/s ~ 40L/s, and the general working rate of described rolling is 70% ~ 90%.
The milling method of above-mentioned a kind of titanium steel composite slab, is characterized in that, the pressure of water under high pressure described in step 4 is 13MPa ~ 15MPa.
The milling method of above-mentioned a kind of titanium steel composite slab, is characterized in that, the road number of times of rolling described in step 4 is 6 ~ 15 passages.
The milling method of above-mentioned a kind of titanium steel composite slab, is characterized in that, the reduction in pass of rolling described in step 4 is 0.5mm ~ 15mm.
The milling method of above-mentioned a kind of titanium steel composite slab, is characterized in that, 1 ~ 5 passage in the described operation of rolling all adopts water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously.
Antioxidizing paint of the present invention is this area conventional products, prior art can be utilized as CN101250462(patent name: a kind of rare metal high-heat anti-oxidation lubricating paint and preparation method thereof, patentee: Xibei Inst. of Non-Ferrous Metals) prepare, the non-ferrous metal hot-working antioxidizing paint also produced as Xi'an Tai Jin electrochemistry Co., Ltd by buying commercial goods obtains.
The present invention compared with prior art has the following advantages:
1, the milling method of titanium steel composite slab of the present invention, first foreign material and the surrounding corner angle of titanium steel composite slab outer surface are cleared up, effectively reduce the injury on surface irregularities and surrounding corner angle breaker roll surface, thus serve the effect of protection rolling equipment, effectively prevent corner angle and surface irregularities in the process of rolling to be pressed into composite surface simultaneously, ensure that board surface quality;
2, the milling method of titanium steel composite slab of the present invention, applies one deck antioxidizing paint as antioxidation coating on the surface of upper strata titanium plate, effectively reduces the oxidation reaction of titanium steel composite slab titanium in heating and equal thermal process;
3, the milling method of titanium steel composite slab of the present invention, titanium steel composite slab is consistent with the heating-up temperature of steel plate at heating warm area titanium plate is 790 DEG C ~ 810 DEG C, soaking warm area surface of steel plate temperature is 850 DEG C ~ 870 DEG C, titanium plate surface temperature is 790 DEG C ~ 810 DEG C, by making steel billet temperature suitably higher than titanium plate temperature, effectively preventing the discount of titanium steel composite slab in the operation of rolling or upwarping phenomenon;
4, the milling method of titanium steel composite slab of the present invention, adopts high-pressure water descaling to not only reduce the oxide skin of composite plate upper and lower surface, and can remove the foreign material of composite surface, decreases the foreign matter press-in of composite surface.Simultaneously, because titanium plate rolling temperature is lower than rolling temperature of steel plate, in the operation of rolling, titanium plate mobility is better relative to steel plate, therefore in the operation of rolling, composite plate easily produces phenomenon of kowtowing, dephosphorize by high pressure water is while removal surface scale, the effect reducing titanium plate and steel billet temperature can be played by the water under high pressure flow of adjustment upper strata titanium plate and lower floor's steel plate, reach effect that titanium plate is suitable with steel plate deformed degree, thus greatly alleviate even to eliminate and to kowtow phenomenon, thus serve the effect ensureing template and proterctive equipment;
5, the milling method of titanium steel composite slab of the present invention, breaker roll injury is little, and the titanium steel composite slab surface foreign press-in after rolling, template is good.
Below in conjunction with embodiment, the present invention is described in further detail.
Detailed description of the invention
Embodiment 1
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA1/Q235 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 6mm, and the thickness of described steel plate is 93mm;
Step 2, the outer surface of the TA1/Q235 titanium steel composite slab chosen in step one to be cleaned out, hammer is adopted to put down at surrounding corner angle, then apply the Ti88 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA1/Q235 titanium steel composite slab;
Step 3, the heating warm area that TA1/Q235 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2h, the temperature controlling titanium plate and steel plate is 800 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 800 DEG C, surface of steel plate temperature is 860 DEG C, and control soaking time is 40min;
Step 4, the TA1/Q235 titanium steel composite slab after soaking in step 3 is carried out 10 passes on hot-rolling mill, each reduction in pass is respectively: 15mm, 12mm, 10mm, 9mm, 8mm, 8mm, 6mm, 5mm, 4mm, 2.8mm, general working rate is 80.6%, adopts 15MPa water under high pressure to carry out de-scaling and cooling to TA1/Q235 titanium steel composite slab in the process of front 4 passes simultaneously, the water under high pressure flow controlling upper strata titanium plate is 60L/s, and the water under high pressure flow of lower floor's steel plate is 35L/s; Obtain the TA1/Q235 titanium steel composite slab that thickness is 19.2mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
Embodiment 2
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA2/Q235 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 6mm, and the thickness of described steel plate is 63mm;
Step 2, the outer surface of the TA2/Q235 titanium steel composite slab chosen in step one to be cleaned out, surrounding corner angle are adopted flame cutting machine excision, then apply the Ti87 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA2/Q235 titanium steel composite slab;
Step 3, the heating warm area that TA2/Q235 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2h, the temperature controlling titanium plate and steel plate is 810 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 810 DEG C, surface of steel plate temperature is 870 DEG C, and control soaking time is 35min;
Step 4, the TA2/Q235 titanium steel composite slab after soaking in step 3 is carried out 9 passes on hot-rolling mill, each reduction in pass is respectively: 14mm, 12mm, 10mm, 8mm, 6mm, 3mm, 2mm, 0.8mm, 0.5mm, general working rate is 81.6%, in the process of front 3 passes, adopt 14MPa water under high pressure to carry out de-scaling and cooling to TA2/Q235 titanium steel composite slab, the water under high pressure flow controlling upper strata titanium plate is 60L/s, and the water under high pressure flow of lower floor's steel plate is 35L/s simultaneously; Obtain the TA2/Q235 titanium steel composite slab that thickness is 12.7mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
Embodiment 3
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA2/Q235 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 4mm, and the thickness of described steel plate is 96mm;
Step 2, the outer surface of the TA2/Q235 titanium steel composite slab chosen in step one to be cleaned out, hammer is adopted to put down at surrounding corner angle, then apply the Ti89 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA2/Q235 titanium steel composite slab;
Step 3, the heating warm area that TA2/Q235 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2.2h, the temperature controlling titanium plate and steel plate is 790 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 790 DEG C, surface of steel plate temperature is 850 DEG C, and control soaking time is 40min;
Step 4, the TA2/Q235 titanium steel composite slab after soaking in step 3 is carried out 15 passes on hot-rolling mill, each reduction in pass is respectively: 15mm, 12mm, 10mm, 8mm, 7mm, 6mm, 6mm, 5mm, 5mm, 5mm, 3mm, 3mm, 2mm, 2mm, 1mm, general working rate is 90%, in the process of front 4 passes, adopt 15MPa water under high pressure to carry out de-scaling and cooling to TA2/Q235 titanium steel composite slab, the water under high pressure flow controlling upper strata titanium plate is 60L/s, and the water under high pressure flow of lower floor's steel plate is 40L/s simultaneously; Obtain the TA2/Q235 titanium steel composite slab that thickness is 10mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
Embodiment 4
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA1/Q345 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 10mm, and the thickness of described steel plate is 36mm;
Step 2, the outer surface of the TA1/Q345 titanium steel composite slab chosen in step one to be cleaned out, hammer is adopted to put down at surrounding corner angle, then apply the Ti88 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA1/Q345 titanium steel composite slab;
Step 3, the heating warm area that TA1/Q345 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2h, the temperature controlling titanium plate and steel plate is 810 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 810 DEG C, surface of steel plate temperature is 870 DEG C, and control soaking time is 30min;
