CN104209323A - Carbon steel plate blank combined surface pretreatment method for sandwich rolling process thick plate production - Google Patents
Carbon steel plate blank combined surface pretreatment method for sandwich rolling process thick plate production Download PDFInfo
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- CN104209323A CN104209323A CN201310212003.7A CN201310212003A CN104209323A CN 104209323 A CN104209323 A CN 104209323A CN 201310212003 A CN201310212003 A CN 201310212003A CN 104209323 A CN104209323 A CN 104209323A
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Abstract
The invention provides a carbon steel plate blank combined surface pretreatment method for sandwich rolling process thick plate production. The method includes the following steps that firstly, plates are prepared, namely, two plate blanks made of the same material, length and width are manufactured; secondly, surface oxide scales are removed; thirdly, surface special treatment is conducted, namely, surface roughness control processing is conducted on the surface of the combined surface of one plate blank through a milling machine, wherein the processed surface roughness Ra ranges from 0.16 micrometer to 0.32 micrometer, or surface roughness control processing is conducted on the surface through a planing machine, wherein the processed roughness Ra ranges from 5 micrometers to 50 micrometers; surface roughness control processing is conducted on the surface of the combined surface of the other plate blank through the planing machine, wherein the processed surface roughness Ra ranges from 50 micrometers to 500 micrometers. Under the condition that a vacuum cavity is not used, vacuum in the plate blanks can be kept in the assembly process, the combined surfaces of the plate blanks are of fine structures, and combination efficiency of the contact surfaces of the upper plate blank and the lower plate blank can be improved in the rolling process.
Description
Technical field
The present invention relates to thick composite plate manufacturing technology field, particularly a kind of sandwich rolling process produces slab carbon steel plate slab mating surface preprocess method.
Background technology
Current, there have been composite rolling technology in domestic and international some iron and steel enterprises, before realizing composite rolling technology, must carry out composite billet pretreatment to slab, and the mating surface cleaning of slab is also the critical process path had to pass through.
Produce in slab technology at the composite rolling of current extensive employing, the surface pretreatment of the slab before composite billet pretreatment is to remove iron scale, and does not comprise the control of effects on surface roughness.Under this process route condition, follow-up composite billet after assembly welding in vacuum chamber is in rolling, and its joint efficiency can reach user's requirement.The technology of the present invention, when the process of continuous casting billet scale on surface, adds Roughness Surface on Control, and the composite billet after assembly does not need, by assembly welding in vacuum chamber, to improve combined efficiency further in the operation of rolling.
Summary of the invention
A kind of sandwich rolling process is the object of the present invention is to provide to produce slab carbon steel plate slab mating surface preprocess method, can under the condition not using vacuum chamber, the object maintaining vacuum is reached in slab in assembly process, and, the control of surface roughness makes slab faying face have fine structure, and in the operation of rolling, these fine structures of upper and lower slab contact surface form trickle contact, obtain larger rolling stress to concentrate, thus improve joint efficiency.
For achieving the above object, technical scheme of the present invention is:
A kind of sandwich rolling process produces slab carbon steel plate slab mating surface preprocess method, comprises the steps:
1) slave board
Make two bulk matter, length and wide equal slab;
2) scale on surface is removed
Adopt Mechanical Method that the faying face scale on surface of two boards base is cleaned out;
3) specially treated on surface
To the faying face surface of block slab of in two boards base, adopt the mode of milling machine, carry out surface roughening processing to it, the surface roughness after processing is 0.16 μm-0.32 μm; Or adopt the mode of planer, carry out surface roughening processing to it, the roughness after processing is 5 μm-50 μm;
To the faying face surface of another block slab, adopt the mode of planer, carry out surface roughening processing to it, the surface roughness after processing is 50 μm-500 μm.
The present invention, by adjustment machining equipment (milling machine, planer) parameter, controls steel slab surface roughness range, and its processing mode is far away, and not in GB/T1031 critical field, (milling machine machining accuracy is IT9-IT8, Ra6.3 ~ Ra1.6; Planer machining accuracy is IT9 ~ IT8, Ra25 ~ Ra1.6), and realize with group two boards base difference in surface roughness.
The present invention, under the condition not utilizing vacuum chamber, only utilizes simple vacuum machine, can realize equally extracting and maintain the vacuum at slab combination interface place by the present invention.And after the slab after removing surface carries out assembly welding, in the operation of rolling, give full play to the effect of surface roughness, improve interface cohesion efficiency.The present invention is exactly in the pretreatment base process in order to realize needed for slab composite rolling, in order to realize the surrounding welding of not composite billet under vacuum chamber condition and effective implemention and before maintaining the vacuum state in the middle of two boards base, to the special surface process that steel slab surface is carried out.
The invention has the beneficial effects as follows:
By the slab after the technology of the present invention process, its surface is carried out to the control of roughness, on the one hand, under the condition not using vacuum chamber, the object maintaining vacuum can be reached in slab in assembly process, in addition on the one hand, the control of surface roughness makes slab faying face have fine structure, and in the operation of rolling, these fine structures of upper and lower slab contact surface form trickle contact, obtain larger rolling stress to concentrate, thus improve joint efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
See Fig. 1, sandwich rolling process of the present invention produces slab carbon steel plate slab mating surface preprocess method, comprises the steps:
1) slave board
Make two bulk matter, length and wide equal slab;
2) scale on surface is removed
Adopt Mechanical Method that the faying face scale on surface of two boards base is cleaned out;
3) specially treated on surface
To the faying face surface of block slab of in two boards base 1, adopt the mode of milling machine, carry out surface roughening processing to it, the surface roughness after processing is 0.2 μm; Or adopt the mode of planer, carry out surface roughening processing to it, the roughness after processing is 23 μm; A is the faying face of slab 1,2;
To the faying face surface of another block slab 2, adopt the mode of planer, carry out surface roughening processing to it, the surface roughness after processing is respectively 87 μm and 125 μm.
Prepared 2 groups of composite billets in the embodiment of the present invention, after its composite billet removing surface, parameter is see table 1.
Placed in heating furnace by 2 groups of composite billets and be heated to 1200 DEG C, by identical rolling mill practice rolling after soaking, detect a flaw to the composite plate after rolling, result shows, by surface-treated slab of the present invention, after rolling, all can realize Rolling compund.
Table 1
Claims (1)
1. sandwich rolling process produces a slab carbon steel plate slab mating surface preprocess method, comprises the steps:
1) slave board
Make the slab that two bulk matter are identical;
2) scale on surface is removed
Adopt Mechanical Method that the faying face scale on surface of two boards base is cleaned out;
3) specially treated on surface
To the faying face surface of block slab of in two boards base, adopt the mode of milling machine, carry out Roughness Surface on Control processing to it, the surface roughness Ra after processing is 0.16 μm-0.32 μm; Or adopt the mode of planer, carry out Roughness Surface on Control processing to it, the roughness after processing is 5 μm-50 μm;
To the faying face surface of another block slab, adopt the mode of planer, carry out Roughness Surface on Control processing to it, the surface roughness Ra after processing is 50 μm-500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310212003.7A CN104209323B (en) | 2013-05-31 | 2013-05-31 | A kind of sandwich rolling process produces slab carbon steel plate slab mating surface preprocess method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310212003.7A CN104209323B (en) | 2013-05-31 | 2013-05-31 | A kind of sandwich rolling process produces slab carbon steel plate slab mating surface preprocess method |
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| CN104209323A true CN104209323A (en) | 2014-12-17 |
| CN104209323B CN104209323B (en) | 2016-10-05 |
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| CN201310212003.7A Active CN104209323B (en) | 2013-05-31 | 2013-05-31 | A kind of sandwich rolling process produces slab carbon steel plate slab mating surface preprocess method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478476A (en) * | 2016-01-21 | 2016-04-13 | 太原科技大学 | Method for rolling metal composite plate strip |
| CN105478475A (en) * | 2016-01-21 | 2016-04-13 | 太原科技大学 | Method for rolling high-strength metal composite plate |
| CN108118262A (en) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | A kind of plastic mould clad steel plate and its manufacturing method |
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| US20040038050A1 (en) * | 2000-10-11 | 2004-02-26 | Kinji Saijo | Film with multilayered metal and process for producing the same |
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| CN102319732A (en) * | 2011-09-07 | 2012-01-18 | 三明天尊不锈钢复合科技有限公司 | Vacuum milling method for metal compound plate |
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2013
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Patent Citations (4)
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| US20040038050A1 (en) * | 2000-10-11 | 2004-02-26 | Kinji Saijo | Film with multilayered metal and process for producing the same |
| CN1539634A (en) * | 2003-04-21 | 2004-10-27 | 上海祥生轴瓦材料有限公司 | Method for preparing composite material of noral/steel bimetal |
| CN101015835A (en) * | 2007-02-01 | 2007-08-15 | 唐谊光 | Production process of stainless compound steel plate |
| CN102319732A (en) * | 2011-09-07 | 2012-01-18 | 三明天尊不锈钢复合科技有限公司 | Vacuum milling method for metal compound plate |
Non-Patent Citations (1)
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| 王小红等: "铝-铜轧制复合工艺及界面结合机理", 《有色金属》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478476A (en) * | 2016-01-21 | 2016-04-13 | 太原科技大学 | Method for rolling metal composite plate strip |
| CN105478475A (en) * | 2016-01-21 | 2016-04-13 | 太原科技大学 | Method for rolling high-strength metal composite plate |
| CN105478476B (en) * | 2016-01-21 | 2018-07-03 | 太原科技大学 | A kind of method of rolled metal complex plate strip |
| CN108118262A (en) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | A kind of plastic mould clad steel plate and its manufacturing method |
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| Publication number | Publication date |
|---|---|
| CN104209323B (en) | 2016-10-05 |
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