CN104032211A - Novel automotive protection plate - Google Patents
Novel automotive protection plate Download PDFInfo
- Publication number
- CN104032211A CN104032211A CN201410292177.3A CN201410292177A CN104032211A CN 104032211 A CN104032211 A CN 104032211A CN 201410292177 A CN201410292177 A CN 201410292177A CN 104032211 A CN104032211 A CN 104032211A
- Authority
- CN
- China
- Prior art keywords
- protective shield
- novel automobile
- protection plate
- iron
- content
- 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.)
- Granted
Links
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000013000 roll bending Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000011572 manganese Substances 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention relates to a novel automotive protection plate which is characterized by comprising the following components in proportion: 3% to 5% of C, 5% to 8% of Si, 2% to 7% of Mn, less than or equal to 1% of P, less than or equal to 1% of S and the balance of Fe and a small quantity of residual impurities. Compared with the prior art, the technical scheme provided by the invention has the following advantages: 1) the impact resistance of the protection plate is enhanced, i.e., the maximum impact force of the protection plate can reach 5kg/cm, so that the protection plate cannot be cracked even a hammer below 2kg is utilized to compel the protection plate to fall off from two meters; 2) the weather resistance of the protection plate is improved, i.e., an ultraviolet-proof co-extrusion layer is arranged on the surface of the protection plate; 3) the heat resistance and cold resistance of the protection plate are improved.
Description
Technical field
The present invention relates to a kind of protective shield, particularly a kind of novel automobile protective shield, belongs to technical field of automobile components.
Background technology
Along with the progress with rapid changepl. never-ending changes and improvements of scientific and technological development and industry, China Automobile Industry is more and more rapider, the development of automotive engineering requires more and more higher to the structure properties of component, automobile-used protective shield is one of major critical component affecting vehicle safety travel, is also the important factor that affects vehicle performance simultaneously.In prior art, protective shield is various, but all has following problem, 1) poor impact resistance; 1) poor heat resistance, winter hardiness are poor, can not environmental facies to severe condition under life-time service, 3) weathering resistance is poor; 4) flame resistivity is poor, and in the time that spontaneous combustion appears in vehicle or cause vehicle to occur case of fire due to other extraneous reasons, the flame resistivity of Vehicle protector plate is poor.Based on the problems referred to above, those skilled in the art is constantly attempting change always, but effect is undesirable, and therefore, a kind of new technical scheme of exigence addresses the above problem.
Summary of the invention
The present invention, just for the technical problem existing in prior art, provides a kind of novel automobile protective shield and working method thereof, and this protective shield has overcome above-mentioned technological deficiency, is convenient to promote the use of on a large scale.
To achieve these goals, the technical solution used in the present invention is as follows, and a kind of novel automobile protective shield, is characterized in that, composition and the content of described protective shield are as follows, C 3%-5%, Si 5%-8%, Mn 2%-7%, P≤1%, S≤1%, surplus is iron and remaining trace impurity.
As a modification of the present invention,, composition and the content of described protective shield are as follows, C 4%-4.5%, Si 6%-7%, Mn 4%-6%, P≤0.5%, S≤0.5%, surplus is iron and remaining trace impurity.
As a modification of the present invention, said method comprising the steps of 1) material prepares and confirms, confirms that sending into process furnace after errorless heats, 2) preparation roll bending is left on machine; 3) on, wind off volume; 4) leader, smoothing, 5) rinsing 6) waste material collects, and 7) discharging, upset, 8) inspection after construction packaging.
As a modification of the present invention, in described step 2, the linear velocity of machine is≤15mm/min.
As a modification of the present invention, temperature in described step 1 in process furnace is 800 DEG C～1150 DEG C, protective shield come out of the stove after at 1000 DEG C of above large edger roll dephosphorize by high pressure water, through the rolling of roughing unit, enter De-scaling box before finishing mill and remove the iron scale producing in rough rolling process, then finishing train rolling, carry out laminar flow cooling after, be rolled into coil of strip by reeling machine, controlled rolling temperature.
As a modification of the present invention, in described step 1, finishing temperature is set as 700 DEG C～800 DEG C, 500 DEG C～580 DEG C of coiling temperatures.
As a modification of the present invention, composition and the content of described protective shield are as follows, C 4.5%, and Si 7%, Mn 6%, P0.5%, S0.5%, surplus is iron and remaining trace impurity.
