CN2187499Y - Flat cold-rolled sheet with special shape and pattern on surface - Google Patents
Flat cold-rolled sheet with special shape and pattern on surface Download PDFInfo
- Publication number
- CN2187499Y CN2187499Y CN 93221265 CN93221265U CN2187499Y CN 2187499 Y CN2187499 Y CN 2187499Y CN 93221265 CN93221265 CN 93221265 CN 93221265 U CN93221265 U CN 93221265U CN 2187499 Y CN2187499 Y CN 2187499Y
- Authority
- CN
- China
- Prior art keywords
- little hole
- cold
- layer
- hole
- steel plate
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Metal Rolling (AREA)
Abstract
The utility model relates to a cold roll thin steel plate with special shapes and patterns on the surface, which belongs to a cold roll thin steel plate. The utility model is characterized in that the arithmetical mean (which is surface roughness Ra) of the figure height centerline of the thin steel plate is in a range of 0.3 to 2.0 micrometers. The micro shape which forms the surface roughness is of oval-shaped sealing type micro pit which has a platform on the bottom. A horseshoe-shaped groove is arranged on the circumference of the long side of the oval shape. The horseshoe-shaped groove is smooth. The utility model provides a cold roll thin steel plate with high steel shaping ratio, high productive efficiency, good surface, and good use performance.
Description
The utility model relates to a kind of cold-reduced sheet, and especially the surface has the cold-reduced sheet of special appearance and pattern.
Existing cold-reduced sheet identical with the technological process of production of the present utility model (as shown in Figure 1): the first step: hot-rolled sheet coil raw material; Second step: pickling; The 3rd step: cold rolling, cold rolling coil finished product; The 4th step: annealing heat treatment, annealing coil finished product; The 5th step: skin pass rolling; The 6th step: slitting bundling; The 7th step: finished product coiled sheet.
The utility model hot-rolled sheet coil raw material is hot rolling or the cold rolling thin steel roll plate of thickness between 1.5～3.5mm.
If raw material is a hot-rolled sheet coil, then cold rolling preceding the need be carried out pickling with the sulfuric acid or the hydrochloric acid of debita spissitudo to coil of strip, to remove its top layer iron scale.Deflection is about 40～95% under the stagnation pressure of cold rolling process.Existing processes generally adopts the emery wheel burnisher to come cold-rolled steel sheet.Owing to the circumferentially distribution and deep mixed of roll surface polishing scratch edge, so rolling back is in deep mixed strip roll mark and the scratch of plate face formation along rolling direction.This surface topography is difficult to reduce effectively the contact-making surface between coil of strip middle level and the layer, those sharp-pointed roll mark peaks are easily when layer contacts with layer on the surface, scratch the other side, metallic atom spreads mutually and the bonding phenomenon occurs when causing heat treatment, cause whole volume of coil of strip even whole stove to be scrapped, have a strong impact on cold rolling lumber recovery and production efficiency.
For this reason, the coil of strip of the utility model after to pickling at first used emery wheel burnisher cogging (the described laser roughening working roll cogging of also available back), second passage is rolling with the laser roughening working roll (having declared Chinese patent) that has special appearance and pattern, middle cold rolling pass can be with above-mentioned laser roughening roller, also available plain wheel burnisher, last cold rolling pass reuse above-mentioned laser rolling system and to prevent coil of strip the bonding phenomenon take place when next process is annealed heat treatment.Coil of strip after cold rolling can be used as finished product and directly dispatches from the factory, and also can change next procedure over to.
The heat treated coil of strip of annealing needs loose winding to recoil to reduce tension force in the volume.
Annealing temperature is carried out in annealing heat treatment in reducing atmosphere: 600 ℃～700 ℃, and temperature retention time: 5～10 hours.Coil of strip after the heat treatment can dispatch from the factory as finished product, but has the production board of forming requirements also must carry out skin pass rolling, to eliminate physics yield point and yield point elongation.
Existing flattening process adopts the shot-peening roller to carry out skin pass rolling, the surface of steel plate pattern of being produced is at random, deep mixed, the lubricant effect when being difficult to further improve drawing between plate and mould and the fluid ability of material especially are difficult to guarantee the finish coatings brightness after this plate punching press.
Skin pass rolling of the present utility model adopts the laser roughening working roll that has special appearance and pattern to carry out.The flattening process condition is: drafts, 0.5～3%; Tension force, 50～150MPa; Speed 50～300M/min.
Coil of strip after smooth need be cut edge or itemize according to customer requirements.Burr≤the 0.05mm of limit portion, the itemize width tolerance is: ± 0.1mm.
