Stainless steel plate matte surface treatment method and manufacturing method of special roller thereof

[0030](Example 1)

[0031]The stainless steel sheet sub-surface treatment method of the present embodiment includes the following steps:

[0032]Step 1, produce a special roll for stainless steel sheet matt surface treatment, and specifically includes the following steps:

[0033]Step 1.1, select the titanium alloy roll, the first high-speed steel roll and the second high speed steel roll, and the high-speed steel roll and the hardness of 67 to 69 hrc are selected from the group consisting of 62 to 64 HRC.

[0034]Step 1.2, partition the titanium alloy roll, the first high speed steel roll and the second high speed steel roll, the high-speed steel roller is ground to the roughness of 0.10 to 0.15 um, surface requirements: no twill, spiral, grinding wheel traces, scratches; The titanium alloy roller is ground to a roughness of 0.12 to 0.15 um, a surface requirement: No twill, spiral, grinding wheel traces, scratches.

[0035]Step 1.3, for the polishing of the titanium alloy roll, the first high-speed steel roll and the second high speed steel roll each perform polishing treatment, before polishing, in the titanium alloy roll, first high speed steel roll and the second high speed steel roll 3000 Applying diamond diamonds, and adding red Dan powder in diamond diamond abrasive cream, effectively changing the color of the surface of the roll; the diamond strap of the roughness is 8.5 to 9.5 um is used to the first high-speed steel roll and the second high speed steel roll. Performing polishing, diamond sand band vibration frequency is 25 ~ 29, speed of 2.5 m / min, tension is 0.03MPa, the head frame is 520 rpm, 30 round-trip polishing, polished to the roughness of 0.08 ~ 0.1 um; a diamond strap of 5.5 to 6.5 um is polished by a diamond strap of 5.5 to 6.5 um, and the diamond shaped zone is 24 to 26, the speed is 2m / min, the tension is 0.03MPa, the head frame The rotational speed is 580 rpm, and 50 round-trip polishing, polished to a roughness of 0.06 to 0.08 um; polishing the titanium alloy roll, the first high-speed steel roll and the second high-speed steel roller by using a diamond strap, can be effectively Improve polishing efficiency, so that the surface of the roll is uniform.

[0036]Step 1.4, separately sand blasting for the polished titanium alloy roll, the first high-speed steel roll and the second high speed steel roller, respectively, and alumina having a particle size of 115 to 125, sand blasting 475 ~ 485 seconds of the first high speed steel roll, The blasting air pressure is 3.6MPa, sandblasting to a roughness of 0.7 to 0.8 um; alumina with a particle size of 215 to 225 to sand blast 395 ~ 405 seconds, sand blasting air pressure is 2.4MPa, sandblasting to The roughness is 0.2 ~ 0.25 um; alumina with a particle size of 315 to 325 is sandblasted 315 ~ 325 seconds, the sand blasting pressure is 2.0 MPa, sand blasting to a roughness of 0.1 to 0.15 um; small particle size is small The grain is sandblasted to the titanium alloy roll, the first high-speed steel roll, and the second high-speed steel roll, which can effectively make the surface more uniform and lower.

[0037]Step 2, using the first high speed steel roller to carry out the first rolling of the stainless steel plate, the pressure reduction rate is 16.7%, and the viscosity is added to the inlet and the outlet of 15 ± 1 mm.2The rolling oil of / s, effective lubrication roll and stainless steel plate, provides a stable friction interface, achieving stable rolling, improving the surface quality, and rolling oil can also take away the deformed heat and frictional heat of the stainless steel plate, adjust the surface temperature of the roll surface , Controllable type.

[0038]Step 3, using the second high speed steel roll to the stainless steel plate for the second secondary rolling, the pressure loss is 12%, when rolled, add viscosity at the inlet and outlet to 15 ± 1 mm2Rolling oil of / s.

[0039]Step 4, using the titanium alloy roller to carry out the third rolling of the stainless steel plate, the pressure reduction rate is 11.8%, and the viscosity is 30 ± 1 mm when rolling.2The rolling oil of / S is sprayed at the atomizer atomizer at the third inlet, and the rear rolling oil after atomization can further reduce the deformed heat and frictional heat of the stainless steel plate, adjust the surface temperature of the roll, and the control plate type. .

[0040]Step 5, the stainless steel plate of the matte surface can be obtained after three rolling.

[0041]The present embodiment is ground, polished, sand blast treatment to high-speed steel rolls and titanium alloy rolls, resulting in three different rough roughness dedicated to the treatment of stainless steel sheet mats, using the roll made of stainless steel plate using the above method. Processing, compared to chemical method, more secure, non-toxic and non-polluting, compared to conventional rolls, with a more effective rolling surface, effectively improve the matt effect of the surface of the rolled stainless steel sheet.