阅读说明：本技术 滚压法制备波纹管的辊压轮 (Rolling wheel for preparing corrugated pipe by rolling method ) 是由 石孝永 于 2018-07-03 设计创作，主要内容包括：本发明涉及滚压法制备波纹管的辊压轮。辊压轮的材质为铝青铜,其原料成分及质量百分含量为铝Al 10~13%,Fe 3~5%,Mn 1.2~2%,Co 0.8~1.2%,余量为铜；按照上述原料成分及质量配料、熔炼、铸锭、下料；其铸锭热锻：下料加热920℃,热锻至Φ220*20mm；热处理：900℃,保温40分钟水冷却；时效：450℃保温2小时；辊压轮性能布氏硬度HB≥200 N/mm<Sup>2</Sup>。由于铝青铜辊压轮与钢的摩擦系数比较小,硬度比钢小,经过热处理后硬度布氏硬度HB≥200 N/mm<Sup>2</Sup>,可以满足滚压轮的使用要求,即不能划伤板料,滚轮也不能被挤变形。(The invention relates to a rolling wheel for preparing a corrugated pipe by a rolling method, which is made of aluminum bronze, comprises the following raw material components of 10 mass percent of aluminum Al 10 ~ 13%, 3 mass percent of Fe 3 ~ 5%, 1.2 mass percent of Mn 1.2 ~ 2%, 0.8 mass percent of Co 0.8 ~ 1.2.2% and the balance of copper, and is prepared by proportioning, smelting, casting and blanking according to the raw material components and the mass percent, wherein the casting is subjected to hot forging, namely blanking is heated to 920 ℃ and hot forging to phi 220 and 20mm, the heat treatment is carried out at 900 ℃ and is carried out for 40 minutes of water cooling, the aging is carried out at 450 ℃ for 2 hours, and the Brinell hardness HB of the rolling wheel is more than or equal to 200N 2 . Because the friction coefficient of the aluminum bronze rolling wheel and the steel is smaller, the hardness is smaller than that of the steel, and the Brinell hardness HB of the aluminum bronze rolling wheel is more than or equal to 200N/mm after heat treatment 2 Can meet the use requirements of rolling wheels, namely, the plate can not be scratched, and the roller can not be usedCan be extruded and deformed.)

1. The rolling wheel of the corrugated pipe is prepared by a rolling method, the rolling wheel is made of aluminum bronze, and the rolling wheel comprises the following raw materials of, by mass, 10% of aluminum Al 10 ~ 13%, 3% of Fe 3 ~ 5%, 1.2% of Mn 1.2 ~ 2%, 0.8% of Co 0.8 ~ 1.2.2%, and the balance of copper;

proportioning, smelting, casting ingot and blanking according to the components and the quality of the raw materials;

hot forging of cast ingot: blanking and heating to 920 ℃, and hot forging to phi 220 x 20 mm;

and (3) heat treatment: preserving heat for 40 minutes at 900 ℃, and cooling with water;

aging: keeping the temperature at 450 ℃ for 2 hours;

the property Brinell hardness HB of the roller is more than or equal to 200N/mm²。

Technical Field

The invention relates to the technical field of corrugated pipe preparation by a rolling method, in particular to a rolling wheel for preparing a corrugated pipe by the rolling method.

Background

The corrugated pipe is a part for damping vibration and preventing vibration transmission in an equipment system and is formed by rolling a thin stainless steel plate winding drum, and in the rolling process, a rolling wheel and the stainless steel plate rub to cause scratch of the stainless steel plate, so that the performance of a product and the smoothness of the damaged surface are influenced.

Disclosure of Invention

The invention aims to solve the problems, and the rolling wheel for preparing the corrugated pipe by using the new material is used, and the rolling wheel is manufactured in the process of preparing the corrugated pipe by a rolling method, so that a workpiece is not scratched.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the rolling wheel of the corrugated pipe is prepared by a rolling method, the rolling wheel is made of aluminum bronze, and the rolling wheel comprises the following raw materials of, by mass, 10% of aluminum Al 10 ~ 13%, 3% of Fe 3 ~ 5%, 1.2% of Mn 1.2 ~ 2%, 0.8% of Co 0.8 ~ 1.2.2%, and the balance of copper;

proportioning, smelting, casting ingot and blanking according to the components and the quality of the raw materials;

hot forging of cast ingot: blanking and heating to 920 ℃, and hot forging to phi 220 x 20 mm;

and (3) heat treatment: preserving heat for 40 minutes at 900 ℃, and cooling with water;

aging: keeping the temperature at 450 ℃ for 2 hours;

the property Brinell hardness HB of the roller is more than or equal to 200N/mm²。

Compared with the prior art, the invention has the following beneficial effects:

because the friction coefficient of the aluminum bronze rolling wheel and the steel is smaller, the hardness is smaller than that of the steel, and the Brinell hardness HB of the aluminum bronze rolling wheel is more than or equal to 200N/mm after heat treatment²The use requirements of the rolling wheel can be met, namely, the plate cannot be scratched, and the roller cannot be extruded and deformed.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention and to clearly and unequivocally define the scope of the present invention.

(1) The production process comprises the following steps: the method comprises the following steps of preparing 18kg of Al, 6kg of Fe, 2.1 kg of Mn, 1.5kg of Co and 122.4kg of Cu, feeding 150 kg of raw materials, and smelting in an intermediate frequency furnace;

(2) power transmission smelting and ingot casting of the intermediate frequency furnace:

and (3) analyzing the components, wherein the mass percentages of the components are as follows: 11.3% of Al, 3.4% of Fe, 0.9% of Co and 1.2% of Mn;

(3) blanking and forging: heating to 900 deg.C, and forging to obtain blank with diameter of 230 x 20mm

Hot forging, three dun and three Dial

Forging the blank size: phi 230 x 20mm

(4) And (3) heat treatment:

solid solution: putting the materials into a heating electric furnace, heating to 900 ℃, preserving heat for 40 minutes, and cooling by water;

aging and removing stress, and placing the mixture into an electric furnace to heat at 450 ℃ and keep the temperature for 2 hours;

and (3) detecting the hardness: the Brinell hardness HB is more than or equal to 220N/mm²。

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, that the preferred embodiments of the present invention are described above and the present invention is not limited to the preferred embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the present invention and these changes and modifications are within the scope of the invention as claimed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.