CN102699019A

CN102699019A - Partially-etched precision stainless steel strip used in communication industry as well as production process and application thereof

Info

Publication number: CN102699019A
Application number: CN2012101219591A
Authority: CN
Inventors: 濮晓芳
Original assignee: YONGXIN PRECISION MATERIAL (WUXI) CO Ltd
Current assignee: YONGXIN PRECISION MATERIAL (WUXI) CO Ltd
Priority date: 2012-04-24
Filing date: 2012-04-24
Publication date: 2012-10-03
Anticipated expiration: 2032-04-24
Also published as: CN102699019B

Abstract

The invention relates to a production method of a partially-etched precision stainless steel strip, which comprises the following steps: semi-finish rolling; degreasing, washing and drying; solution heat treatment; tension rewinding; finish rolling; degreasing, cleaning and drying; micro extending, straightening and bundling. Due to the implementation of the technical scheme of the production process, the product has high thickness tolerance precision, low fluctuation, smooth surface, uniform surface roughness and no surface color difference. The plate is flat, has stable mechanical performance, is not easy to deform after being partially etched and can met the needs of producing the intelligent mobile phones in the communication industry.

Description

A kind of communications industry is with etching partially precise stainless steel strip, its production technology and uses thereof

Technical field

The present invention relates to the precise stainless steel strip field, particularly, the present invention relates to a kind of precise stainless steel strip, its production technology and uses thereof of etching partially.

Background technology

The band steel is common a kind of metallic article.Precise stainless steel strip is the very high steel band kind of a kind of technology content, and it can not only have accurate dimensions, and can guarantee desired mechanical performance index, and the thickness of its steel band finished product can be as thin as 0.02mm, and width can reach 1250mm; Hardness (Vickers) can be controlled in 135～600 scopes.

Precise stainless steel strip (referring generally to thickness less than the product below the 0.5mm) is widely used in the industry that information technology, computer, auto parts and components, medical treatment, metal hose, semiconductor etc. have specific demand, is a kind of high value-added product.Therefore, the production of carrying out precise stainless steel strip has very wide prospect.

The communications industry in use often need be through etching partially processing with precise stainless steel strip.Etching (etching) is that material is used chemical reaction or physical shock effect and the technology that removes.Etch partially and handle the distortion that tends to cause precise stainless steel strip, this is in the precise stainless steel strip production process, to need a difficult problem that overcomes badly.

It is rolling that at present the communications industry is used to produce the most of multi-roll mill that adopts of precise stainless steel strip of various mobile phones, bright annealing heat treatment, and adopt auxiliary equipment to carry out straightening and improve plate shape glacing flatness.

CN 101869911A discloses a kind of production technology that is used for the producing high-grade Cellphone Accessories with precise stainless steel strip; This technology comprises: rewinding for the first time, cold rolling, spray degreasing, heat water-spraying, hot-air seasoning, solid solution, rewinding for the second time, cold rolling, spray degreasing, heat water-spraying, operations such as hot-air seasoning, stretch-bending straightening and cutting for the second time for the second time for the second time for the second time for the first time for the first time for the first time for the first time; Be suitable for suitability for industrialized production; Satisfy the high-quality requirement of electron trade, resulting stainless steel band is highly suitable on the high-grade mobile phone and uses.

It is cold rolling that CN 101716595A adopts 20 roller sendzimir mills and unique rolling mill practice to carry out, and through technologies such as degreasing, solution treatment, stretch-bending straightenings, produces a kind of accurate stainless steel band applied in electronic industry.Its product thickness tolerance variations is little, stable performance, surface color and roughness uniformity no color differnece, and plate shape good straightness degree is suitable for suitability for industrialized production, satisfies the high-quality requirement of electron trade.

More than precise stainless steel strip easy gross distortions when etching partially punching press of producing of two kinds of methods, cause part to be scrapped, can not meet the requirement of the production of accurate stainless steel parts fully.

Summary of the invention

To the deficiency of prior art, it is a kind of in the production technology that etches partially the on-deformable precise stainless steel strip in back that one of the object of the invention is to provide, and may further comprise the steps:

(1) half finish rolling system: the soft attitude cold-rolling stainless steel stock roll to 2B is surperficial, thickness is 0.50～1.80mm is carried out half finish rolling system, and the stainless steel stock roll is rolled down to 0.128～0.80mm thickness through 2 above passages; The first passage backward pull is 10～40kg/mm ², the first passage forward pull is 15～45kg/mm ², the forward and backward tension force of each passage independently is respectively 15～70kg/mm by increasing progressively principle by passage afterwards ²

(2) degreaser drying: the stainless steel band that step (1) is obtained carries out uncoiling, degreasing, drying;

(3) solution heat treatment: the stainless-steel roll that step (2) is obtained carries out solution heat treatment at 900～1300 ℃;

(4) rewinding: the stainless steel band that step (3) is obtained carries out rewinding;

(5) finish rolling system: the stainless steel band that step (4) obtains carry out finish rolling system, and the stainless steel band of 0.128～0.80mm thickness is rolled down to 0.10～0.60mm through 2 above passages; All the other passage backward pulls that remove final pass are 10～30kg/mm ², forward pull is 12～33kg/mm ²Taking small tension receiving coil calendering technology, front and back tension force before and after the final pass independently is 5～25kg/mm ²

(6) degreaser drying: the stainless steel band that step (5) is obtained carries out degreasing, drying;

(7) little extension stretch-bending straightening: adopt permanent extension mode to carry out stretch-bending straightening, percentage elongation is below 0.20%, then bundling.

Preferably, soft attitude cold-rolling stainless steel stock roll thickness is 0.55～1.70mm described in the step (1), further is preferably 0.58～1.60mm, is preferably 0.60～1.50mm especially.

Preferably; Soft attitude cold-rolling stainless steel stock roll width is below the 1300mm described in the step (1); For example: 10mm, 50mm, 100mm, 200mm, 300mm, 500mm, 600mm, 800mm, 900mm, 1000mm, 1100mm, 1200mm, 1250mm, 1280mm, 1290mm, 1295mm, 1298mm, 1299mm etc.; Further be preferably 500～1300mm, be preferably 1000～1250mm especially.

Preferably, the middle material of choosing said soft attitude cold-rolling stainless steel stock roll in the step (1) involves in row half finish rolling system; Material volume is meant in the middle of said, and by final requirement width sub-cut material volume, material volume in the middle of choosing, for example: if will expect to roll up sub-cut successively is three sections of A, B, C, chooses the B material and rolls up, as shown in Figure 2.

Preferably, half finish rolling system described in the step (1) adopts Sendzimir 20 roller mills.

Preferably, working roll hardness is HRC55～68 described in the step (1), further is preferably HRC58～65, is preferably HRC60～62 especially.

Preferably, working roll roll surface roughness described in the step (1) is below the Ra0.80 μ m, further is preferably Ra0.05～0.70 μ m, is preferably Ra0.10～0.60 μ m especially.

Preferably, half finish rolling system described in the step (1) adopts the mineral matter ROLLING OIL to carry out cooling and lubricating; Said mineral matter ROLLING OIL refers to the ROLLING OIL that from oil, extracts through the physics distillating method.

Preferably, the ROLLING OIL temperature is 10～70 ℃ during half finish rolling system described in the step (1), further is preferably 15～60 ℃, more preferably 20～55 ℃, is preferably 25～50 ℃ especially.

Preferably, half finish rolling system road number of times is more than 3 described in the step (1), for example 4,5,6,10,15 etc.

Preferably, described in the step (1) after the half finish rolling system thickness of stainless-steel roll be 0.25～0.70mm, further be preferably 0.30～0.65mm, be preferably 0.37～0.62mm especially.

Preferably, the first passage backward pull of half finish rolling system described in the step (1) is 15～35kg/mm ², be preferably 20～28kg/mm especially ²

Preferably, the first passage forward pull of half finish rolling system described in the step (1) is 20～35kg/mm ², be preferably 23～31kg/mm especially ²

Preferably, the first passage mill speed of half finish rolling system described in the step (1) is 60～130 meters/minute, further is preferably 70～110 meters/minute, is preferably 80～100 meters/minute especially.

Preferably, the forward and backward tension force of each passage that second passage of half finish rolling system described in the step (1) rises independently is respectively 25～60kg/mm by increasing progressively principle by passage ², be preferably 30～50kg/mm especially ²

Preferably, each pass speed that second passage of half finish rolling system rises described in the step (1) independently is 110～320 meters/minute, further is preferably 130～300 meters/minute, is preferably 150～280 meters/minute especially.

Preferably, the protection of the whole volume of the steel band of last passage of half finish rolling system described in the step (1) lining paper is to avoid dampening steel strip surface.

Preferably, degreasing described in the step (2) adds hairbrush through spray and cleans and to carry out.

Preferably, degreasing is carried out in the degreasing case described in the step (2).