By aforementioned production method (having declared Chinese patent) performance indications of the present utility model be:
Tensile strength: 0
b〉=250MPa,
Yield strength: 0
0.2For: 100～300MPa,
Percentage elongation: δ 〉=20%,
Case hardness: HRV is: 70～200.
The purpose of this utility model provides a kind of lumber recovery and production efficiency height, surface and the good cold-reduced sheet of serviceability.
Concrete solution of the present utility model is: a kind of surface has the cold rolling thin steel of special appearance and pattern, it is characterized in that: the center line arithmetic mean of instantaneous value of this surface of thin steel sheet profile height (that is: surface roughness Ra) is in 0.3～2.0 micron this scope.Constituting the micro-of above-mentioned surface roughness is shaped as: the elliptical closed that the bottom has the platform hole that declines, at the periphery place of the long limit of ellipse trend one horseshoe-shaped groove is arranged, and horseshoe-shaped groove is slick and sly shape.The parameter of its cross dimensions satisfies following condition:
Little hole outer rim is respectively along the diameter of major axis and major axis: D1, D2;
Little hole inner edge is respectively along the diameter of major axis and minor axis: d1, d2;
The little hole of long axis direction distance between centers is: Sm1;
The little hole of short-axis direction distance between centers is: Sm2;
Little hole inner platform average diameter: do=(d1+d2)/2,50 μ m＜do＜150 μ m;
Average distance in the heart in little hole: Sm=(Sm1+Sm2)/2,50 μ m＜Sm＜300 μ m;
The little hole of the plate face degree of depth: h1＜5 μ m and, 1% of h1≤institute's steel rolling thickness;
Little hole central platform is to the height between the board plane: h1≤3 μ m;
The surface of steel plate flatness satisfies following relational expression:
General layout degree in the n-unit are.Wherein, 0.6＜n＜0.95;
Hole inner plane degree in the n1-unit are; Hole outerplanar degree in the n2-unit are.
Under the condition of Sm1/D1 〉=1 Sm2/D2 〉=1, have:
n＝n1＋n2＝1－0.785D1D2(1-k1k2)/(Sm1·Sm2），
In the formula: 0≤k1=d1/D1≤1,0≤k2=d2/D2≤1
The utility model forms little hole and the convex closure that evenly distributes and the flow harden effect is arranged owing to adopt laser roughening roller cold-reduced sheet on its surface.This cheats slightly is enclosed shape, and convex closure is slick and sly, and they can reduce the contact area of coil of strip middle level and interlayer effectively and keep good lubricating condition, thus the appearance of sticking volume phenomenon can prevent heat treatment effectively the time.
The utility model is owing to adopt the smooth annealing cold-rolled steel sheet of laser roughening roller, form little hole and the convex closure that evenly distributes and the flow harden effect is arranged on its surface, lubricating condition in the time of can improving punching press effectively between plate and mould, reduce wear, advantageous material flows, and can improve the plastic deformation ability of material.According to the plate face laser roughening pattern of user's instructions for use design, thereby the flatness that can improve the plate face to greatest extent improves the coating brightness, keeps the adhesive force of surface of steel plate to coated layer simultaneously.
Fig. 1 is technological process of production figure of the present utility model.
Fig. 2 is the little hole of a utility model sectional drawing.
Fig. 3 is that the utility model plate face hole shape and flatness are calculated schematic diagram.
Fig. 4 is the utility model shape appearance figure.
Fig. 5 be the utility model and shot-peening plate surface roughness curve ratio.
The utility model is described in further detail below in conjunction with accompanying drawing: a kind of surface has the cold rolling thin steel of special appearance and pattern, it is characterized in that: this surface of thin steel sheet profile height center line arithmetic mean of instantaneous value (that is: surface roughness Ra) is in 0.3～2.0 micron this scope, constituting the micro-of above-mentioned surface roughness is shaped as: the elliptical closed that the bottom has the platform hole that declines, there is a horseshoe-shaped groove at periphery place in the long limit of ellipse trend, and horseshoe-shaped groove is slick and sly shape.The parameter of its cross dimensions satisfies following condition:
Little hole outer rim is respectively along the diameter of major axis and minor axis: D1, D2;
Little hole inner edge is respectively along the diameter of major axis and minor axis: d1, d2;
The little hole of long axis direction distance between centers is: Sm1;
The little hole of short-axis direction distance between centers is: Sm2;
Average distance between hole, little center: do=(d1+d2)/2, do=100 μ m;
Average distance between little hole: Sm=(Sm1+Sm2)/2, Sm=150 μ m;
The little hole of the plate face degree of depth: h1=2 μ m and, 1% of h1≤institute's rolled steel plate thickness;
Little hole central platform is to the height between the board plane: t1=0.5 μ m.
The surface of steel plate flatness satisfies following relational expression:
General layout degree in the n-unit are.Wherein, n=0.7;
Hole inner plane degree in the n1-unit are; Hole outerplanar degree in the n2-unit are.
Under the condition of Sm1/D1 〉=1 Sm2/D2 〉=1, have:
n＝n1＋n2＝1－0.785D1D2（1－k1k2）／（Sm1·Sm2），
In the formula: 0≤k1=d1/D1≤1,0≤k2=d2/D2≤1.Wherein k1, k2 are the drafts coefficient relevant with dimple structure during with skin pass rolling.
For the surface topography that makes steel plate can guarantee steel plate good press formability is arranged, good coated layer surface brightness can be arranged again and, must seek the best fit of one group of surface topography parameter the adhesive force of coated layer.Fig. 3 has shown the relation between the form parameter of the little hole of surface of steel plate.D1, D2, d1, d2 and Sm1 among the figure, Sm2 represent little hole external profile diameter, inner edge diameter and the little hole distance between centers along transverse and short-axis direction respectively.Under the situation of Sm1/D1 〉=1 and Sm2/D2 〉=1, site area in the unit are:
Ap＝Ap1＋Ap2
＝At－1／4×3.14（D1D2－d1d2）
＝At－1／4×3.14×D1D2（1－k1k2）
In the formula, the gross area At=Sm1 * Sm2 of unit.
General layout degree n=n1+n2 in the unit are
＝Ap／At
＝1－0.785D1D2（1－k1k2）／（Sm1·Sm2）
In the formula: 0≤k1=d1/D1≤1,0≤k2=d2/D2≤1.Wherein, k1, k2 are the coefficient relevant with the work roll surface dimple structure with smooth drafts, and d1=d2=0 during K1=k2=0 shows: the no area of plane in little hole, surface of steel plate flatness minimum at this moment.D1=D1 during k1=k2=1, d2=D2, promptly the plate face does not have pit, steel plate flatness maximum.
Claims (4)
1, a kind of surface has the cold-reduced sheet of special appearance and pattern, it is characterized in that: the center line arithmetic mean of instantaneous value of this belt steel surface profile height (that is: surface roughness Ra) is in 0.3～2.0 micron this scope, constituting the micro-of above-mentioned surface roughness is shaped as: the elliptical closed that the bottom has the platform hole that declines, there is a horseshoe-shaped groove at periphery place in the long limit of ellipse trend, horseshoe-shaped groove is slick and sly shape, and the parameter of its cross dimensions satisfies following condition:
Little hole outer rim is respectively along the diameter of major axis and minor axis: D1, D2;
Little hole inner edge is respectively along the diameter of major axis and minor axis: d1, d2;
The little hole of long axis direction distance between centers is: Sm1;
The little hole of short-axis direction distance between centers is: Sm2;
Little hole inner platform average diameter: do=(d1+d2)/2,50 μ m＜do＜150 μ m;
Average distance: Sm=(Sm1+Sm2)/2,50 μ m＜Sm＜300 μ m in the heart in little hole;
The little hole of the plate face degree of depth: h1＜5 μ m and, 1% of h1≤institute's rolled steel plate thickness;
Little hole central platform is to the height between the board plane: t1≤3 μ m.
2, surface according to claim 1 has the cold-reduced sheet of special appearance and pattern, it is characterized in that: the surface of steel plate flatness satisfies following relational expression:
General layout degree in the n-unit are, wherein, 0.6＜n＜0.95;
Hole inner plane degree in the n1-unit are;
Hole outerplanar degree in the n2-unit are;
Under the condition of Sm1/D1 〉=1 Sm2/D2 〉=1, have:
n＝n1＋n2＝1-0.785D1D2(1-k1k2)/(Sm1·Sm2),
In the formula: 0≤K1=d1/D1≤1,0≤k2=d2/D2≤1.
In the formula: 0≤k1=d1/D1≤1,0≤k2=d2/D1≤1
3, the smooth working roll that is used to improve the cold-reduced sheet serviceability according to claim 1 and 2, it is characterized in that: described little hole and projection have a surfaces hardened layer; The hardened layer structure comprises: surface layer ultra fine crystal grain and cryptocrystalline martensite hardened layer, the heat affected area of the second layer and the matrix of internal layer.
4, the smooth working roll that is used to improve the cold-reduced sheet serviceability according to claim 3 is characterized in that: the thin brilliant and cryptocrystalline martensite hardened layer layer depth in top layer is: 10～30 μ m, internal layer are original matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221265 CN2187499Y (en) | 1993-08-12 | 1993-08-12 | Flat cold-rolled sheet with special shape and pattern on surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221265 CN2187499Y (en) | 1993-08-12 | 1993-08-12 | Flat cold-rolled sheet with special shape and pattern on surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2187499Y true CN2187499Y (en) | 1995-01-18 |
Family
ID=33800165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93221265 Expired - Fee Related CN2187499Y (en) | 1993-08-12 | 1993-08-12 | Flat cold-rolled sheet with special shape and pattern on surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2187499Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154867A (en) * | 2015-03-13 | 2015-12-16 | 刘瑜 | Method for coating aluminum coil with composite ceramic coating layer and galling device |
| CN107520261A (en) * | 2017-09-26 | 2017-12-29 | 德清县荣昌冷轧带钢有限公司 | A kind of novel all-in-one cold rolled strip steel production device |
| CN110039384A (en) * | 2019-05-17 | 2019-07-23 | 惠州市恒韵五金塑胶制品有限公司 | A kind of processing method of metal light-guiding pillar |
-
1993
- 1993-08-12 CN CN 93221265 patent/CN2187499Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154867A (en) * | 2015-03-13 | 2015-12-16 | 刘瑜 | Method for coating aluminum coil with composite ceramic coating layer and galling device |
| CN107520261A (en) * | 2017-09-26 | 2017-12-29 | 德清县荣昌冷轧带钢有限公司 | A kind of novel all-in-one cold rolled strip steel production device |
| CN110039384A (en) * | 2019-05-17 | 2019-07-23 | 惠州市恒韵五金塑胶制品有限公司 | A kind of processing method of metal light-guiding pillar |
| CN110039384B (en) * | 2019-05-17 | 2020-03-20 | 惠州市恒韵五金塑胶制品有限公司 | Processing method of metal light guide column |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102387873B (en) | Titanium plate and method for manufacturing titanium plates | |
| CN1072988C (en) | method for mfg. high gloss stainless steel band | |
| CN1319660C (en) | High-precision very-thin special-wide cold-rolled steel band and its working process | |
| CN2187499Y (en) | Flat cold-rolled sheet with special shape and pattern on surface | |
| KR101568525B1 (en) | Galvanized steel sheet having good formability and method for manufacturing the same | |
| US5324594A (en) | Galvannealed steel sheets exhibiting excellent press die sliding property | |
| JPS59225829A (en) | Manufacture of sheet with no spike | |
| CN1087846A (en) | The surface has the cold-reduced sheet and the production method thereof of special appearance and pattern | |
| CN106734324A (en) | The motor spring production and processing technology of ultra-wide thickness rate rectangular lines | |
| CN2183225Y (en) | Leveling roll for improving cold-rolled thin steel plate use-performance | |
| JP2000176513A (en) | Roll for temper rolling, method of temper rolling and temper rolled metal plate | |
| JPH079015A (en) | Rolling roll for press steel sheet and using method therefor | |
| CN105821360A (en) | Preparation method for improving strength and stretch plasticity of metallic titanium | |
| CN109092905B (en) | Flattening method for eliminating pattern wave-shaped defects | |
| JP2002361303A (en) | Stainless steel plate excellent in contamination resistance and corrosion resistance, and manufacturing method therefor | |
| CN2183226Y (en) | Cold-rolling roll for solving problem of cohering of thin steel plate in heat treatment of annealing | |
| JP2002004019A (en) | Galvanized steel sheet | |
| SU1084091A1 (en) | Method of machining the sheet surface | |
| JP4379115B2 (en) | Dull roll for cold rolling metal sheet and method for producing the same | |
| JP2685417B2 (en) | Titanium wire manufacturing method | |
| CN110038916A (en) | A kind of austenic stainless steel belt production method in the face 2BK | |
| JPH05192701A (en) | Metallic sheet excellent in galling resistance and rolling roll used for manufacturing same | |
| CN113403461B (en) | Manufacturing process and product of high-hardness hardware stainless steel | |
| JP3505036B2 (en) | Titanium sheet for building materials | |
| WO2018008151A1 (en) | Titanium sheet and production method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: CAS MECHANICS INSTITUTE TO: CHINA ACADEMY OF SCIENCES INSTITUTE OF MECHANICS QINHUANGDAO LONGTENG PRESCISION STRIP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 066004 Hebei Qinhuangdao Development Zone Patentee after: Institute of mechanics, Chinese Academy of Sciences Patentee after: Qinhuangdao Longteng precision band steel Co., Ltd. Patentee before: Institute of mechanics, Chinese Academy of Sciences |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |