A production method of stainless steel bands for air injection steel reeds
A technology of stainless steel strip and production method, applied in metal rolling, rolling mill control device, metal rolling and other directions, can solve the problems of difficult to control the hardness of steel strip, large hardness range, poor surface quality, etc. Small range, long life effect
Inactive Publication Date: 2009-03-04
无锡华生精密材料股份有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] First, because the traditional production method only has several steps of preliminary rolling, intermediate annealing, finished cold rolling and quenching and tempering, it is difficult to control the hardness of the steel strip produced, and the hardness range is large, and it can only be controlled at Rockwell hardness HRC42 ~48, equivalent to Vickers hardness HV413~480, therefore, in the process of making air-jet reed, it is easy to deform, easy to break, low utilization rate and high production cost;
[0004] The second is that in the traditional production method, the steel strip blanks used are 65Mn and other grades of steel strips, and the metallographic structure of 65Mn and other grades of steel strips is sorbite or troostite, and the strength is low, so they cannot be used for rolling. Reed strips with a thickness of less than 0.3mm are limited in scope of application;
[0005] The third is that in the traditional production method, the steel strip blanks used are 65Mn and other grades of steel strips, and the steel strips of 65Mn and other grades are easily corroded under high-temperature and high-speed airflow
Therefore, the reed steel belt produced by the traditional method is reprocessed into an air-jet reed, not only the quality is difficult to guarantee, but also the service life is not long;
[0006] Fourth, due to the traditional production method, four-roll mills are used for preliminary rolling, and the thickness tolerance can only be controlled within ±0.02-±0.03mm, which makes the thickness accuracy low, and it is difficult to guarantee the same strip difference;
[0007] Fifth, due to the traditional production method, the quenching and tempering process is adopted without stretching and straightening process, and the flatness of the rolled reed steel strip is low, which can only be controlled to be equal to or less than 5mm;
[0008] Sixth, because the traditional production method only has several steps of preliminary rolling, intermediate annealing, finished product cold rolling and quenching and tempering, the surface roughness Ra of the rolled reed steel strip can only be controlled at 0.4-0.8 μm, and the surface quality poor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] first embodiment
[0034] Prepare the material first, and select the 1Cr17Ni7 stainless steel cold-rolled steel strip blank with a thickness of 1.0mm for use.
[0035] Then, semi-finished product rolling is performed. Using a 14-high precision cold rolling unit, under a rolling force of 100KN and a rolling tension of 5KN, at a rolling speed of 60m / min, the 1.0mm thick stainless steel cold-rolled steel strip billet is rolled to a thickness of 0.32mm The semi-finished stainless steel strip, the thickness tolerance of the semi-finished stainless steel strip is -0.01mm.
[0036] After that, solution treatment is performed. Continuous hydrogen-injected bright annealing furnace is used, and the semi-finished stainless steel strip passes through the furnace at a furnace temperature of 1020°C at a speed of 12m / min, and the semi-finished stainless steel strip is filled with protective gas in the furnace to cool, so that the furnace temperature is controlled at room temperature...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| surface smoothness | aaaaa | aaaaa |
| surface roughness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for producing a kind of stainless steel which is used for jet norm. It manufactures with cold-rolled stainless steel strip with a thickness of 1.0~1.5mm to achieve the stainless steel through semi-finished billets rolling, solution treatment, finished rolling, skim handling, degreasing and drying, straightening, and tensile stress annealing.
Description
technical field [0001] The invention relates to a method for producing a steel strip. Specifically, it is a production method for processing stainless steel strips for air-jet reeds on air-jet textile machines. Background technique [0002] It is known in the textile machine manufacturing industry that the air-jet reed is the core component of the air-jet textile machine, and the stainless steel belt for the air-jet reed is the key to making the air-jet reed. Traditional air-jet steel reeds are all made of 65Mn and other grades of steel strips that are sequentially processed by a four-roll cold rolling mill for preliminary rolling, intermediate annealing, finished cold rolling, and quenching and tempering. Although adopting this method can produce the steel band that air-jet reed is used. But there are following problems: [0003] First, because the traditional production method only has several steps of preliminary rolling, intermediate annealing, finished cold rolling a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityPatents(China)
IPC IPC(8): C21D8/02C21D1/26C21D1/74C23G1/00B21B1/38B21B37/00
Inventor芮浩清余叙斌
Owner无锡华生精密材料股份有限公司