Preferably, used degreasing agent is an alkaline defatting agent in the step (2), and the S5160 concentration that is preferably the production of Shanghai Kai Miteer chemicals Co., Ltd especially is the aqueous solution of 9g/L～11g/L.

Preferably, in the step (2) during spray degreasing solution temperature be 35～95 ℃, further be preferably 50～90 ℃, be preferably 60～80 ℃ especially.

Preferably, clean after the degreasing described in the step (2); Preferably, said cleaning is a spray Cleaning for High Capacity; Preferably, said spray Cleaning for High Capacity adopts hot water to carry out; Preferred said hot water temperature is 25～90 ℃; For example: 26 ℃, 27 ℃, 30 ℃, 32 ℃, 38 ℃, 40 ℃, 50 ℃, 55 ℃, 65 ℃, 75 ℃, 85 ℃, 88 ℃, 89 ℃, 89.5 ℃ etc.; Further be preferably 35～70 ℃, be preferably 45～60 ℃ especially.

Preferably, drying is a hot-air seasoning described in the step (2); Preferably; Said hot blast temperature is 80 ℃～200 ℃; For example: 81 ℃, 82 ℃, 83 ℃, 89 ℃, 91 ℃, 99 ℃, 101 ℃, 119 ℃, 149 ℃, 150 ℃, 160 ℃, 180 ℃, 190 ℃, 195 ℃, 198 ℃, 199 ℃ etc.; Further be preferably 90～150 ℃, be preferably 100～120 ℃ especially.

Preferably; Degreasing speed is below 25 meters/minute described in the step (2); For example: 0.01 meter/minute, 0.1 meter/minute, 0.5 meter/minute, 1 meter/minute, 6 meters/minute, 10 meters/minute, 18 meters/minute, 23 meters/minute, 24 meters/minute, 24.8 meters/minute, 24.9 meters/grade; Further be preferably 3～20 meters/minute, be preferably 5～15 meters/minute especially.

Preferably; Cleaning speed is below 25 meters/minute described in the step (2); For example: 0.01 meter/minute, 0.1 meter/minute, 0.5 meter/minute, 1 meter/minute, 6 meters/minute, 10 meters/minute, 18 meters/minute, 23 meters/minute, 24 meters/minute, 24.8 meters/minute, 24.9 meters/grade; Further be preferably 3～20 meters/minute, be preferably 5～15 meters/minute especially.

Preferably, solution heat treatment temperature is 1000～1200 ℃ described in the step (3), is preferably 1100～1150 ℃ especially.

Preferably, solution heat treatment adopts horizontal continuous bright annealing furnace to carry out described in the step (3).

Preferably, solution heat treatment is carried out under reproducibility and/or inert gas shielding described in the step (3), and steel band is protected, and guarantees the steel strip surface non-oxidizing bright after the heat treatment, and especially preferably protecting gas is that volume content is 25%N ₂And 75%H ₂The decomposed ammonia body; Said inert gas is a kind or at least 2 kinds combination in nitrogen, helium, argon gas, krypton gas, the xenon.

Preferably; The annealing speed of solution heat treatment is preferably below 25 meters/minute described in the step (3); For example: 0.1 meter/minute, 0.2 meter/minute, 0.5 meter/minute, 1 meter/minute, 2 meters/minute, 4 meters/minute, 8 meters/minute, 10 meters/minute, 14 meters/minute, 16 meters/minute, 18 meters/minute, 22 meters/minute, 24 meters/minute, 24.8 meters/minute, 24.9 meters/minute etc.; Further be preferably 3～20 meters/minute, be preferably 5～15 meters/minute especially.

Preferably, during solution heat treatment rolling described in the step (3) whole volume lining paper in case steel strip surface dampen.

Preferably, rewinding tension force is 100～3300kg described in the step (4), further is preferably 220～3100kg, is preferably 300～3000kg especially.

Preferably; Rewinding speed is below 200 meters/minute described in the step (4); For example: 0.1 meter/minute, 0.2 meter/minute, 0.3 meter/minute, 1 meter/minute, 4 meters/minute, 6 meters/minute, 9 meters/minute, 20 meters/minute, 50 meters/minute, 80 meters/minute, 100 meters/minute, 130 meters/minute, 180 meters/minute, 195 meters/minute, 198 meters/minute, 199 meters/minute, 199.8 meters/minute, 199.9 meters/minute etc.; Further be preferably 5～150 meters/minute, be preferably 10～120 meters/minute especially.

Preferably, described in the step (5) after the finish rolling system thickness of stainless-steel roll be 0.20～0.60mm, further be preferably 0.25～0.55mm, be preferably 0.30～0.50mm especially.

Preferably, finish rolling system described in the step (5) is 13～25kg/mm except that the backward pull of other passage of final pass ², be preferably 15～20kg/mm especially ²

Preferably, finish rolling system described in the step (5) is 15～25kg/mm except that the forward pull of other passage of final pass ², be preferably 18～23kg/mm especially ²

Preferably, tension force independently is 8～20kg/mm before and after the finish rolling system final pass described in the step (5) ², be preferably 10～18kg/mm especially ²

Preferably, finish rolling system described in the step (5) adopts Sendzimir 20 roller mills.

Preferably, working roll hardness is HRC55～68 described in the step (5), further is preferably HRC58～65, is preferably HRC60～62 especially.

Preferably, finish rolling system described in the step (5) adopts the mineral matter ROLLING OIL to carry out cooling and lubricating.

Preferably, the ROLLING OIL temperature during finish rolling system described in the step (5) is 10～70 ℃, further is preferably 15～60 ℃, more preferably 20～55 ℃, is preferably 25～50 ℃ especially.

Preferably, finish rolling system road number of times is more than 3 described in the step (5), is preferably 3 especially.

Preferably, the working roll roll surface roughness of removing other passage of final pass in the step (5) is below the Ra0.70 μ m, further is preferably Ra0.05～0.60 μ m, is preferably Ra0.1～0.5 μ m especially.

Preferably, the plate shape control roll of each passage awl length independently is 180～250mm in the step (5), further is preferably 200～230mm, is preferably 220mm especially.

Preferably, the tapering that removes other passage of final pass in the step (5) is 1/750～1/950, further is preferably 1/800～1/900, is preferably 1/850 especially.

Preferably, the rolling mill speed that removes other passage of final pass in the step (5) is 50～180m/ minute, further is preferably 80～160m/ minute, is preferably 90～150m/ minute especially.

Preferably, the roll roll surface roughness of final pass is Ra0.1～0.8 μ m in the step (5), further is preferably Ra0.2～0.6 μ m, is preferably Ra0.3～0.5 μ m especially.

Preferably, the percentage pass reduction of final pass is 1%～8% in the step (5), further is preferably 3%～6%, is preferably 4%～5% especially.

Preferably; The rolling mill speed of final pass is below 180m/ minute in the step (5); For example 179m/ minute, 178m/ minute, 177m/ minute, 170m/ minute, 151m/ minute, 149m/ minute, 120m/ minute, 100m/ minute, 80m/ minute, 60m/ minute, 40m/ minute, 20m/ minute, 10m/ minute, 5m/ minute, 2m/ minute, 1m/ minute, 0.1m/ minute etc.; Further be preferably below 160m/ minute, be preferably especially below 150m/ minute.

Preferably, head steel band lining paper 20～200 circles during final pass in the step (5), further preferred 40～120 circles, preferred especially 50～100 circles.

Preferably, afterbody steel band lining paper 20～200 circles during final pass in the step (5), further preferred 40～120 circles, preferred especially 50～100 circles.

Preferably, degreasing is carried out through the spray degreasing agent described in the step (6).

Preferably, used degreasing agent is an alkaline defatting agent in the step (6), and the S5160 that is preferably the production of Shanghai Kai Miteer chemicals Co., Ltd especially contains the aqueous solution of 9g/L～11g/L degreasing agent.

Preferably, in the step (6) during spray degreasing solution temperature be 35～95 ℃, further be preferably 50～90 ℃, be preferably 60～85 ℃ especially.

Preferably, clean after the degreasing described in the step (6); Preferably, said cleaning is the cold water spray; Said cold water temperature is 0～35 ℃, is preferably 5～25 ℃ especially.

Preferably, dry described in the step (6) for drying; Preferably; Said bake out temperature is 100～500 ℃; For example: 101 ℃, 102 ℃, 103 ℃, 149 ℃, 151 ℃, 180 ℃, 210 ℃, 250 ℃, 310 ℃, 350 ℃, 390 ℃, 410 ℃, 450 ℃, 490 ℃, 495 ℃, 498 ℃, 499 ℃, 499.9 ℃, etc.; Further be preferably 150～400 ℃, be preferably 200～300 ℃ especially.

Preferably; Rate of drying is below 25 meters/minute described in the step (6); For example: 0.01 meter/minute, 0.1 meter/minute, 0.5 meter/minute, 1 meter/minute, 6 meters/minute, 10 meters/minute, 18 meters/minute, 23 meters/minute, 24 meters/minute, 24.8 meters/minute, 24.9 meters/grade; Further be preferably 3～15 meters/minute, be preferably 5～10 meters/minute especially.

Preferably, head and/or afterbody steel band lining paper during rolling in the step (6).

Percentage elongation described in the step (7) typical case but nonrestrictive example are: 0.199%, 0.198%, 0.197%, 0.195%, 0.19%, 0.18%, 0.16%, 0.14%, 0.12%, 0.11%, 0.09%, 0.05%, 0.02%, 0.01%, 0.005%, 0.002%, 0.001% etc.; Be preferably below 0.15%, be preferably below 0.10% especially.

Bundling described in the step (7) is 2 times of bundlings according to the requirement width dimensions.

Preferably, the production technology of precise stainless steel strip according to the invention may further comprise the steps:

(1 ') half finish rolling system: 2B surface, thickness be 0.60～1.50mm, width be below the 1219mm soft attitude cold-rolling stainless steel stock roll in the middle of material involve in row half finish rolling system; Selecting working roll is that hardness is HRC60～62; The roll surface roughness is controlled at Ra0.10～0.60 μ m, adopts the mineral matter ROLLING OIL to carry out cooling and lubricating when rolling; Oily temperature control when rolling is at 25～50 ℃; 0.50 the stainless steel stock roll that～1.80mm is thick is rolled down to 0.128～0.75mm thickness through 2 above passages; The first passage backward pull is controlled at 20～28kg/mm ², forward pull is controlled at 23～31kg mm ², mill speed is controlled at 80～100 meters/minute, and the forward and backward tension force of each passage is 30～50kg/mm by increasing progressively principle by passage afterwards ², each pass speed is 150～280 meters/minute, the whole rollback request lining paper of last passage avoids dampening steel strip surface with this;

(2 ') cleaning by degreasing oven dry: the stainless steel band to through more than half finish rolling systems carries out uncoiling, through the degreasing case that is added with degreasing agent spray, the hairbrush cleaning and degreasing; It is the 9g/L-11g/L degreaser that S5160 that said stainless steel degreasing agent employing Shanghai Kai Miteer chemicals Co., Ltd produces and water are deployed into concentration, and the solution temperature during spray degreasing is controlled at 60～80 ℃; Behind spray degreasing, clean through the heat water-spraying, the hot water temperature is controlled at 45～60 ℃ again, and the steel band after hot water cleans is handled through hot-air seasoning again, and hot blast temperature is 100～120 ℃; The speed of steel band cleaning by degreasing generally is controlled at 5～15 meters/minute;

(3 ') solution heat treatment: the cold-rolled steel coils after more than half finish rolling, degreasing, cleaning, oven dry takes the horizontal continuous bright annealing furnace of gas shield to carry out solution heat treatment; Heat treatment temperature is controlled at 1100～1150 ℃; 5～15 meters/minute of annealing speed, adopting protective atmosphere is that volume content is 25%N ₂And 75%H ₂The decomposed ammonia body, steel band is protected, guarantee the steel strip surface non-oxidizing bright after the heat treatment, require whole volume lining paper during rolling in order to avoid steel strip surface is dampened;

(4 ') tension force rewinding: to carrying out the tension force rewinding through the steel band after the solution heat treatment, Tension Control is at 300～3000kg, and speed controlling is at 10～120 meters/minute;

(5 ') finish rolling system: the cold-rolled strip that recovers plasticity through solution heat treatment carries out pressure-sizing for the second time and prolongs; Selecting working roll hardness is HRC60～62, adopts the mineral matter ROLLING OIL to carry out cooling and lubricating when rolling, and ROLLING OIL is controlled at 25～50 ℃; Take three passage process programs: the steel band through solution treatment that 0.128～0.75mm is thick is calendered to 0.3～0.50mm finished product thickness; First and second passage working roll roll surface roughness Ra0.1～0.5 μ m, the long 220mm of plate shape control roll awl, tapering 1/850; Backward pull is controlled at 15～20kg/mm ², forward pull is controlled at 18～23kg/mm ², rolling mill speed was controlled at 90～150m/ minute, and the 3rd passage roll roll surface roughness is Ra0.3～0.5 μ m; The long 220mm of plate shape control roll awl, tapering 1/850, and percentage pass reduction is controlled in 4%～5% scope; It is 10～18kg/mm that small tension receiving coil calendering technology, Tension Control are taked in front and back ², speed controlling is in 150 meters/minute, and steel band lining paper 50～100 encloses end to end;

(6 ') cleaning by degreasing surface: the cleaning by degreasing oven dry is carried out on its surface according to this type of requirement of products; Steel band carries out spray degreasing, during degreasing degreasing agent select for use S5160 that Shanghai Kai Miteer chemicals Co., Ltd produces and with water allotment concentration be the degreasant solution of 9g/L-11g/L, temperature is controlled at 60～85 ℃; Steel band through behind the spray degreasing again after the subcooled water spray Cleaning for High Capacity is extracted the water mark of steel strip surface; Said cold water temperature is below 30 ℃; Steel strip surface stress is slowly dried and removes in the hyperthermia drying chamber that gets into 200～300 ℃ with 5～10 meters/minute, simultaneously at steel band lining paper during rolling end to end;

(7 ') little extension stretch bending is rectified bundling: take little stretch bending to rectify technology; Adopt permanent extension mode; Elongation control is carried out little straightening below 0.10%, and purpose is to keep to be divided into the finished product volume according to 2 times of the requirement width dimensions afterwards through high temperature low speed oven dry removing steel strip surface compressive stress state.

Said 2B surface stainless steel refers to cold rolling after heat treatment, pickling, and making the surface with finish rolling processing again is the stainless steel of appropriateness light.

Said soft attitude stainless steel just is meant the stainless steel of full annealing attitude (annealled), and its hardness and tensile strength are lower.

One of the object of the invention also is to provide a kind of precise stainless steel strip of said explained hereafter, it is characterized in that, and is not yielding after said precise stainless steel strip etches partially.

One of the object of the invention also is to provide a kind of purposes of said precise stainless steel strip.Said precise stainless steel strip can be used for the communications industry and produces stainless steel parts, is particularly preferred for producing the accurate stainless steel parts of dull and stereotyped smart mobile phone.

The invention is characterized in:

(1) step (5) adopts multi-pass small tension receiving coil, low reduction ratio technology to make that the finished product stress of calendering is even and smaller;

(2) step (6) adopts the utmost point to dry at a slow speed, can eliminate the steel strip surface compression;

(3) step (7) takes little extension stretch bending to rectify technology, adopts permanent extension mode not to be changed, and removes the steel strip surface compressive stress state.

Compared with prior art, the invention has the advantages that:

(1) through the synergy of technical parameter, make that the precise stainless steel strip of producing is not yielding when etching partially punching press, can meet the requirement of the production of accurate stainless steel parts;

(2) the precise stainless steel strip thickness deviation precision of producing is higher, and it is very little to fluctuate, the even no color differnece of surface-brightening and roughness, and plate shape is smooth, and stable mechanical performance is suitable for suitability for industrialized production, satisfies the high-quality requirement of electron trade.

Description of drawings

Fig. 1 is the flow chart of one embodiment of the invention.

Fig. 2 is the soft attitude cold-rolling stainless steel stock roll sketch map of selecting materials in the production technology.

The specific embodiment

For ease of understanding the present invention, it is following that the present invention enumerates embodiment.Those skilled in the art should understand, and said embodiment helps to understand the present invention, should not be regarded as concrete restriction of the present invention.

Embodiment 1

Select the trade mark to be SUS304 cold rolling feeds volume 2B surface in this instance, its thickness is 0.60mm, width 400mm.Finished product steel belt requires: thickness is 0.30mm, and width is each 1 of 125+125+128, tensile strength >=930Mpa, vickers hardness hv 310～370, percentage elongation >=3%, etch partially require indeformable.

(1) at first selects SUS304 cold rolling feeds volume; The surface is the 2B state, chemical composition: carbon (C) 0.05%, silicon (Si) 0.41%, manganese (Mn) 1.3%, phosphorus (P) 0.045%, sulphur (S) 0.028%, nickel (Ni) 8.03%, chromium (Cr) 18.1%, copper (Cu) 0.13%, nitrogen (N) 0.029%, molybdenum (Mo) 0.01%.

(2) to thickness be the stainless-steel cold-rolling stock roll of 0.60mm; Adopt Sendzimir 20 roller mills to carry out half finish rolling; Adopting the grand lubricating oil of state (China) Co., Ltd model when rolling is that DN.STAINLESS ROLLP-T mineral matter ROLLING OIL is lubricated cooling, and the oil temperature control is at 25 ℃ when rolling, and selecting working roll roll surface hardness is HRC60; The roll surface roughness is controlled at Ra0.10 μ m, then the thick stock roll of 0.60mm is rolled down to 0.37mm thickness through 3 passages.The first passage backward pull is controlled at 20kg/mm ², forward pull is controlled at 23kg/mm ², mill speed was controlled at 90m/ minute, and the forward and backward tension force of second passage is respectively 33kg/mm ², 30kg/mm ², the forward and backward tension force of the 3rd passage is respectively 50kg/mm ², 45kg/mm ², promptly increasing progressively by passage, second pass speed is 150m/ minute, and the 3rd pass speed is 200m/ minute, and last passage is put in order lining paper when furling.

(3) the semi-finished product cold-rolled strip through more than half finish rolling is carried out uncoiling; Spray degreasing through being added with the stainless steel degreasing agent with take nylon bristle to scrub to add nozzle spray steel strip surface, steel band is implemented surperficial degreasing, said stainless steel degreasing agent is taked S5160 that Shanghai Kai Miteer chemicals Co., Ltd produces and is formulated to the degreaser that concentration is 10g/L with water; Its temperature heating controls to 60 ℃; Steel band through scrub and spray degreasing after clean through the heat water-spraying again, its temperature heating is controlled at 45 ℃, the steel band after hot water cleans passes through its surface of hot-air seasoning again; Hot blast temperature is controlled at 100 ℃, 10 meters/minute of the speed controlling of steel band cleaning by degreasing oven dry.

(4) the semi-finished product cold rolling coil after more than half finish rolling, degreasing, cleaning, oven dry carries out solution heat treatment with the speed of 10 meters of the per minutes horizontal continuous bright annealing furnace through gas shield; The heat treatment temperature of this moment is made as 1130 ℃; For guaranteeing the at high temperature unlikely oxidation of steel band, be 25%N thereby take volume content ₂And 75%H ₂The decomposed ammonia body steel band is protected in the body of heater of high temperature closure, guarantee the steel strip surface light after the heat treatment, prevent to dampen between steel belt layer the whole volume of the steel band lining paper after handling with the protection steel strip surface.

(5) to carrying out the tension force rewinding through the steel band after the solution heat treatment, coil of strip tension force was complementary when purpose was to anneal back coil of strip tension force and mill milling.Tension Control is 100 meters/minute of 2500kg and speed controlling.

(6) the process solution heat treatment has recovered the cold-rolled steel coils of plasticity, takes Sendzimir 20 roller mills to carry out pressure-sizing for the second time and prolongs.Selecting working roll hardness is HRC60～62; It is DN.STAINLESS ROLLP-T that ROLLING OIL adopts the grand lubricating oil of state (China) Co., Ltd model; When rolling, carry out cooling and lubricating; The ROLLING OIL temperature control takes finished product to roll three passage process technology schemes at 25 ℃ to the etching stainless steel belt, rolls to 0.30mm 0.37mm thick.The first two passage takes working roll roll surface roughness at Ra0.1 μ m, and the forward and backward tension force of first passage is respectively 18kg/mm ², 16kg/mm ², second the forward and backward tension force of passage is respectively 17kg/mm ², 15kg/mm ², 100 meters/minute of rolling mill speeds, passage is taked texturing surface working roll for the third time, the roll surface roughness is carried out last finished surface calendering at Ra0.3 μ m, and reduction ratio is controlled at 5%, tension force is taked small tension receiving coil, promptly before and after tension force be respectively and be controlled at 15kg/mm ², 12kg/mm ², rolling mill speed is controlled at 120 meters/minute, and purpose is to reduce the compression inequality of steel band pressure-sizing time-delay generation on the surface and cause bigger defective, and lining paper 100 encloses end to end.

(7) steel band that rolls finished product is carried out the cleaning by degreasing oven dry, the steel coil strip uncoiling gets into vertical spray degreasing case and carries out surperficial degreasing, the S5160 stainless steel degreasing agent that degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce.During production and water is allocated as the degreaser that contains the 11g/L degreasing agent and the temperature heating is controlled at 70 ℃.Steel band is extracted surperficial raffinate entering cold water spray Cleaning for High Capacity chamber cleaning steel strip surface alkaline residue through squeeze roll again after spraying surperficial degreasing; Squeeze out steel strip surface cold water mark through big cornerite hoisting type squeeze roll afterwards; Get into 300 ℃ hyperthermia drying chamber; 5 meters/minute of speed are carried out the utmost point slowly oven dry at a slow speed, and purpose is to remove the steel strip surface compression, lining paper end to end during rolling.

(8) take little stretch bending to rectify technology to the steel coil strip of degreasing, cleaning, oven dry and carry out the adjustment of steel band template; Take permanent extension mode; Percentage elongation is 0.10%, and so humble extension and straightening purpose are to be unlikely to rectify through stretch bending with the steel band of the state of eliminating the steel strip surface compression through the oven dry of high temperature low speed to produce new bending stress, thereby occurs being out of shape when causing etching partially; 2 times of branches by width dimensions are rolled into the finished product steel belt volume then, the test package warehouse-in.

Its main performance index of product that adopts above-mentioned technology to produce is following:

(1) thickness: 0.30 ± 0.003mm.

(2) width: 125～128-0.10mm.

(3) hardness: HV315 ± 5.

(4) tensile strength >=930～1100MPa percentage elongation >=15%.

(5) surface roughness: Ra=0.2～0.3 μ m.

(6) glacing flatness≤0.50mm.

(7) it is indeformable to etch partially drawing.

Embodiment 2

This instance is selected trade mark SUS304 cold rolling feeds volume, and the surface is the 2B state, and its thickness is 0.90mm; Width 400mm, finished product steel belt thickness are 0.50mm, and the volume degree is each 1 of 128+128+125mm; Tensile strength >=930Mpa; Vickers hardness hv 310～370, percentage elongation >=3%, etch partially require indeformable.

(1) at first select SUS304 cold-rolling stainless steel stock roll, the surface is the 2B state.Chemical composition: with embodiment 1.

(2) to thickness be the stainless-steel cold-rolling stock roll of 0.90mm, adopt Sendzimir 20 roller mills to carry out half finish rolling.The model that adopts the grand lubricating oil of state (China) Co., Ltd to produce when rolling is that DN.STAINLESSROLL OIL P-T mineral matter ROLLING OIL is lubricated cooling; The oil temperature control is at 50 ℃ when rolling; Selecting working roll roll surface hardness is HRC62; The roll surface roughness is controlled at Ra0.10 μ m, and plate shape control roll is selected the long 270mm of awl, tapering 1/850.Then the thick stock roll of 0.90mm is rolled down to 0.62mm thickness through 3 passages.The first passage backward pull is controlled at 25kg/mm ², forward pull is controlled at 28kg/mm ², mill speed was controlled at 80m/ minute, and the forward and backward tension force of second passage is respectively 36kg/mm ², 34kg/mm ², the forward and backward tension force of the 3rd passage is respectively 50kg/mm ², 48kg/mm ², promptly by increasing progressively by passage, second pass speed is 180m/ minute, and the 3rd pass speed is 190m/ minute, and last passage is put in order lining paper when furling.

(3) the semi-finished product cold-rolled strip through more than half finish rolling is carried out uncoiling; Spray degreasing through being added with the stainless steel degreasing agent is implemented surperficial degreasing with taking nylon bristle to scrub to add nozzle spray steel strip surface to steel band; S5160 and water that said stainless steel degreasing agent takes Shanghai Kai Miteer chemicals Co., Ltd to produce are formulated to the degreaser that concentration contains the 10g/L degreasing agent; Its temperature controls to 75 ℃ through heating; Steel band through scrub and spray degreasing after clean the heating of its temperature through the heat water-spraying again and be controlled at 55 ℃; Steel band after hot water cleans passes through its surface of hot-air seasoning again, and hot blast temperature is controlled at 120 ℃, 5 meters/minute of the speed controlling of steel band degreasing, cleaning, oven dry.

(4) the semi-finished product cold rolling coil after more than half finish rolling, degreasing, cleaning, oven dry carries out solution heat treatment with the speed of 5 meters of the per minutes horizontal continuous bright annealing furnace through gas shield; The heat treatment temperature of this moment is made as 1130 ℃; For guaranteeing the at high temperature unlikely oxidation of steel band, be 25%N thereby take volume content ₂And 75%H ₂The decomposed ammonia body steel band is protected, in order to avoid oxidation at high temperature, the steel band non-oxidizing bright after guaranteeing to anneal, the interlayer lining paper avoids steel strip surface to dampen during rolling.

(5) steel band after solution heat treatment carries out the tension force rewinding; Its Tension Control is 100 meters/minute of 3000kg and speed controlling; Uncoiling tension coupling and can not cause steel strip surface to be dampened when this technology purpose is guaranteed coil of strip rolling tension force and next step finish rolling after the heat treatment, the sideslip influence was normally rolling when coil of strip was rolling.

(6) the process solution heat treatment has recovered plasticity and through the steel coil strip of coil of strip tension force rewinding coupling, has adopted Sendzimir 20 roller mills to carry out pressure-sizing for the second time and prolong.Select working roll hardness this moment is HRC62; The long 220mm of plate shape control roll awl; Tapering 1/850; DN.STAINLESS.ROLL LIL (P-T) ROLLING OIL that ROLLING OIL adopts the grand lubricating oil of state (China) Co., Ltd to produce is carried out cooling and lubricating, and the ROLLING OIL temperature control takes finished product to roll three passage process technology schemes at 40 ℃ to the etching stainless steel belt.With 0.62mm thick roll to 0.50mm thick.The first two passage takes working roll roll surface roughness at Ra0.15 μ m, and the forward and backward tension force of first passage is respectively 18kg/mm ², 16kg/mm ², second the forward and backward tension force of passage is respectively 17kg/mm ², 15kg/mm ², 100 meters/minute of rolling mill speeds, passage is changed working roll for the third time, and the roll surface roughness makes its straight width maximization at Ra0.4 μ m and adjustment plate shape roller.Carry out final pass calendering, and rolling reduction ratio is controlled at 5%, tension force is taked small tension receiving coil, promptly before and after tension force be respectively and be controlled at 18kg/mm ², 15kg/mm ², rolling mill speed is controlled at 150 meters/minute.Through increasing passage, reduce the reduction ratio of final pass, reduce tension force, change plate shape control roll glacing flatness is eliminated to the greatest extent steel strip surface and is produced the uneven and excessive defective of compression, and final pass is put in order the whole lining papers of volume.

The steel band uncoiling of (7) finished product is rolled in finish rolling gets into vertical spray degreasing case and carries out surperficial degreasing, the S5160 stainless steel degreasing agent that degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce.During production and water degreaser and the temperature heating that is allocated as concentration 11g/L be controlled at 75 ℃.Steel band is through after spraying surperficial degreasing; Extract surperficial raffinate through squeeze roll again and get into cold water spray Cleaning for High Capacity chamber cleaning steel strip surface alkaline residue; Squeeze out steel strip surface cold water mark through big cornerite hoisting type squeeze roll afterwards, get into 300 ℃ hyperthermia drying chamber, carry out the utmost point slowly oven dry at a slow speed with 5 meters speed of per minute; Purpose is to remove the steel strip surface compression, lining paper end to end during rolling.

(8) take little stretch bending to rectify technology to the steel coil strip of degreasing, cleaning, oven dry and carry out the adjustment of steel band template, take permanent extension mode, percentage elongation is made as 0.10%, and leveling roller opening degree is adjusted into-1.0mm simultaneously.Humble extension like this and straightening purpose are to be unlikely to rectify the new bending stress of generation through stretch bending through the steel band of high temperature low speed oven dry with the state of elimination steel strip surface compression; Thereby distortion appears when causing etching partially; 2 times of branches by width dimensions are rolled into the finished product steel belt volume then, the test package warehouse-in.

Adopt product that above-mentioned technology produces its mainly index is following rapidly:

(1) thickness: 0.50 ± 0.005mm.

(2) width: 125～128-0.10mm.

(3) hardness: HV320 ± 0.5.

(4) tensile strength >=930～1100Mpa; Percentage elongation >=15%.

(5) surface roughness: Ra=0.2～0.3 μ m.

(6) glacing flatness≤0.5mm.

(7) it is indeformable to etch partially drawing.

Embodiment 3

This instance is selected trade mark SUS304 cold rolling feeds volume, and the surface is the 2B state, and its thickness is 1.50mm; Width 400mm, finished product steel belt thickness are 0.50mm, and the volume degree is each 1 of 125+125+128mm; Tensile strength >=930Mpa; Vickers hardness hv 310～370, percentage elongation >=3%, etch partially require indeformable.

(2) to thickness be the stainless-steel cold-rolling stock roll of 1.50mm, adopt Sendzimir 20 roller mills to carry out half finish rolling.The model that adopts the grand lubricating oil of state (China) Co., Ltd to produce when rolling is that DN.STAINLESSROLL OIL P-T mineral matter ROLLING OIL is lubricated cooling; The oil temperature control is at 30 ℃ when rolling; Selecting working roll roll surface hardness is HRC61; The roll surface roughness is controlled at Ra0.10 μ m, and plate shape control roll is selected the long 270mm of awl, tapering 1/850.Then the thick stock roll of 1.5mm is rolled down to 0.62mm thickness through 6 passages.The first passage backward pull is controlled at 28kg/mm ², forward pull is controlled at 31kg/mm ², mill speed is controlled at 90 meters/minute, and second to the six passage forward pull is respectively 35kg/mm ², 38kg/mm ², 41kg/mm ², 44kg/mm ², 47kg/mm ², second to the six passage backward pull is respectively 31kg/mm ², 33kg/mm ², 36kg/mm ², 38kg/mm ², 42kg/mm ², promptly by increasing progressively by passage, second to six pass speed was respectively 158m/ minute, 164m/ minute, 165m/ minute, 167m/ minute, 175m/ minute, last passage is whole lining paper when furling.

(3) the semi-finished product cold-rolled strip through more than half finish rolling is carried out uncoiling; Spray degreasing through being added with the stainless steel degreasing agent is implemented surperficial degreasing with taking nylon bristle to scrub to add nozzle spray steel strip surface to steel band then; S5160 and water that said stainless steel degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce are formulated to the degreaser that concentration is 10g/L, and its temperature controls to 75 ℃ through heating.Steel band through scrub and spray degreasing after clean the heating of its temperature through the heat water-spraying again and be controlled at 55 ℃, the steel band after hot water cleans passes through its surface of hot-air seasoning again, hot blast temperature is controlled at 110 ℃.5 meters/minute of the speed controlling of steel band degreasing, cleaning, oven dry.

(4) the semi-finished product cold rolling coil after more than half finish rolling, degreasing, cleaning, oven dry carries out solution heat treatment with the speed of 5 meters of the per minutes horizontal continuous bright annealing furnace through gas shield; The heat treatment temperature of this moment is made as 1150 ℃, and its volume content of reduction protection atmosphere of employing is 25%N ₂And 75%H ₂The decomposed ammonia body.Steel band is protected, in order to avoid oxidation at high temperature, the steel band non-oxidizing bright after guaranteeing to anneal, interlayer lining paper during rolling.

(5) steel band after solution heat treatment carries out the tension force rewinding; Its Tension Control 120 meters/minute of speed controlling when 3000kg and rolling; Uncoiling tension coupling and can not cause steel strip surface to be dampened when this technology purpose is guaranteed coil of strip rolling tension force and next step finish rolling after the heat treatment, the sideslip influence was normally rolling when coil of strip was rolling.

(6) steel coil strip of having recovered plasticity and having handed in an examination paper and mated through coil of strip tension force through solution heat treatment is taked Sendzimir 20 roller mills to carry out pressure-sizing for the second time and is prolonged.Select working roll hardness this moment is HRC62, the long 220mm of plate shape control roll awl, tapering 1: 850.It is that DN.STAINLESS.ROLL LIL (P-T) carries out cooling and lubricating that ROLLING OIL adopts the grand lubricating oil of state (China) Co., Ltd production model, and the ROLLING OIL temperature control takes finished product to roll three passage process technology schemes at 35 ℃ to the etching stainless steel belt.With 0.62mm thick roll to 0.50mm thick.The first two passage takes working roll roll surface roughness at Ra0.18 μ m, and the forward and backward tension force of first passage is respectively 18kg/mm ², 16kg/mm ², second the forward and backward tension force of passage is respectively 17kg/mm ², 15kg/mm ², 100 meters/minute of rolling mill speeds, the 3rd passage is changed working roll, and the roll surface roughness makes its straight width maximization at Ra0.35 μ m and adjustment plate shape roller.Carry out final pass calendering reduction ratio and be controlled in 5%, tension force is taked small tension receiving coil, and promptly front and back tension force is respectively and is controlled at 17kg/mm ², 14kg/mm ², rolling mill speed is controlled at 150 meters/minute.Through increasing passage, reduce the reduction ratio of final pass, reduce tension force, change plate shape control roll glacing flatness is eliminated to the greatest extent steel strip surface and is produced the uneven and excessive defective of compression.The whole lining papers of the whole volume of final pass.

The steel band uncoiling of (7) finished product is rolled in finish rolling gets into vertical spray degreasing case and carries out surperficial degreasing, the S5160 stainless steel degreasing agent that degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce.During production and water degreaser and the temperature heating that is allocated as concentration 11g/L be controlled at 75 ℃.Steel band is through after spraying surperficial degreasing; Extract surperficial raffinate through squeeze roll again and get into cold water spray Cleaning for High Capacity chamber cleaning steel strip surface alkaline residue; Squeeze out steel strip surface cold water mark through big cornerite hoisting type squeeze roll afterwards; Get into 300 ℃ hyperthermia drying chamber, carry out the utmost point slowly oven dry at a slow speed with 5 meters speed of per minute, purpose is to remove the steel strip surface compression.Lining paper end to end during rolling.

(1) thickness: 0.50 ± 0.005mm.

(2) width: 125～128-0.10mm.

(3) hardness: HV320 ± 5.

(4) tensile strength >=930～1100Mpa; Percentage elongation >=15%.

(5) surface roughness: Ra=0.2～0.3 μ m.

(6) glacing flatness≤0.5mm.

(7) it is indeformable to etch partially drawing.

Embodiment 4

This instance is selected trade mark SUS304 cold rolling feeds volume, and the surface is the 2B state, and its thickness is 0.50mm; Width 500mm, finished product steel belt thickness are 0.10mm, and the volume degree is each 1 of 125+127+128mm; Tensile strength >=930Mpa; Vickers hardness hv 310～370, percentage elongation >=3%, etch partially require indeformable.

(2) to thickness be the stainless-steel cold-rolling stock roll of 0.50mm, adopt Sendzimir 20 roller mills to carry out half finish rolling.The model that adopts the grand lubricating oil of state (China) Co., Ltd to produce when rolling is that DN.STAINLESSROLL OIL P-T mineral matter ROLLING OIL is lubricated cooling; The oil temperature control is at 10 ℃ when rolling; Selecting working roll roll surface hardness is HRC55; The roll surface roughness is controlled at Ra0.80 μ m, and plate shape control roll is selected the long 270mm of awl, tapering 1/850.Then the thick stock roll of 0.50mm is rolled down to 0.128mm thickness through 6 passages.The first passage backward pull is controlled at 10kg/mm ², forward pull is controlled at 15kg/mm ², mill speed is controlled at 60 meters/minute, and second to the six passage forward pull is respectively 18kg/mm ², 20kg/mm ², 24kg/mm ², 26kg/mm ², 28kg/mm ², second to the six passage backward pull is respectively 15kg/mm ², 18kg/mm ², 20kg/mm ², 22kg/mm ², 24kg/mm ², promptly by increasing progressively by passage, second to six pass speed was respectively 110m/ minute, 124m/ minute, 135m/ minute, 140 minutes, 142 minutes, last passage is whole lining paper when furling.

(3) the semi-finished product cold-rolled strip through more than half finish rolling is carried out uncoiling; Spray degreasing through being added with the stainless steel degreasing agent is implemented surperficial degreasing with taking nylon bristle to scrub to add nozzle spray steel strip surface to steel band then; S5160 and water that said stainless steel degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce are formulated to the degreaser that concentration is 11g/L, and its temperature controls to 35 ℃ through heating.Steel band through scrub and spray degreasing after clean its temperature and be controlled at 25 ℃ through the heat water-spraying again, the steel band after hot water cleans passes through its surface of hot-air seasoning again, hot blast temperature is controlled at 80 ℃.25 meters/minute of the speed controlling of steel band degreasing, cleaning, oven dry.

(4) the semi-finished product cold rolling coil after more than half finish rolling, degreasing, cleaning, oven dry carries out solution heat treatment with the speed of 3 meters of the per minutes horizontal continuous bright annealing furnace through gas shield, and the heat treatment temperature of this moment is made as 900 ℃, and the reduction protection atmosphere of employing is N ₂Steel band is protected, in order to avoid oxidation at high temperature, the steel band non-oxidizing bright after guaranteeing to anneal, interlayer lining paper during rolling.

(5) steel band after solution heat treatment carries out the tension force rewinding; Its Tension Control 4 meters/minute of speed controlling when 100kg and rolling; Uncoiling tension coupling and can not cause steel strip surface to be dampened when this technology purpose is guaranteed coil of strip rolling tension force and next step finish rolling after the heat treatment, the sideslip influence was normally rolling when coil of strip was rolling.

(6) steel coil strip of having recovered plasticity and having handed in an examination paper and mated through coil of strip tension force through solution heat treatment is taked Sendzimir 20 roller mills to carry out pressure-sizing for the second time and is prolonged.Select working roll hardness this moment is HRC55, the long 180mm of plate shape control roll awl, tapering 1/750.The model that ROLLING OIL adopts the grand lubricating oil of state (China) Co., Ltd to produce is that DN.STAINLESS.ROLL LIL (P-T) carries out cooling and lubricating, and the ROLLING OIL temperature control takes finished product to roll three passage process technology schemes at 10 ℃ to the etching stainless steel belt.With 0.128mm thick roll to 0.10mm thick.The first two passage takes working roll roll surface roughness at Ra0.70 μ m, and the forward and backward tension force of first passage is respectively 12kg/mm ², 10kg/mm ², second the forward and backward tension force of passage is respectively 33kg/mm ², 25kg/mm ², 50 meters/minute of rolling mill speeds, the 3rd passage is changed working roll, and the roll surface roughness makes its straight width maximization at Ra0.1 μ m and adjustment plate shape roller.Carry out final pass calendering reduction ratio and be controlled in 1%, tension force is taked small tension receiving coil, and promptly front and back tension force is respectively and is controlled at 25kg/mm ², 20kg/mm ², rolling mill speed is controlled at 180 meters/minute.Through increasing passage, reduce the reduction ratio of final pass, reduce tension force, change plate shape control roll glacing flatness is eliminated to the greatest extent steel strip surface and is produced the uneven and excessive defective of compression.The whole lining papers of the whole volume of final pass.

The steel band uncoiling of (7) finished product is rolled in finish rolling gets into vertical spray degreasing case and carries out surperficial degreasing; The S5160 stainless steel degreasing agent that degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce, the degreaser and the temperature that are allocated as concentration 11g/L with water during production are heated and are controlled at 35 ℃.Steel band is through after spraying surperficial degreasing; Extract surperficial raffinate through squeeze roll again and get into cold water spray Cleaning for High Capacity chamber cleaning steel strip surface alkaline residue; Squeeze out steel strip surface cold water mark through big cornerite hoisting type squeeze roll afterwards; Get into 100 ℃ hyperthermia drying chamber, carry out the utmost point slowly oven dry at a slow speed with 3 meters/component velocity, purpose is to remove the steel strip surface compression.Lining paper end to end during rolling.

(8) take little stretch bending to rectify technology to the steel coil strip of degreasing, cleaning, oven dry and carry out the adjustment of steel band template, take permanent extension mode, percentage elongation is made as 0.20%, and leveling roller opening degree is adjusted into-1.0mm simultaneously.Humble extension like this and straightening purpose are to be unlikely to rectify the new bending stress of generation through stretch bending through the steel band of high temperature low speed oven dry with the state of elimination steel strip surface compression; Thereby distortion appears when causing etching partially; 2 times of branches by width dimensions are rolled into the finished product steel belt volume then, the test package warehouse-in.

Its key technical indexes of product that adopts above-mentioned technology to produce is following:

(1) thickness: 0.10 ± 0.002mm.

(2) width: 125～128-0.10mm.

(3) hardness: HV320 ± 0.5.

(4) tensile strength >=930～1100Mpa; Percentage elongation >=15%.

(5) surface roughness: Ra=0.2～0.3 μ m.

(6) glacing flatness≤0.5mm.

(7) it is indeformable to etch partially drawing.

Embodiment 5

This instance is selected trade mark SUS304 cold rolling feeds volume, and the surface is the 2B state, and its thickness is 1.80mm; Width 600mm, finished product steel belt thickness are 0.60mm, and the volume degree is each 1 of 125+127+128mm; Tensile strength >=930Mpa; Vickers hardness hv 310～370, percentage elongation >=3%, etch partially require indeformable.

(2) to thickness be the stainless-steel cold-rolling stock roll of 1.80mm, adopt Sendzimir 20 roller mills to carry out half finish rolling.The model that adopts the grand lubricating oil of state (China) Co., Ltd to produce when rolling is that DN.STAINLESSROLL OIL P-T mineral matter ROLLING OIL is lubricated cooling; The oil temperature control is at 70 ℃ when rolling; Selecting working roll roll surface hardness is HRC68; The roll surface roughness is controlled at Ra0.05 μ m, and plate shape control roll is selected the long 270mm of awl, tapering 1/850.Then the thick stock roll of 1.80mm is rolled down to 0.75mm thickness through 5 passages.The first passage backward pull is controlled at 40kg/mm ², forward pull is controlled at 45kg/mm ², mill speed is controlled at 130 meters/minute, and second to the five passage forward pull is respectively 40kg/mm ², 48kg/mm ², 55kg/mm ², 60kg/mm ², second to the five passage backward pull is respectively 36kg/mm ², 45kg/mm ², 52/mm ², 56kg/mm ², promptly by increasing progressively by passage, second to five year pass speed is respectively 253m/ minute, 286m/ minute, 300m/ minute, 320m/ minute, last passage is whole lining paper when furling.

(3) the semi-finished product cold-rolled strip through more than half finish rolling is carried out uncoiling; Spray degreasing through being added with the stainless steel degreasing agent is implemented surperficial degreasing with taking nylon bristle to scrub to add nozzle spray steel strip surface to steel band then; S5160 and water that said stainless steel degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce are formulated to the degreaser that concentration is 11g/L, and its temperature controls to 95 ℃ through heating.Steel band through scrub and spray degreasing after clean its temperature and be controlled at 90 ℃ through the heat water-spraying again, the steel band after hot water cleans passes through its surface of hot-air seasoning again, hot blast temperature is controlled at 150 ℃.3 meters/minute of the speed controlling of steel band degreasing, cleaning, oven dry.

(4) the semi-finished product cold rolling coil after more than half finish rolling, degreasing, cleaning, oven dry carries out solution heat treatment with the speed of 25 meters of the per minutes horizontal continuous bright annealing furnace through gas shield; The heat treatment temperature of this moment is made as 1300 ℃, and the reduction protection atmosphere of employing is N ₂Steel band is protected, in order to avoid oxidation at high temperature, the steel band non-oxidizing bright after guaranteeing to anneal, interlayer lining paper during rolling.

(5) steel band after solution heat treatment carries out the tension force rewinding; Its Tension Control 200 meters/minute of speed controlling when 3300kg and rolling; Uncoiling tension coupling and can not cause steel strip surface to be dampened when this technology purpose is guaranteed coil of strip rolling tension force and next step finish rolling after the heat treatment, the sideslip influence was normally rolling when coil of strip was rolling.

(6) steel coil strip of having recovered plasticity and having handed in an examination paper and mated through coil of strip tension force through solution heat treatment is taked Sendzimir 20 roller mills to carry out pressure-sizing for the second time and is prolonged.Select working roll hardness this moment is HRC68, the long 250mm of plate shape control roll awl, tapering 1/950.The model that ROLLING OIL adopts the grand lubricating oil of state (China) Co., Ltd to produce is that DN.STAINLESS.ROLL LIL (P-T) carries out cooling and lubricating, and the ROLLING OIL temperature control takes finished product to roll three passage process technology schemes at 70 ℃ to the etching stainless steel belt.With 0.75mm thick roll to 0.60mm thick.The first two passage takes working roll roll surface roughness at Ra0.05 μ m, and the forward and backward tension force of first passage is respectively 15kg/mm ², 12kg/mm ², second the forward and backward tension force of passage is respectively 25kg/mm ², 22kg/mm ², 180 meters/minute of rolling mill speeds, the 3rd passage is changed working roll, and the roll surface roughness makes its straight width maximization at Ra0.8 μ m and adjustment plate shape roller.Carry out final pass calendering reduction ratio and be controlled in 8%, tension force is taked small tension receiving coil, and promptly front and back tension force is respectively and is controlled at 8kg/mm ², 5kg/mm ², rolling mill speed is controlled at 130 meters/minute.Through increasing passage, reduce the reduction ratio of final pass, reduce tension force, change plate shape control roll glacing flatness is eliminated to the greatest extent steel strip surface and is produced the uneven and excessive defective of compression.The whole lining papers of the whole volume of final pass.

The steel band uncoiling of (7) finished product is rolled in finish rolling gets into vertical spray degreasing case and carries out surperficial degreasing; The S5160 stainless steel degreasing agent that degreasing agent adopts Shanghai Kai Miteer chemicals Co., Ltd to produce, the degreaser and the temperature that are allocated as concentration 11g/L with water during production are heated and are controlled at 95 ℃.Steel band is through after spraying surperficial degreasing; Extract surperficial raffinate through squeeze roll again and get into cold water spray Cleaning for High Capacity chamber cleaning steel strip surface alkaline residue; Squeeze out steel strip surface cold water mark through big cornerite hoisting type squeeze roll afterwards; Get into 500 ℃ hyperthermia drying chamber, carry out the utmost point slowly oven dry at a slow speed with 25 meters/component velocity, purpose is to remove the steel strip surface compression.Lining paper end to end during rolling.

(8) take little stretch bending to rectify technology to the steel coil strip of degreasing, cleaning, oven dry and carry out the adjustment of steel band template, take permanent extension mode, percentage elongation is made as 0.15%, and leveling roller opening degree is adjusted into-1.0mm simultaneously.Humble extension like this and straightening purpose are to be unlikely to rectify the new bending stress of generation through stretch bending through the steel band of high temperature low speed oven dry with the state of elimination steel strip surface compression; Thereby distortion appears when causing etching partially; 2 times of branches by width dimensions are rolled into the finished product steel belt volume then, the test package warehouse-in.

(1) thickness: 0.60 ± 0.005mm.

(2) width: 125～128-0.10mm.

(3) hardness: HV320 ± 5.

(4) tensile strength >=930～1100Mpa; Percentage elongation >=15%.

(5) surface roughness: Ra=0.2～0.3 μ m.

(6) glacing flatness≤0.5mm.

(7) it is indeformable to etch partially drawing.

Applicant's statement; The present invention explains detailed process equipment of the present invention and technological process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technological process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technological process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and auxiliary element, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.

Claims

1. one kind is etching partially the production technology of on-deformable precise stainless steel strip afterwards, may further comprise the steps:

(1) half finish rolling system: the soft attitude cold-rolling stainless steel stock roll to 2B is surperficial, thickness is 0.50～1.80mm is carried out half finish rolling system, and the stainless steel stock roll is rolled down to 0.128～0.80mm thickness through 2 above passages; The first passage backward pull is 10～40kg/mm ², the first passage forward pull is 15～45kg/mm ², the forward and backward tension force of each passage independently is respectively 15～70kg/mm afterwards ²

2. technology as claimed in claim 1 is characterized in that, soft attitude cold-rolling stainless steel stock roll thickness is 0.55～1.70mm described in the step (1), further is preferably 0.58～1.60mm, is preferably 0.60～1.50mm especially;

Preferably, soft attitude cold-rolling stainless steel stock roll width is below the 1300mm described in the step (1), further is preferably 500～1300mm, is preferably 1000～1250mm especially;

Preferably, the middle material of choosing said soft attitude cold-rolling stainless steel stock roll in the step (1) involves in row half finish rolling system;

Preferably, half finish rolling system described in the step (1) adopts Sendzimir 20 roller mills;

Preferably, working roll hardness is HRC55～68 described in the step (1), further is preferably HRC58～65, is preferably HRC60～62 especially;

Preferably, working roll roll surface roughness described in the step (1) is below the Ra0.80 μ m, further is preferably Ra0.05～0.70 μ m, is preferably Ra0.10～0.60 μ m especially;

Preferably, half finish rolling system described in the step (1) adopts the mineral matter ROLLING OIL to carry out cooling and lubricating;

Preferably, the ROLLING OIL temperature is 10～70 ℃ during half finish rolling system described in the step (1), further is preferably 15～60 ℃, more preferably 20～55 ℃, is preferably 25～50 ℃ especially;

Preferably, half finish rolling system road number of times is more than 3 described in the step (1);

Preferably, described in the step (1) after the half finish rolling system thickness of stainless-steel roll be 0.25～0.70mm, further be preferably 0.30～0.65mm, be preferably 0.37～0.62mm especially;

3. according to claim 1 or claim 2 technology is characterized in that the first passage forward pull of half finish rolling system described in the step (1) is preferably 20～35kg/mm ², be preferably 23～31kg/mm especially ²

Preferably, the first passage mill speed of half finish rolling system described in the step (1) is 60～130 meters/minute, further is preferably 70～110 meters/minute, is preferably 80～100 meters/minute especially;

Preferably, each pass speed that second passage of half finish rolling system rises described in the step (1) independently is 110～320 meters/minute, further is preferably 130～300 meters/minute, is preferably 150～280 meters/minute especially;

Preferably, the whole volume of the steel band of last passage of half finish rolling system described in the step (1) lining paper protection;

Preferably, degreasing described in the step (2) adds hairbrush through spray and cleans and to carry out;

Preferably, degreasing is carried out in the degreasing case described in the step (2);

Preferably, used degreasing agent is an alkaline defatting agent in the step (2);

Preferably, in the step (2) during spray degreasing solution temperature be 35～95 ℃, further be preferably 50～90 ℃, be preferably 60～80 ℃ especially;

Preferably, clean after the degreasing described in the step (2); Preferably, said cleaning is a spray Cleaning for High Capacity; Preferably, said spray Cleaning for High Capacity adopts hot water to carry out; Preferred said hot water temperature is 25～90 ℃ and further is preferably 35～70 ℃, is preferably 45～60 ℃ especially.

4. like each the described technology among the claim 1-3, it is characterized in that drying is preferably hot-air seasoning described in the step (2); Preferably, said hot blast temperature is 80 ℃～200 ℃, further is preferably 90～150 ℃, is preferably 100～120 ℃ especially;

Preferably, degreasing speed is below 25 meters/minute described in the step (2), further is preferably 3～20 meters/minute, is preferably 5～15 meters/minute especially;

Preferably, cleaning speed is below 25 meters/minute described in the step (2), further is preferably 3～20 meters/minute, is preferably 5～15 meters/minute especially;

Preferably, solution heat treatment temperature is 1000～1200 ℃ described in the step (3), is preferably 1100～1150 ℃ especially;

Preferably, solution heat treatment adopts horizontal continuous bright annealing furnace to carry out described in the step (3);

Preferably, solution heat treatment is carried out under reproducibility and/or inert gas shielding described in the step (3), and especially preferably protecting gas is that volume content is 25%N ₂And 75%H ₂The decomposed ammonia body;

Preferably, the annealing speed of solution heat treatment is preferably below 25 meters/minute described in the step (3), further is preferably 3～20 meters/minute, is preferably 5～15 meters/minute especially;

Preferably, whole volume lining paper during solution heat treatment rolling described in the step (3);

Preferably, rewinding tension force is 100～3300kg described in the step (4), further is preferably 220～3100kg, is preferably 300～3000kg especially;

Preferably, rewinding speed is below 200 meters/minute described in the step (4), further is preferably 5～150 meters/minute, is preferably 10～120 meters/minute especially.

5. like each the described technology among the claim 1-4, it is characterized in that, described in the step (5) after the finish rolling system thickness of stainless-steel roll be preferably 0.20～0.60mm, further be preferably 0.25～0.55mm, be preferably 0.30～0.50mm especially;

Preferably, finish rolling system described in the step (5) adopts Sendzimir 20 roller mills;

Preferably, working roll hardness is HRC55～68 described in the step (5), further is preferably HRC58～65, is preferably HRC60～62 especially;

Preferably, finish rolling system described in the step (5) adopts the mineral matter ROLLING OIL to carry out cooling and lubricating;

Preferably, the ROLLING OIL temperature during finish rolling system described in the step (5) is 10～70 ℃, further is preferably 15～60 ℃, more preferably 20～55 ℃, is preferably 25～50 ℃ especially;

Preferably, finish rolling system road number of times is more than 3 described in the step (5), is preferably 3 especially;

Preferably, the working roll roll surface roughness of removing other passage of final pass in the step (5) is below the Ra0.70 μ m, further is preferably Ra0.05～0.60 μ m, is preferably Ra0.1～0.5 μ m especially;

Preferably, the plate shape control roll of each passage awl length independently is 180～250mm in the step (5), further is preferably 200～230mm, is preferably 220mm especially;

Preferably, the tapering that removes other passage of final pass in the step (5) is 1/750～1/950, further is preferably 1/800～1/900, is preferably 1/850 especially;

6. like each the described technology among the claim 1-5, it is characterized in that the roll roll surface roughness of final pass is Ra0.1～0.8 μ m in the step (5), further is preferably Ra0.2～0.6 μ m, is preferably Ra0.3～0.5 μ m especially;

Preferably, the percentage pass reduction of final pass is 1%～8% in the step (5), further is preferably 3%～6%, is preferably 4%～5% especially;

Preferably, the rolling mill speed of final pass is below 180m/ minute in the step (5), further is preferably below 160m/ minute, is preferably especially below 150m/ minute;

Preferably, head steel band lining paper 20～200 circles during final pass in the step (5), further preferred 40～120 circles, preferred especially 50～100 circles;

7. like each the described technology among the claim 1-6, it is characterized in that degreasing is preferably carried out through the spray degreasing agent described in the step (6);

Preferably, used degreasing agent is an alkaline defatting agent in the step (6);

Preferably, in the step (6) during spray degreasing solution temperature be 35～95 ℃, further be preferably 50～90 ℃, be preferably 60～85 ℃ especially;

Preferably, clean after the degreasing described in the step (6); Preferably, said cleaning is the cold water spray; Said cold water temperature is 0～35 ℃, is preferably 5～25 ℃ especially;

Preferably, dry described in the step (6) for drying; Preferably, said bake out temperature is 100～500 ℃, further is preferably 150～400 ℃, is preferably 200～300 ℃ especially;

Preferably, rate of drying is below 25 meters/minute described in the step (6), further is preferably 3～15 meters/minute, is preferably 5～10 meters/minute especially;

Preferably, head and/or afterbody steel band lining paper during rolling in the step (6);

Percentage elongation is preferably below 0.15% described in the step (7), is preferably especially below 0.10%;

8. like each the described technology among the claim 1-7, it is characterized in that the production technology of said precise stainless steel strip may further comprise the steps:

(1 ') half finish rolling system: 2B surface, thickness be 0.50～1.80mm, width be below the 1219mm soft attitude cold-rolling stainless steel stock roll in the middle of material involve in row half finish rolling system; Selecting the hardness of working roll is HRC60～62; The roll surface roughness is controlled at Ra0.10～0.60 μ m, adopts the mineral matter ROLLING OIL to carry out cooling and lubricating when rolling; Oily temperature control when rolling is at 25～50 ℃; 0.50 the stainless steel stock roll that～1.80mm is thick is rolled down to 0.128～0.75mm thickness through 2 above passages; The first passage backward pull is controlled at 20～28kg/mm ², forward pull is controlled at 23～31kg mm ², mill speed is controlled at 80～100 meters/minute, and the forward and backward tension force of each passage is 30～50kg/mm by increasing progressively principle by passage afterwards ², each pass speed is 150～280 meters/minute, last passage is put in order the rollback request lining paper;

The oven dry of (2 ') cleaning by degreasing: the stainless steel band to through more than half finish rolling systems carries out uncoiling, sprays through the degreasing case that is added with degreasing agent to add the hairbrush cleaning and degreasing; S5160 that stainless steel degreasing agent employing Shanghai Kai Miteer chemicals Co., Ltd produces and water are deployed into and contain 9g/L-11 g/L degreaser, and the solution temperature during spray degreasing is controlled at 60～80 ℃; Behind spray degreasing, clean through the heat water-spraying, the hot water temperature is controlled at 45～60 ℃ again, and the steel band after hot water cleans is handled through hot-air seasoning again, and hot blast temperature is 100～120 ℃; The speed of steel band cleaning by degreasing generally is controlled at 5～15 meters/minute;

(3 ') solution heat treatment: the cold-rolled steel coils after more than half finish rolling, degreasing, cleaning, oven dry takes the horizontal continuous bright annealing furnace of gas shield to carry out solution heat treatment; Heat treatment temperature is controlled at 1100～1150 ℃; 5～15 meters/minute of annealing speed; Adopting protective atmosphere is that volume content is the decomposed ammonia body of 25%N2 and 75%H2, requires whole volume lining paper during rolling;

(5 ') finish rolling system: the cold-rolled strip that recovers plasticity through solution heat treatment carries out pressure-sizing for the second time and prolongs; Selecting working roll hardness is HRC60～62, adopts the mineral matter ROLLING OIL to carry out cooling and lubricating when rolling, and ROLLING OIL is controlled at 25～50 ℃; Take three passage process programs: the steel band through solution treatment that 0.128～0.75mm is thick is calendered to 0.3～0.50mm finished product thickness; First and second passage working roll roll surface roughness Ra0.1～0.5 μ m, the long 220mm of plate shape control roll awl, tapering 1/850; Backward pull is controlled at 15～20kg/mm ², forward pull is controlled at 18～23kg/mm ², rolling mill speed was controlled at 90～150m/ minute, and the 3rd passage roll roll surface roughness is Ra0.3～0.5 μ m; Plate shape is controlled at the long 220mm of awl, tapering 1/850, and percentage pass reduction is controlled in 4%～5% scope; It is 10～18kg/mm that small tension receiving coil calendering technology, Tension Control are taked in front and back ², speed controlling is in 150 meters/minute, and steel band lining paper 50～100 encloses end to end;

(6 ') cleaning by degreasing surface: the cleaning by degreasing oven dry is carried out on its surface according to this type of requirement of products; Steel band carries out spray degreasing, and degreasing agent is selected the S5160 of Shanghai Kai Miteer chemicals Co., Ltd production for use and allocated the degreasant solution that contains 9g/L-11g/L with water during degreasing, and temperature is controlled at 60～85 ℃; Steel band through behind the spray degreasing again after the subcooled water spray Cleaning for High Capacity is extracted the water mark of steel strip surface, said cold water temperature is below 30 ℃, carry out with 5～10 meters/minute the hyperthermia drying chamber that gets into 200～300 ℃, simultaneously at steel band lining paper during rolling end to end;

(7 ') little extension stretch bending is rectified bundling: take little stretch bending to rectify technology, adopt permanent extension mode, elongation control is carried out little straightening below 0.10%, and 2 times according to the requirement width dimensions are divided into the finished product volume afterwards.

9. a precise stainless steel strip is characterized in that, said precise stainless steel strip is by each the described explained hereafter among the claim 1-8.

10. the purposes of precise stainless steel strip as claimed in claim 9 is characterized in that, said precise stainless steel strip is used for the communications industry and produces stainless steel parts, is particularly preferred for producing the accurate stainless steel parts of dull and stereotyped smart mobile phone.