The common element adopting in technique scheme, does not particularly add precious alloy element, only improves intensity by suitable Si, reduce Mn content, solve difficult the removing and surface quality problems of the high iron scale causing of Si, make protective shield there is high strong plasticity, high surface quality.
In order to reduce production costs, in the technical program, do not add the alloying element such as Nb, Ti, but adopt lower alloying element Mn, and improve intensity by appropriate more cheap silicon addition, by the reasonable coordination of related production technique, solve Si and improve the scale on surface problem causing, the strength and toughness and the surface quality that make product, all meet existing standard-required, in technique scheme, why arranges like this, specifically the reasons are as follows
C: can improve carbon content, favourable to improving room temperature strength and the medium temperature intensity of steel, but plasticity, toughness, formability, weldability to steel is all unfavorable, therefore carbon content control is unsuitable too high, the present invention selects C 3%-5%.
Si: can there is purify hot metal, reductor, Si has very strong solution strengthening effect after being dissolved in ferrite, and every increase 0.15%Si in carbon steel can make the tensile strength of hot-rolled steel improve 8～9MPa, and yield strength improves 5～6MPa.Content in the technical program is Si 5%-8%.
Mn: improve manganese content in steel, can expand γ district, reduce γ → α transition temperature, expand rolling scope, the chance of growing up of ferrite crystal grain is greatly reduced, thereby promoted grain refining, increase the obdurability of steel, but manganese content is high, the cost of the corresponding increase steel of meeting, also can increase carbon equivalent, be unfavorable for welding, the content in the technical program is Mn 2%-7%.
S: sulphur forms sulfide inclusion in steel, makes its ductility and toughness drop.When steel rolling, because MnS is mingled with along with rolling direction is extended, the anisotropy of steel is increased the weight of, when serious, causing Laminated steel, the content in the technical program is P≤1%,
P: the high cold shortness that increases steel of phosphorus, make the brittle transition temperature of steel increase, the impelling strength of steel is significantly declined, the content in the technical program is S≤1%.
With respect to prior art, the advantage of the technical program is as follows: 1) shock-resistance strengthens, and the surging force maximum of protective shield can reach 5kg/cm, with also flawless under the following two meters of pendants of 2kg hammer; 2) weathering resistance improves, and there is the coextruded layer of antiultraviolet on surface, can prevent the tired flavescence of resin that solar ultraviolet causes, 3) flame resistivity improves, the not spontaneous combustion of protective shield itself described in this technical scheme the self-extinguishing having.Meet the ROHS of European Union instruction and strict UL safety standard, UL94 fire-protection rating reaches V0 level, V2 level, HB level; 4) thermotolerance, winter hardiness improve, and DEG C to+110 DEG C of temperature ranges, can not cause the quality badnesses such as distortion in Celsius-10, in the time of 105 DEG C, do not soften, and its mechanics in rugged environment, mechanical propertys etc. have no significant change; 5) flexible: can adopt clod wash mode at building-site according to schema, be mounted to arch, semicircle top and window.
Embodiment
In order to deepen the understanding of the present invention and understanding, below in conjunction with embodiment, the invention will be further described and introduction.
embodiment 1: a kind of novel automobile protective shield, composition and the content of described protective shield are as follows, C 3%-5%, Si 5%-8%, Mn 2%-7%, P≤1%, S≤1%, surplus is iron and remaining trace impurity.
As a modification of the present invention, composition and the content of described protective shield are as follows, C 4%-4.5%, and Si 6%-7%, Mn 4%-6%, P≤0.5%, S≤0.5%, surplus is iron and remaining trace impurity;
As a modification of the present invention, composition and the content of described protective shield are as follows, C 4.5%, and Si 7%, Mn 6%, P0.5%, S0.5%, surplus is iron and remaining trace impurity.
embodiment 2: a kind of working method of novel automobile protective shield, said method comprising the steps of 1) material prepares and confirms, confirms that sending into process furnace after errorless heats, 2) preparation roll bending is left on machine; 3) on, wind off volume; 4) leader, smoothing, 5) rinsing 6) waste material collects, and 7) discharging, upset, 8) inspection after construction packaging; In described step 2, the linear velocity of machine is≤15mm/min; Temperature in described step 1 in process furnace is 800 DEG C～1150 DEG C, protective shield come out of the stove after at 1000 DEG C of above large edger roll dephosphorize by high pressure water, through the rolling of roughing unit, before entering finishing mill, De-scaling box is removed the iron scale producing in rough rolling process, then finishing train rolling, carry out laminar flow cooling after, be rolled into coil of strip by reeling machine, controlled rolling temperature; In described step 1, finishing temperature is set as 700 DEG C～800 DEG C, 500 DEG C～580 DEG C of coiling temperatures.
It should be noted that above-described embodiment, be not used for limiting protection scope of the present invention, the equivalents of having done on the basis of technique scheme or substitute and all fall into the scope that the claims in the present invention are protected.
Claims (7)
1. a novel automobile protective shield, is characterized in that, composition and the content of described protective shield are as follows, C 3%-5%, and Si 5%-8%, Mn 2%-7%, P≤1%, S≤1%, surplus is iron and remaining trace impurity.
2. novel automobile protective shield according to claim 1, is characterized in that, composition and the content of described protective shield are as follows, C 4%-4.5%, and Si 6%-7%, Mn 4%-6%, P≤0.5%, S≤0.5%, surplus is iron and remaining trace impurity.
3. novel automobile protective shield according to claim 1 and 2, is characterized in that, said method comprising the steps of 1) material prepares and confirms, confirms that sending into process furnace after errorless heats, 2) preparation roll bending is left on machine; 3) on, wind off volume; 4) leader, smoothing, 5) rinsing 6) waste material collects, and 7) discharging, upset, 8) inspection after construction packaging.
4. novel automobile protective shield according to claim 3, is characterized in that, in described step 2, the linear velocity of machine is≤15mm/min.
5. novel automobile protective shield according to claim 4, it is characterized in that, temperature in described step 1 in process furnace is 800 DEG C～1150 DEG C, protective shield come out of the stove after at 1000 DEG C of above large edger roll dephosphorize by high pressure water, through the rolling of roughing unit, enter finishing mill before De-scaling box remove the iron scale producing in rough rolling process, then finishing train rolling, carry out laminar flow cooling after, be rolled into coil of strip by reeling machine, controlled rolling temperature.
6. novel automobile protective shield according to claim 5, is characterized in that, in described step 1, finishing temperature is set as 700 DEG C～800 DEG C, 500 DEG C～580 DEG C of coiling temperatures.
7. novel automobile protective shield according to claim 5, is characterized in that, composition and the content of described protective shield are as follows, C 4.5%, and Si 7%, Mn 6%, P0.5%, S0.5%, surplus is iron and remaining trace impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292177.3A CN104032211B (en) | 2014-06-26 | 2014-06-26 | A kind of automobile-used protective plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292177.3A CN104032211B (en) | 2014-06-26 | 2014-06-26 | A kind of automobile-used protective plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104032211A true CN104032211A (en) | 2014-09-10 |
| CN104032211B CN104032211B (en) | 2016-11-23 |
Family
ID=51463202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410292177.3A Active CN104032211B (en) | 2014-06-26 | 2014-06-26 | A kind of automobile-used protective plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104032211B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509012A (en) * | 2019-08-30 | 2019-11-29 | 新程汽车工业有限公司 | The processing technology of new automobile protective plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1861568A (en) * | 1929-05-10 | 1932-06-07 | Frank S Hodson | Silicon iron castings and method of making the same |
| CN101724778A (en) * | 2008-10-27 | 2010-06-09 | 上海梅山钢铁股份有限公司 | Steel for automobile beam and with yield strength more than 500 MPa and manufacturing method thereof |
-
2014
- 2014-06-26 CN CN201410292177.3A patent/CN104032211B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1861568A (en) * | 1929-05-10 | 1932-06-07 | Frank S Hodson | Silicon iron castings and method of making the same |
| CN101724778A (en) * | 2008-10-27 | 2010-06-09 | 上海梅山钢铁股份有限公司 | Steel for automobile beam and with yield strength more than 500 MPa and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509012A (en) * | 2019-08-30 | 2019-11-29 | 新程汽车工业有限公司 | The processing technology of new automobile protective plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104032211B (en) | 2016-11-23 |
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| 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 | ||
| CP03 | Change of name, title or address |
Address after: No.33 Zhongzhou Road, Jingjiang Economic Development Zone, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: Xincheng Automobile Industry Co., Ltd Address before: Jingjiang City Zhongzhou Road 214500 Jiangsu city of Taizhou province No. 33 Patentee before: JINJIANG XINCHENG VEHICLE PARTS Co.,Ltd. |
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| CP03 | Change of name, title or address |