Step 4, the TA1/Q345 titanium steel composite slab after soaking in step 3 is carried out 6 passes on hot-rolling mill, each reduction in pass is respectively: 12mm, 8mm, 6mm, 3mm, 2mm, 1.2mm, general working rate is 70%, adopts 13MPa water under high pressure to carry out de-scaling and cooling to TA1/Q345 titanium steel composite slab in the process of front 2 passes simultaneously, the water under high pressure flow controlling upper strata titanium plate is 65L/s, and the water under high pressure flow of lower floor's steel plate is 35L/s; Obtain the TA2/Q235 titanium steel composite slab that thickness is 13.8mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
Embodiment 5
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA2/Q345 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 10mm, and the thickness of described steel plate is 100mm;
Step 2, the outer surface of the TA2/Q345 titanium steel composite slab chosen in step one to be cleaned out, surrounding corner angle are adopted flame cutting machine excision, then apply the Ti87 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA2/Q345 titanium steel composite slab;
Step 3, the heating warm area that TA2/Q345 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2.3h, the temperature controlling titanium plate and steel plate is 810 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 810 DEG C, surface of steel plate temperature is 850 DEG C, and control soaking time is 45min;
Step 4, the TA2/Q345 titanium steel composite slab after soaking in step 3 is carried out 15 passes on hot-rolling mill, each reduction in pass is respectively: 15mm, 15mm, 12mm, 11mm, 10mm, 9mm, 6mm, 5mm, 4mm, 3mm, 2mm, 2mm, 2mm, 2mm, 1mm, general working rate is 90%, in the process of front 4 passes, adopt 15MPa water under high pressure to carry out de-scaling and cooling to TA2/Q345 titanium steel composite slab, the water under high pressure flow controlling upper strata titanium plate is 60L/s, and the water under high pressure flow of lower floor's steel plate is 40L/s simultaneously; Obtain the TA2/Q235 titanium steel composite slab that thickness is 11mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
Embodiment 6
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA1/Q235 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 4mm, and the thickness of described steel plate is 20mm;
Step 2, the outer surface of the TA1/Q235 titanium steel composite slab chosen in step one to be cleaned out, hammer is adopted to put down at surrounding corner angle, then apply the Ti89 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA1/Q235 titanium steel composite slab;
Step 3, the heating warm area that TA1/Q235 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2h, the temperature controlling titanium plate and steel plate is 800 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 800 DEG C, surface of steel plate temperature is 860 DEG C, and control soaking time is 30min;
Step 4, the TA1/Q235 titanium steel composite slab after soaking in step 3 is carried out 6 passes on hot-rolling mill, each reduction in pass is respectively: 8mm, 5mm, 3mm, 2mm, 1mm, 1mm, general working rate is 83.3%, adopts 13MPa water under high pressure to carry out de-scaling and cooling to TA1/Q235 titanium steel composite slab in the process of the 1st passes simultaneously, the water under high pressure flow controlling upper strata titanium plate is 60L/s, and the water under high pressure flow of lower floor's steel plate is 35L/s; Obtain the TA1/Q235 titanium steel composite slab that thickness is 4mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
Embodiment 7
The milling method of the titanium steel composite slab of the present embodiment comprises the following steps:
Step one, choose the TA1/Q235 titanium steel composite slab that upper strata is titanium plate, lower floor is steel plate; The thickness of described titanium plate is 30mm, and the thickness of described steel plate is 200mm;
Step 2, the outer surface of the TA1/Q235 titanium steel composite slab chosen in step one to be cleaned out, hammer is adopted to put down at surrounding corner angle, then apply the Ti88 non-ferrous metal hot-working antioxidizing paint of one deck Xi'an Tai Jin electrochemistry Co., Ltd production as antioxidation coating on titanium plate surface, obtain pretreated TA1/Q235 titanium steel composite slab;
Step 3, the heating warm area that TA1/Q235 titanium steel composite slab pretreated described in step 2 is placed in pusher-type furnace is heated 2.5h, the temperature controlling titanium plate and steel plate is 800 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 800 DEG C, surface of steel plate temperature is 860 DEG C, and control soaking time is 50min;
Step 4, the TA1/Q235 titanium steel composite slab after soaking in step 3 is carried out 15 passes on hot-rolling mill, each reduction in pass is respectively: 15mm, 15mm, 15mm, 15mm, 15mm, 15mm, 15mm, 15mm, 15mm, 12mm, 12mm, 8mm, 6mm, 5mm, 2mm, general working rate is 78.3%, in the process of front 5 passes, adopt 15MPa water under high pressure to carry out de-scaling and cooling to TA1/Q235 titanium steel composite slab, the water under high pressure flow controlling upper strata titanium plate is 65L/s, and the water under high pressure flow of lower floor's steel plate is 40L/s simultaneously; Obtain the TA1/Q235 titanium steel composite slab that thickness is 50mm.
The present embodiment is according to the different physical characteristics of titanium plate from steel plate, by setting suitable heating and uniform heating process, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, not only greatly reduce the oxide skin on titanium steel composite board surface, and remove the foreign material on titanium steel composite board surface, effectively prevent the discount of titanium steel composite board in the operation of rolling simultaneously or upwarp phenomenon, substantially reducing the injury of breaker roll; The surface clean of the titanium steel composite board of employing the present embodiment rolling is clean and tidy, foreign press-in, and template is good.
With in sum, be only preferred embodiment of the present invention, not the present invention imposed any restrictions.Every above embodiment is done according to invention technical spirit any simple modification, change and equivalence change, all still belong in the protection domain of technical solution of the present invention.

Claims (3)

1. a milling method for titanium steel composite slab, is characterized in that, the method comprises the following steps:
Step one, choose that upper strata is titanium plate, lower floor is the titanium steel composite slab of steel plate; The thickness of described titanium plate is 4mm ~ 30mm, and the thickness of described steel plate is 20mm ~ 200mm;
Step 2, the outer surface of the titanium steel composite slab chosen in step one to be cleaned out, adopt hammer to put down at surrounding corner angle or adopt flame cutting machine excision, then apply one deck antioxidizing paint as antioxidation coating on titanium plate surface, obtain pretreated titanium steel composite slab;
Step 3, heating warm area titanium steel composite slab pretreated described in step 2 being placed in pusher-type furnace heat 2h ~ 2.5h, the temperature controlling titanium plate and steel plate is 790 DEG C ~ 810 DEG C, then the soaking warm area pushing pusher-type furnace carries out equal heat treatment, controlling titanium plate surface temperature is 790 DEG C ~ 810 DEG C, surface of steel plate temperature is 850 DEG C ~ 870 DEG C, and soaking time is 30min ~ 50min;
Step 4, the titanium steel composite slab after soaking in step 3 to be rolled on hot-rolling mill, and in the operation of rolling, adopt water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously, in titanium steel composite slab, the water under high pressure flow on titanium plate surface is 60L/s ~ 65L/s, the water under high pressure flow on titanium steel composite slab light plate surface is 35L/s ~ 40L/s, and the general working rate of described rolling is 70% ~ 90%; The road number of times of described rolling is 6 ~ 15 passages; 1 ~ 5 passage in the described operation of rolling all adopts water under high pressure to carry out de-scaling and cooling to titanium steel composite slab simultaneously.
2. the milling method of a kind of titanium steel composite slab according to claim 1, is characterized in that, the pressure of water under high pressure described in step 4 is 13MPa ~ 15MPa.
3. the milling method of a kind of titanium steel composite slab according to claim 1, is characterized in that, the reduction in pass of rolling described in step 4 is 0.5mm ~ 15mm.
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CN109351774A (en) * 2018-09-30 2019-02-19 舞阳钢铁有限责任公司 A kind of heating rolling method of generous titanium steel composite board
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CN110961455A (en) * 2019-11-28 2020-04-07 湖南湘投金天钛金属股份有限公司 Preparation process of titanium steel composite coil
CN111360069A (en) * 2020-04-20 2020-07-03 湖南卡密尔新材料科技有限公司 Production method of industrial titanium plate

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