CN103484639A - Production technology of cold-rolled hard stainless steel bands - Google Patents
Production technology of cold-rolled hard stainless steel bands Download PDFInfo
- Publication number
- CN103484639A CN103484639A CN201310413492.2A CN201310413492A CN103484639A CN 103484639 A CN103484639 A CN 103484639A CN 201310413492 A CN201310413492 A CN 201310413492A CN 103484639 A CN103484639 A CN 103484639A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel band
- rolling
- cold
- finished product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a production technology of cold-rolled hard stainless steel bands. The production technology comprises the step of hot withdrawal straightening stress-relieving annealing process which comprises the step that finished stainless steel bands are straightened and annealed in protective gas in a stress annealing furnace so as to produce the cold-rolled hard stainless steel bands. The production technology of the cold-rolled hard stainless steel bands comprises the step of the hot withdrawal straightening stress-relieving annealing process which replaces the two steps of cold withdrawal straightening and stress relieving, the production technology and production time are shortened, and production efficiency is improved; the step of the hot withdrawal straightening stress-relieving annealing process can be finished in one device, the number of devices is decreased, and occupied space is saved. The production technology of the cold-rolled hard stainless steel bands can relieve the stress completely, the cold-rolled hard stainless steel bands of the good plate type can be obtained, the roughness of plates can be directly controlled through a rolling mill, the types of the cold-rolled hard stainless steel bands are increased, and competitiveness of the cold-rolled hard stainless steel bands is improved.
Description
Technical field
The present invention relates to the production technical field of Stainless Steel Band, specifically, relate to a kind of production technique of cold rolling hard state Stainless Steel Band.
Background technology
In the production industry of cold rolling hard state Stainless Steel Band, to requiring after punching press the processing that need be eliminated stress of indeformable steel band, removing stress and template is well the most important specification of quality of this series products, and cold rolled stainless steel band is this type of products material.
The production technique of cold rolling hard state Stainless Steel Band in prior art, particularly traditional diamond internal blade, etching and weaving reed eliminate stress with Stainless Steel Band and the technique of improving template must have cold drawn rectifying and two steps of destressing, by distinct device, completed, production time is longer, and efficiency is relatively low.
Summary of the invention
Technical problem to be solved by this invention is that existing technique comprises cold drawn rectifying and destressing, and the production time is longer, and efficiency is relatively low.
Technical scheme of the present invention is as follows:
A kind of production technique of cold rolling hard state Stainless Steel Band, comprise the strong stress relieving processing of hot-drawn, and this process comprises: in the stress annealing stove, the finished product Stainless Steel Band is aligned in shielding gas and anneal, obtained described cold rolling hard state Stainless Steel Band.
Further: the temperature that the stress relieving processing is rectified in described hot-drawn is 500～800 ℃, and the tension force of described finished product Stainless Steel Band in described stress relief annealing stove is 10～50KN, and unit tension is 16-34kg/mm
2, speed is 4 m/mins～30 m/mins, the shielding gas that the stress relieving processing is rectified in described hot-drawn is nitrogen hydrogen mixeding gas, pure hydrogen gas or pure nitrogen gas; Described nitrogen hydrogen mixeding gas is the hydrogen that the volume content nitrogen that is 25% and volume content are 75%.
Further: the ingress of described stress relief annealing stove and exit are provided with the tension levelling device of the template of controlling described finished product Stainless Steel Band.
Further, described hot-drawn also comprises before rectifying the stress relieving processing: get the raw materials ready: the stainless steel cold-rolled steel band welding band-leading is obtained to the stainless steel cold-rolled steel band blank; Work in-process rolling: be the work in-process Stainless Steel Band by the rolling of described stainless steel cold-rolled steel band blank; Work in-process Stainless Steel Band skimming treatment: described work in-process Stainless Steel Band is cleaned, remove the grease of described work in-process stainless steel band surface; Solution treatment: by described work in-process Stainless Steel Band bright continuous heat treatment in shielding gas; Finished product rolling: be the finished product Stainless Steel Band by described work in-process rolling stainless steel band; Finished product Stainless Steel Band skimming treatment: described finished product Stainless Steel Band is cleaned, remove the grease of described finished product stainless steel band surface.
Further, also comprise: carry out respectively the hot-air seasoning processing after the skimming treatment of described work in-process Stainless Steel Band and described finished product rolling, the temperature of hot blast is 100-120 ℃, and steel belt operating speed is 15～30 m/mins.
Further: the thickness of the described described stainless steel cold-rolled steel band that obtains of getting the raw materials ready is 0.6～1.5mm.
Further: the equipment that described work in-process rolling adopts is 20 roller precision cold-rolled units; The rolling load adopted in the described work in-process operation of rolling is 1500～3000KN, and rolling tensile force is 100～200KN, and roll speed is 100～300mpm, and the thickness of described work in-process Stainless Steel Band is 0.15～0.75mm.
Further: the temperature of the skimming treatment of described work in-process Stainless Steel Band and the skimming treatment of described finished product Stainless Steel Band is 60～80 ℃.
Further: the equipment that described solution treatment adopts is bright continuous annealing furnace; described work in-process Stainless Steel Band is 9～30mpm by the speed of described bright continuous annealing furnace; the Heating temperature of described solution treatment is 1020～1145 ℃; the tapping temperature of described solution treatment is below 60 ℃, and the shielding gas of described solution treatment is that volume content is the mixed gas that 25% nitrogen and the volume content hydrogen that is 75% forms.
Further: the equipment that described finished product rolling adopts is 20 roller precision cold-rolled units, described finished product rolling adopts the bicone intermediate roll, the rolling load of described finished product rolling is 1000～2500KN, rolling tensile force is 50～120KN, roll speed is 100-400mpm, the thickness of described finished product Stainless Steel Band is 0.05～0.5mm, and after described finished product rolling, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
Technique effect of the present invention is as follows:
1, the production technique of cold rolling hard state Stainless Steel Band of the present invention is rectified step with hot-drawn and is substituted cold drawn rectifying and two steps of destressing, has shortened production technique and production time, has improved production efficiency.
2, the strong step of the hot-drawn of the production technique of cold rolling hard state Stainless Steel Band of the present invention completes in an equipment, has saved equipment and space.
3, the production technique of cold rolling hard state Stainless Steel Band of the present invention eliminates stress thoroughly, obtains the cold rolling hard state Stainless Steel Band that template is good.
4, the production technique of cold rolling hard state Stainless Steel Band of the present invention, without cold drawn strong operation, can be passed through the direct switchboard surface roughness of milling train, increases range of product, improves product competitiveness.
The accompanying drawing explanation
The schema of the production technique that Fig. 1 is cold rolling hard state Stainless Steel Band of the present invention;
Fig. 2 is the structural representation that is provided with the stress relief annealing stove of tension levelling device of the present invention.
Embodiment
As shown in Figure 1, be the schema of the production technique of cold rolling hard state Stainless Steel Band of the present invention.The step of this technique is as follows:
Step S1: get the raw materials ready
The stainless steel cold-rolled steel band welding band-leading is obtained to the stainless steel cold-rolled steel band blank.Wherein the thickness of stainless steel cold-rolled steel band is preferably 0.6～1.5mm.
Step S2: work in-process rolling
The stainless steel cold-rolled steel band blank that adopts 20 roller precision cold-rolled units that step S1 is obtained is rolled into the work in-process Stainless Steel Band.The rolling load of work in-process rolling is 1500～3000KN, and rolling tensile force is 100～200KN, and roll speed is 100～300 m/mins (meters per minute, mpm).After the work in-process rolling, the thickness of work in-process Stainless Steel Band is preferably 0.15～0.75mm, and the thickness deviation of this work in-process Stainless Steel Band is ± 0.005～± 0.01mm.
The purpose of work in-process rolling is that steel band is rolled down to desired thickness.
Step S3: work in-process Stainless Steel Band skimming treatment
Owing to adopting mineral oil cooling, lubricated in the work in-process operation of rolling, therefore roll and will the work in-process Stainless Steel Band be cleaned up by skimming treatment.
The work in-process Stainless Steel Band that adopts alkaline defatting agent that step S2 is obtained is cleaned at 60～80 ℃, removes the grease of work in-process stainless steel band surface.
Step S4: solution treatment
The finished product Stainless Steel Band in bright continuous annealing furnace, step S3 obtained bright continuous heat treatment in shielding gas.This work in-process Stainless Steel Band is 9～30mpm by the speed of bright continuous annealing furnace, and the Heating temperature of solution treatment is 1020～1145 ℃, and the tapping temperature of solution treatment is below 60 ℃.Shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.
The work in-process rolling belongs to cold-rolling process, and it is the rolling of carrying out under the metal recrystallization temperature, and metal is destroyed and can not produce recrystallize and recover at cold rolling middle crystal grain, causes metal generation grain refining and work hardening.After work hardening acquires a certain degree, just can not proceed rolling, need make it to recover plasticity through softening thermal treatment.Stainless softening thermal treatment is " solution treatment ".Therefore, solution treatment is the work hardening produced when cold rolling in order to eliminate, and improves weave construction and metallographic structure, so that next step rolling; Make steel band obtain suitable grain fineness number, after the assurance solution treatment, the steel band grain size number is more than 11 grades simultaneously.The annealing temperature of solution treatment is high, speed is slow, and bating effect is good.
Step S5: finished product rolling
The work in-process rolling stainless steel band finished product Stainless Steel Band that adopts 20 roller precision cold-rolled units that step S4 is obtained.This 20 roller precision cold-rolled unit adopts the bicone intermediate roll.The rolling load of finished product rolling is 1000～2500KN, and rolling tensile force is 50～120KN, and roll speed is 100-400mpm.After the finished product rolling, the thickness of finished product Stainless Steel Band is 0.05～0.5mm, the thickness deviation of finished product Stainless Steel Band is ± 0.003～± 0.008mm, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
The purpose of finished product rolling is to guarantee working modulus and thickness.Product hardness is determined by working modulus and material.Stainless steel has work hardening, and the larger hardness of working modulus is higher, think that obtaining certain hardness wants the controlled working rate, namely controls the thickness of centre product.
After solution treatment, steel band becomes soft state, so, need less rolling tensile force, otherwise easily drawing down, break.
Step S6: finished product Stainless Steel Band skimming treatment
Owing to adopting mineral oil cooling, lubricated in the finished product operation of rolling, therefore roll and will the finished product Stainless Steel Band be cleaned up by skimming treatment.
The finished product Stainless Steel Band that adopts alkaline defatting agent that step S5 is obtained is cleaned at 60～80 ℃, removes the grease of finished product stainless steel band surface.
Step S7: hot-drawn is rectified stress relieving and is processed
As shown in Figure 2, be the structural representation that is provided with the stress relief annealing stove of tension levelling device of the present invention.The ingress of stress relief annealing stove 201 and exit are respectively arranged with tension levelling device 202 and the tension levelling device 203 of the template of controlling the finished product Stainless Steel Band.
Align in shielding gas and anneal at the interior finished product Stainless Steel Band that step S7 is obtained of stress relief annealing stove 201, obtain cold rolling hard state Stainless Steel Band.The temperature that the stress relieving processing is rectified in hot-drawn is 500～800 ℃.The tension force of finished product Stainless Steel Band in the stress relief annealing stove is 5～50KN, unit tension 15-40kg/mm
2, speed is 4mpm～30mpm.Shielding gas is nitrogen hydrogen mixeding gas, pure hydrogen gas or pure nitrogen gas.Nitrogen hydrogen mixeding gas is that volume content is 25%N
2and 75%H
2.
Select tension force in this stress relief annealing stove 201 according to as follows: the Main Function of this tension force is to adjust template, eliminates the limit wave, coordinates certain temperature, and in stress relief, the dependence hightension is by the steel band leveling that stretches.Tension force in stress relief annealing stove 201 is determined according to the tensile strength of steel band, the 15-30% that unit tension is tensile strength.
Select this hot-drawn rectify temperature that stress relieving processes according to as follows: the temperature that the stress relieving processing is rectified in this hot-drawn belongs to middle temperature, is also temperature between the stainless steel sensitized zone.Utilize the easy solid solution diffusions such as the inner crystal grain atom of Stainless Steel Band C, N at this temperature, interior tissue produces subtle change, is mainly that martensitic transformation is austenite, and deformation stress is discharged, and reaches the destressing effect.If this temperature is too low, stress relief is slow, and drawing effect is poor; If this excess Temperature, stress relief is effective, but mechanical property is mainly intensity and lower hardness.Very little in the improvement to template below 500 ℃, even unit tension is 30kg/mm
2, process front wave 2.5mm, processing back wave is 2.3mm, with before processing, compare almost unchanged.Although template improves when processing for 850 ℃, mechanical property sharply descends.For example, thickness is 304 Stainless Steel Bands that 0.2mm, hardness are HV420, when the speed in the stress relief annealing stove is 10mpm, hardness drops to HV380, the stability that can't keep its performance, but temperature that stress relieving processes is rectified in this hot-drawn, hardness below 800 ℃ the time can maintain HV410, substantially keeps stability, the consistence of its performance.Therefore the temperature of selecting this hot-drawn to rectify the stress relieving processing is 500～800 ℃, can keep the stable of steel band performance.
Preferably, after step S3 and step S5, carry out the hot-air seasoning processing, the temperature of hot blast is 100-120 ℃, and steel belt operating speed is 15～30mpm.
Embodiment 1
Select 301 Stainless Steel Bands, width is 600mm, and hardness is HV510-540.
The concrete technology step of this embodiment is as follows:
(1) get the raw materials ready
Select the 301 austenitic stainless steel cold-rolled steel strips that thickness is 0.6mm to prepare rolling.
(2) work in-process rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 1500KN and 200KN, roll speed with 150mpm, by 0.6mm, thick stainless steel cold-rolled steel band blank is rolled into the work in-process Stainless Steel Band that thickness is 0.15mm, and the thickness deviation of this work in-process Stainless Steel Band is ± 0.005mm.
(3) work in-process Stainless Steel Band skimming treatment
The grease-removing agent that is 60～80 ℃ by temperature is cleaned the work in-process Stainless Steel Band, removes the grease of work in-process stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(4) solution treatment
The work in-process Stainless Steel Band is passed through to bright annealing oven with the speed of 26mpm in shielding gas, and the Heating temperature in bright annealing oven is 1120 ℃, and the tapping temperature of work in-process Stainless Steel Band is controlled at below 60 ℃.This shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.
(5) finished product rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 2000KN and 100KN, with the roll speed of 150mpm, will become the finished product Stainless Steel Band that thickness is 0.06mm through the work in-process rolling stainless steel band of solution treatment, the thickness deviation of this finished product Stainless Steel Band is ± 0.003mm.The working modulus of this finished product Stainless Steel Band is 60%.The finished product rolling adopts the bicone intermediate roll, and after rolling, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
(6) finished product Stainless Steel Band skimming treatment
The grease-removing agent that is 60～80 ℃ by temperature is cleaned the finished product Stainless Steel Band, removes the grease of finished product stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(7) the stress relieving processing is rectified in hot-drawn
The stress relief annealing stove that finished product steel belt after degreasing is equipped with to the tension levelling device through the entrance and exit place processing that eliminated stress in shielding gas to eliminate the stress of finished product steel belt inside, utilizes hightension to carry out template tension leveling simultaneously.The temperature that the stress relieving processing is rectified in hot-drawn is 680 ℃.This shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.Obtain by this step that template is good, the Stainless Steel Band of stress relieving, the tension force of steel band in stove is 10KN, and unit tension is 27.78kg/mm
2, speed 25mpm.
Cold rolling hard state 301 Stainless Steel Bands that adopt above-mentioned production technique to obtain, the key technical indexes is: the limit wave is less than 1mm, middle wave is less than 0.5mm, and hardness is HV510-530, and the ratio of the tensile strength of steel band vertical and horizontal, yield strength is all in 100 ± 5%.
Embodiment 2
Select 301 Stainless Steel Bands, width is 600mm, hardness HV500-530.
The present invention adopts following processing step
(1) get the raw materials ready
Select the 301 austenitic stainless steel cold-rolled steel strips that thickness is 1.5mm to prepare rolling.
(2) work in-process rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 2500KN and 100KN, roll speed with 100mpm, by 1.5mm, thick stainless steel cold-rolled steel band blank is rolled into the work in-process Stainless Steel Band that thickness is 0.48mm, and the thickness deviation of this work in-process Stainless Steel Band is ± 0.006mm.
(3) work in-process Stainless Steel Band skimming treatment
The grease-removing agent that is 60～80 ℃ by temperature is cleaned the work in-process Stainless Steel Band, removes the grease of finished product stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(4) solution treatment
The work in-process Stainless Steel Band is passed through to bright annealing oven with the speed of 15mpm in shielding gas, and the Heating temperature in bright annealing oven is 1140 ℃, and the tapping temperature of work in-process Stainless Steel Band is controlled at below 60 ℃.This shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.
(5) finished product rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 1000KN and 50KN, with the roll speed of 100mpm, will become the finished product Stainless Steel Band that thickness is 0.2mm through the work in-process rolling stainless steel band of solution treatment, the thickness deviation of this finished product Stainless Steel Band is ± 0.005mm.The working modulus of this finished product Stainless Steel Band is 58.33%.The finished product rolling adopts the bicone intermediate roll, and after rolling, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
(6) finished product Stainless Steel Band skimming treatment
The grease-removing agent that is 60～80 ℃ by temperature is cleaned the finished product Stainless Steel Band, removes the grease of finished product stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(7) the stress relieving processing is rectified in hot-drawn
The stress relief annealing stove that finished product steel belt after degreasing is equipped with to the tension levelling device through the entrance and exit place processing that eliminated stress in shielding gas to eliminate the stress of finished product steel belt inside, utilizes hightension to carry out template tension leveling simultaneously.The temperature that the stress relieving processing is rectified in hot-drawn is 750 ℃.This shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.Obtain by this step that template is good, the Stainless Steel Band of stress relieving, the tension force of steel band in stove is 40KN, and unit tension is 33.33kg/mm
2, speed is 20mpm.
Cold rolling hard state 301 Stainless Steel Bands that adopt above-mentioned production technique to obtain, the key technical indexes is: the limit wave is less than 1.5mm, middle wave is less than 0.7mm, hardness is HV510-530, and the ratio of the tensile strength of steel band vertical and horizontal, yield strength is all in 100 ± 8%.
Select 301 Stainless Steel Bands, width is 600mm, and hardness is HV510-540.
The concrete technology step of this embodiment is as follows:
(1) get the raw materials ready
Select the 301 austenitic stainless steel cold-rolled steel strips that thickness is 0.8mm to prepare rolling.
(2) work in-process rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 3000KN and 150KN, with the roll speed of 300mpm, the stainless steel cold-rolled steel band blank of 0.8mm is rolled into to the work in-process Stainless Steel Band that thickness is 0.15mm, the thickness deviation of this work in-process Stainless Steel Band is ± 0.01mm.
(3) work in-process Stainless Steel Band skimming treatment
The alkaline defatting agent that is 60～80 ℃ by temperature is cleaned the work in-process Stainless Steel Band, removes the grease of work in-process stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(4) solution treatment
The work in-process Stainless Steel Band is passed through to bright annealing oven with the speed of 30mpm in shielding gas, and the Heating temperature in bright annealing oven is 1020 ℃, and the tapping temperature of work in-process Stainless Steel Band is controlled at below 60 ℃.This shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.
(5) finished product rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 2500KN and 120KN, with the roll speed of 400mpm, will become the finished product Stainless Steel Band that thickness is 0.05mm through the work in-process rolling stainless steel band of solution treatment, the thickness deviation of this finished product Stainless Steel Band is ± 0.008mm.The working modulus of this finished product Stainless Steel Band is 66.66%.The finished product rolling adopts the bicone intermediate roll, and after rolling, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
(6) finished product Stainless Steel Band skimming treatment
The grease-removing agent that is 60～80 ℃ by temperature is cleaned the finished product Stainless Steel Band, removes the grease of finished product stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(7) the stress relieving processing is rectified in hot-drawn
The stress relief annealing stove that finished product steel belt after degreasing is equipped with to the tension levelling device through the entrance and exit place processing that eliminated stress in shielding gas to eliminate the stress of finished product steel belt inside, utilizes hightension to carry out template tension leveling simultaneously.The temperature that the stress relieving processing is rectified in hot-drawn is 500 ℃.Shielding gas is pure hydrogen gas.Obtain by this step that template is good, the Stainless Steel Band of stress relieving, the tension force of steel band in stove is 10KN, and unit tension is 33.33kg/mm
2, speed 30mpm.
Cold rolling hard state 301 Stainless Steel Bands that adopt above-mentioned production technique to obtain, the key technical indexes is: the limit wave is less than 1mm, middle wave is less than 0.5mm, and hardness is HV520-550, and the ratio of the tensile strength of steel band vertical and horizontal, yield strength is all in 100 ± 5%.
Embodiment 4
Select 301 Stainless Steel Bands, width is 600mm, hardness HV400-450.
The present invention adopts following processing step
(1) get the raw materials ready
Select the 301 austenitic stainless steel cold-rolled steel strips that thickness is 1.5mm to prepare rolling.
(2) work in-process rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 2000KN and 100KN, with the roll speed of 100mpm, the stainless steel cold-rolled steel band blank of 1.5mm is rolled into to the work in-process Stainless Steel Band that thickness is 0.75mm, the thickness deviation of this work in-process Stainless Steel Band is ± 0.007mm.
(3) work in-process Stainless Steel Band skimming treatment
The alkaline defatting agent that is 60～80 ℃ by temperature is cleaned the work in-process Stainless Steel Band, removes the grease of finished product stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
Carry out the hot-air seasoning processing after the skimming treatment of work in-process Stainless Steel Band, the temperature of hot blast is 100-120 ℃, and steel belt operating speed is 15～30 m/mins.
(4) solution treatment
The work in-process Stainless Steel Band is passed through to bright annealing oven with the speed of 9mpm in shielding gas, and the Heating temperature in bright annealing oven is 1145 ℃, and the tapping temperature of work in-process Stainless Steel Band is controlled at below 60 ℃.This shielding gas is the N that volume content is 25%
2with 75% H
2mixed gas.
(5) finished product rolling
Adopt 20 roller precision cold-rolled units, under the rolling tensile force of the rolling load of 1000KN and 50KN, with the roll speed of 100mpm, will become the finished product Stainless Steel Band that thickness is 0.5mm through the work in-process rolling stainless steel band of solution treatment, the thickness deviation of this finished product Stainless Steel Band is ± 0.005mm.The working modulus of this finished product Stainless Steel Band is 33.33%.The finished product rolling adopts the bicone intermediate roll, and after rolling, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
Carry out the hot-air seasoning processing after the finished product rolling, the temperature of hot blast is 100-120 ℃, and steel belt operating speed is 15～30 m/mins.
(6) finished product Stainless Steel Band skimming treatment
The grease-removing agent that is 60～80 ℃ by temperature is cleaned the finished product Stainless Steel Band, removes the grease of finished product stainless steel band surface.In the present embodiment, grease-removing agent is alkaline defatting agent, and the main component of this alkaline defatting agent is KOH.
(7) the stress relieving processing is rectified in hot-drawn
The stress relief annealing stove that finished product steel belt after degreasing is equipped with to the tension levelling device through the entrance and exit place processing that eliminated stress in shielding gas to eliminate the stress of finished product steel belt inside, utilizes hightension to carry out template tension leveling simultaneously.The temperature that the stress relieving processing is rectified in hot-drawn is 800 ℃.Shielding gas is pure nitrogen gas.Obtain by this step that template is good, the Stainless Steel Band of stress relieving, the tension force of steel band in stove is 50KN, and unit tension is 16.67kg/mm
2, speed is 4mpm.
Cold rolling hard state 301 Stainless Steel Bands that adopt above-mentioned production technique to obtain, the key technical indexes is: the limit wave is less than 1.5mm, middle wave is less than 0.7mm, hardness is HV410-450, and the ratio of the tensile strength of steel band vertical and horizontal, yield strength is all in 100 ± 4%.
Claims (10)
1. the production technique of a cold rolling hard state Stainless Steel Band, is characterized in that, comprises the strong stress relieving processing of hot-drawn, and this process comprises:
In the stress annealing stove, the finished product Stainless Steel Band is aligned in shielding gas and anneal, obtained described cold rolling hard state Stainless Steel Band.
2. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 1, it is characterized in that: the temperature that the stress relieving processing is rectified in described hot-drawn is 500～800 ℃, the tension force of described finished product Stainless Steel Band in described stress relief annealing stove is 10～50KN, and unit tension is 16-34kg/mm
2, speed is 4 m/mins～30 m/mins, the shielding gas that the stress relieving processing is rectified in described hot-drawn is nitrogen hydrogen mixeding gas, pure hydrogen gas or pure nitrogen gas; Described nitrogen hydrogen mixeding gas is the hydrogen that the volume content nitrogen that is 25% and volume content are 75%.
3. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 2 is characterized in that: the ingress of described stress relief annealing stove and exit are provided with the tension levelling device of the template of controlling described finished product Stainless Steel Band.
4. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 1, is characterized in that, described hot-drawn also comprises before rectifying the stress relieving processing:
Get the raw materials ready: the stainless steel cold-rolled steel band welding band-leading is obtained to the stainless steel cold-rolled steel band blank;
Work in-process rolling: be the work in-process Stainless Steel Band by the rolling of described stainless steel cold-rolled steel band blank;
Work in-process Stainless Steel Band skimming treatment: described work in-process Stainless Steel Band is cleaned, remove the grease of described work in-process stainless steel band surface;
Solution treatment: by described work in-process Stainless Steel Band bright continuous heat treatment in shielding gas;
Finished product rolling: be the finished product Stainless Steel Band by described work in-process rolling stainless steel band;
Finished product Stainless Steel Band skimming treatment: described finished product Stainless Steel Band is cleaned, remove the grease of described finished product stainless steel band surface.
5. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 4, it is characterized in that: also comprise, carry out respectively the hot-air seasoning processing after the skimming treatment of described work in-process Stainless Steel Band and described finished product rolling, the temperature of hot blast is 100-120 ℃, and steel belt operating speed is 15～30 m/mins.
6. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 4 is characterized in that: the thickness of the described described stainless steel cold-rolled steel band that obtains of getting the raw materials ready is 0.6～1.5mm.
7. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 4 is characterized in that: the equipment that described work in-process rolling adopts is 20 roller precision cold-rolled units;
The rolling load adopted in the described work in-process operation of rolling is 1500～3000KN, and rolling tensile force is 100～200KN, and roll speed is 100～300mpm, and the thickness of described work in-process Stainless Steel Band is 0.15～0.75mm.
8. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 4, it is characterized in that: the temperature of the skimming treatment of described work in-process Stainless Steel Band and the skimming treatment of described finished product Stainless Steel Band is 60～80 ℃.
9. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 4; it is characterized in that: the equipment that described solution treatment adopts is bright continuous annealing furnace; described work in-process Stainless Steel Band is 9～30mpm by the speed of described bright continuous annealing furnace; the Heating temperature of described solution treatment is 1020～1145 ℃; the tapping temperature of described solution treatment is below 60 ℃, and the shielding gas of described solution treatment is that volume content is the mixed gas that 25% nitrogen and the volume content hydrogen that is 75% forms.
10. the production technique of cold rolling hard state Stainless Steel Band as claimed in claim 4, it is characterized in that: the equipment that described finished product rolling adopts is 20 roller precision cold-rolled units, described finished product rolling adopts the bicone intermediate roll, the rolling load of described finished product rolling is 1000～2500KN, rolling tensile force is 50～120KN, and roll speed is 100-400mpm, and the thickness of described finished product Stainless Steel Band is 0.05～0.5mm, after described finished product rolling, template limit wave highly is less than 3mm, and anxious high degree is less than 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310413492.2A CN103484639B (en) | 2013-09-11 | 2013-09-11 | The production technology of cold rolling hard state stainless steel band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310413492.2A CN103484639B (en) | 2013-09-11 | 2013-09-11 | The production technology of cold rolling hard state stainless steel band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103484639A true CN103484639A (en) | 2014-01-01 |
| CN103484639B CN103484639B (en) | 2016-08-10 |
Family
ID=49825228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310413492.2A Active CN103484639B (en) | 2013-09-11 | 2013-09-11 | The production technology of cold rolling hard state stainless steel band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103484639B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209320A (en) * | 2014-08-27 | 2014-12-17 | 无锡市华牧机械有限公司 | Cold rolling method for stainless steel band |
| CN106854688A (en) * | 2017-03-13 | 2017-06-16 | 北京科技大学 | A kind of Technology for Heating Processing of the cold rolling 410 stainless steel band mechanical property of control |
| CN107043846A (en) * | 2017-02-22 | 2017-08-15 | 广东鑫发精密金属科技有限公司 | A kind of production method of ultra-fine grain stainless steel cold-rolled steel band |
| CN107988570A (en) * | 2017-11-30 | 2018-05-04 | 中铝洛阳铜加工有限公司 | A kind of copper alloy plate strip paper tinsel low temperature destressing stretcher leveling technique |
| CN108246827A (en) * | 2018-01-16 | 2018-07-06 | 浙江甬金金属科技股份有限公司 | The production method of the special ferritic stainless steel band of Mobile phone vibration motor |
| CN110066910A (en) * | 2019-04-18 | 2019-07-30 | 首钢京唐钢铁联合有限责任公司 | A kind of processing method of super-high strength steel chill volume |
| CN110229951A (en) * | 2019-07-29 | 2019-09-13 | 湖南力方轧辊有限公司 | A kind of cold-rolling stainless steel online annealing equipment and technique |
| CN111957741A (en) * | 2020-08-07 | 2020-11-20 | 无锡华生精密材料股份有限公司 | Production method of shoe sole material for outdoor sports |
| CN112404147A (en) * | 2020-11-09 | 2021-02-26 | 江苏苏讯新材料科技股份有限公司 | Waste judgment and repair process in production process of stainless steel strip |
| CN112553451A (en) * | 2020-12-02 | 2021-03-26 | 江苏呈飞新材料科技有限公司 | Continuous stress relief annealing process for cold-rolled stainless steel strip |
| CN113403461A (en) * | 2021-06-25 | 2021-09-17 | 宝钢德盛不锈钢有限公司 | Manufacturing process and product of high-hardness hardware stainless steel |
| CN114074119A (en) * | 2021-11-18 | 2022-02-22 | 东北大学 | Method for predicting work roll surface roughness attenuation through rolling process parameter change |
| CN114505342A (en) * | 2022-03-04 | 2022-05-17 | 江苏省沙钢钢铁研究院有限公司 | Method for improving yield of cold-rolled steel strip |
| CN115161454A (en) * | 2022-07-20 | 2022-10-11 | 山西太钢不锈钢精密带钢有限公司 | Production method of hard austenitic stainless precision strip steel |
| CN116441312A (en) * | 2023-04-14 | 2023-07-18 | 江苏贯森新材料科技有限公司 | Production process of cold-rolled hard stainless steel strip |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719639A (en) * | 2012-07-10 | 2012-10-10 | 冶科金属有限公司 | Method for producing stainless steel strip with high hardness |
-
2013
- 2013-09-11 CN CN201310413492.2A patent/CN103484639B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719639A (en) * | 2012-07-10 | 2012-10-10 | 冶科金属有限公司 | Method for producing stainless steel strip with high hardness |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209320A (en) * | 2014-08-27 | 2014-12-17 | 无锡市华牧机械有限公司 | Cold rolling method for stainless steel band |
| CN107043846A (en) * | 2017-02-22 | 2017-08-15 | 广东鑫发精密金属科技有限公司 | A kind of production method of ultra-fine grain stainless steel cold-rolled steel band |
| CN106854688A (en) * | 2017-03-13 | 2017-06-16 | 北京科技大学 | A kind of Technology for Heating Processing of the cold rolling 410 stainless steel band mechanical property of control |
| CN106854688B (en) * | 2017-03-13 | 2019-07-05 | 北京科技大学 | A kind of heat treatment process controlling 410 stainless steel band mechanical property of cold rolling |
| CN107988570A (en) * | 2017-11-30 | 2018-05-04 | 中铝洛阳铜加工有限公司 | A kind of copper alloy plate strip paper tinsel low temperature destressing stretcher leveling technique |
| CN108246827A (en) * | 2018-01-16 | 2018-07-06 | 浙江甬金金属科技股份有限公司 | The production method of the special ferritic stainless steel band of Mobile phone vibration motor |
| CN110066910A (en) * | 2019-04-18 | 2019-07-30 | 首钢京唐钢铁联合有限责任公司 | A kind of processing method of super-high strength steel chill volume |
| CN110229951A (en) * | 2019-07-29 | 2019-09-13 | 湖南力方轧辊有限公司 | A kind of cold-rolling stainless steel online annealing equipment and technique |
| CN111957741A (en) * | 2020-08-07 | 2020-11-20 | 无锡华生精密材料股份有限公司 | Production method of shoe sole material for outdoor sports |
| CN112404147A (en) * | 2020-11-09 | 2021-02-26 | 江苏苏讯新材料科技股份有限公司 | Waste judgment and repair process in production process of stainless steel strip |
| CN112553451A (en) * | 2020-12-02 | 2021-03-26 | 江苏呈飞新材料科技有限公司 | Continuous stress relief annealing process for cold-rolled stainless steel strip |
| CN113403461A (en) * | 2021-06-25 | 2021-09-17 | 宝钢德盛不锈钢有限公司 | Manufacturing process and product of high-hardness hardware stainless steel |
| CN113403461B (en) * | 2021-06-25 | 2023-02-28 | 宝钢德盛不锈钢有限公司 | Manufacturing process and product of high-hardness hardware stainless steel |
| CN114074119A (en) * | 2021-11-18 | 2022-02-22 | 东北大学 | Method for predicting work roll surface roughness attenuation through rolling process parameter change |
| CN114505342A (en) * | 2022-03-04 | 2022-05-17 | 江苏省沙钢钢铁研究院有限公司 | Method for improving yield of cold-rolled steel strip |
| CN115161454A (en) * | 2022-07-20 | 2022-10-11 | 山西太钢不锈钢精密带钢有限公司 | Production method of hard austenitic stainless precision strip steel |
| CN115161454B (en) * | 2022-07-20 | 2023-07-21 | 山西太钢不锈钢精密带钢有限公司 | Production method of hard austenitic stainless precision belt steel |
| CN116441312A (en) * | 2023-04-14 | 2023-07-18 | 江苏贯森新材料科技有限公司 | Production process of cold-rolled hard stainless steel strip |
| CN116441312B (en) * | 2023-04-14 | 2023-11-10 | 江苏贯森新材料科技有限公司 | Production process of cold-rolled hard stainless steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103484639B (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103484639A (en) | Production technology of cold-rolled hard stainless steel bands | |
| JP4894855B2 (en) | Seamless pipe manufacturing method | |
| CN101947549A (en) | Production technology for inhibiting nickel-saving austenitic stainless steel hot-rolled plate edge crack | |
| CN105087881B (en) | 304 stainless steel annealing methods | |
| CN104762559B (en) | Method for producing steel plate for hydrogen-contacting equipment | |
| CN102943215A (en) | Backing material for double metal composite saw blade, and preparation method thereof | |
| CN102492813B (en) | Production technology of stainless steel band for weaving reed | |
| CN105734403B (en) | A kind of steel saw blade hot-rolled coil and its production method | |
| CN106906428A (en) | A kind of conveyer belt hard state austenitic stainless steel and its manufacture method and application | |
| JP2016516590A (en) | Method for manufacturing a metal strip | |
| CN108441615A (en) | A kind of hardening and tempering method of 12Cr13 stainless steel bars | |
| CN105239001B (en) | Cold-rolled steel sheet for oil heater and preparation method thereof | |
| CN102251250B (en) | Rolling method for pickling line thermal annealing of low-chromium 400 series stainless steel | |
| CN107142393A (en) | A kind of low stress copper chromium titanium silicon band and preparation method thereof | |
| CN109487160A (en) | A kind of novel semi high speed steel cold-rolling intermediate roll and preparation method thereof | |
| CN105925889A (en) | Ultrathick specification 1.2311 mold steel plate and preparation method thereof | |
| CN109518079A (en) | A kind of production method of hydrogen-contacting equipment 15CrMoR steel plate | |
| CN104745787B (en) | Production method of tool steel capable of being directly cold rolled | |
| CN103695816A (en) | Preparation method of metal composite plate | |
| CN111054747B (en) | Cold rolling production method of high-strength austenitic stainless steel strip for decoration | |
| CN110153199A (en) | A kind of controlled rolling method of large scale rod bar | |
| CN110157979A (en) | A kind of milling method improving plate surface quality | |
| CN110860558B (en) | Rolling method of ultra-wide and ultra-thick steel containment nuclear power steel | |
| CN103468911B (en) | Production process of austenite stainless steel belt | |
| CN113667892A (en) | Economical low-temperature continuous annealing cold-rolled high-strength steel strip and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 271200 Shandong city of Xintai province Tai'an City Xindong town new road three Applicant after: Shandong Energy Group Qianyuan Stainless Steel Manufacturing Co., Ltd, Address before: Tai'an City, Shandong Province town of 271222 east of Xintai new road three Applicant before: Shandong Energy Machinery Group Qianyuan Stainless Steel Manufacturing Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 271222 TAIAN, SHANDONG PROVINCE TO: 271200 TAIAN, SHANDONG PROVINCE |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |