阅读说明：本技术 加工余量少的金属密封环垫制作方法 (Method for manufacturing metal sealing ring gasket with small machining allowance ) 是由 胡秉义 李英兵 张勇 于 2021-07-06 设计创作，主要内容包括：一种加工余量少的金属密封环垫制作方法,准备好整体式的金属圆环胚体,并将其均匀加热至可热塑加工状态,再不断整形,使其规格尺寸与要求的环形尺寸相适应,然后使用硬质压模对金属圆环胚体进行压力塑形,得到断面形状是八角形制或椭圆形制的半成品环体,再进行热处理产生合适的金相组织后,根据需要的尺寸参数,对半成品环体进行机加工,得到金属密封环垫成品。本发明获得的半成品环体的尺寸余量小,和实际需要的尺寸参数接近,使后续机加工的工作量明显减小,不仅省时省力,提高加工效率和成品率,而且原材料的浪费非常少,环保节能,成本明显降低。(A method for manufacturing a metal sealing ring pad with less machining allowance comprises the steps of preparing an integral metal ring blank, uniformly heating the integral metal ring blank to a thermoplasticity machining state, continuously shaping to enable the specification size of the integral metal ring blank to be matched with the required annular size, then performing pressure shaping on the metal ring blank by using a hard pressing die to obtain a semi-finished ring body with an octagonal or oval cross-section shape, performing heat treatment to generate a proper metallographic structure, and then machining the semi-finished ring body according to required size parameters to obtain a finished metal sealing ring pad. The size allowance of the semi-finished product ring body obtained by the invention is small and is close to the actually required size parameter, so that the workload of subsequent machining is obviously reduced, time and labor are saved, the machining efficiency and the yield are improved, the waste of raw materials is very little, the environment is protected, the energy is saved, and the cost is obviously reduced.)

1. A method for manufacturing a metal sealing ring gasket with less machining allowance is to machine a metal ring blank into the sealing ring gasket, and is characterized by comprising the following steps:

(a) preparing an integral metal ring blank (1), and uniformly heating the metal ring blank (1) to a thermoplasticity processing state;

(b) continuously shaping the metal ring blank (1) which can be subjected to thermoplastic processing to ensure that the specification size of the metal ring blank (1) is adapted to the required annular size;

(c) keeping the thermoplasticity processing state of the metal circular ring blank (1), and performing pressure shaping on the metal circular ring blank (1) by using a hard pressing die to obtain a semi-finished ring body (2) with an octagonal or oval cross section;

(d) carrying out heat treatment on the semi-finished product ring body (2) to generate a proper metallographic structure;

(e) and machining the semi-finished ring body (2) according to the required size parameters to obtain a finished metal sealing ring gasket.

2. The method of manufacturing a metal seal ring with a small allowance according to claim 1, wherein: in the step (c), the press-molding of the metal ring blank (1) may be performed in stages.

The technical field is as follows: the invention relates to a manufacturing method for manufacturing an integral metal sealing ring gasket.

Background art: the integral metal sealing ring gasket does not need to be spliced, can adapt to the sealing requirements of various strict working conditions, and is more and more widely applied. The general processing method of the integral metal sealing ring gasket is to prepare an integral metal ring blank, shape and heat treat the integral metal ring blank, and then machine the integral metal ring blank to obtain a finished product. However, the sectional shape of the metal ring blank is generally rectangular, and the sectional shape of the metal sealing ring gasket finished product is generally octagonal or elliptical, so that the size margin of the ring blank is relatively large, the workload of subsequent machining is increased, the labor and time are wasted, the machining efficiency is reduced, the raw material is wasted, and the cost is greatly increased if special metal materials are adopted.

The invention content is as follows: aiming at the defects of the prior art, the invention provides the manufacturing method of the metal sealing ring gasket, which has high processing efficiency and less wasted processing allowance.

The method of the invention is to process the metal ring blank into the sealing ring gasket according to the following steps:

(a) preparing an integral metal ring blank, and uniformly heating the metal ring blank to a thermoplasticity processing state;

(b) continuously shaping the metal ring blank which can be subjected to thermoplastic processing to ensure that the specification size of the metal ring blank is adapted to the required annular size;

(c) keeping the thermoplasticity processing state of the metal circular ring blank, and performing pressure shaping on the metal circular ring blank by using a hard pressing die to obtain a semi-finished ring body with an octagonal or oval cross section;

(d) carrying out heat treatment on the semi-finished product ring body to generate a proper metallographic structure;

(e) and machining the semi-finished product ring body according to the required size parameters to obtain a finished metal sealing ring gasket.

If the diameter of the ring is larger, the metal ring blank can be processed in a segmented manner during the step (c) of pressure molding, so that the processing is more convenient.

In the process of manufacturing the metal sealing ring gasket, the section shape of the semi-finished product ring body is processed into an octagonal shape or an elliptical shape and is close to the section shape of the finished product, so that the size allowance of the obtained semi-finished product ring body is small and close to the actually required size parameter, the workload of subsequent machining is obviously reduced, time and labor are saved, the machining efficiency and the yield are improved, the waste of raw materials is very little, the environment is protected, the energy is saved, and the cost is obviously reduced.

The invention is further described with reference to the following figures and detailed description.

Description of the drawings: fig. 1 is a main schematic view of a metal ring blank.

Fig. 2 is an enlarged schematic view of the sectional shape of fig. 1.

Fig. 3 is a main schematic view of the semi-finished ring body.

Fig. 4 is an enlarged schematic view of the sectional shape of fig. 3.

Fig. 5 is another schematic view of fig. 4.

The specific implementation mode is as follows: the method of the invention is to process the metal ring blank 1 into the sealing ring gasket, and the specific method is carried out according to the following steps:

(a) preparing an integral metal ring blank 1, and uniformly heating the metal ring blank 1 to a thermoplasticity processing state;

(b) continuously shaping the metal ring blank 1 which can be subjected to thermoplastic processing to enable the specification size of the metal ring blank 1 to be adapted to the required annular size, as shown in fig. 1 and 2;

(c) keeping the thermoplasticity processing state of the metal ring blank 1, and performing pressure shaping on the metal ring blank 1 by using a hard pressing die to obtain a semi-finished ring body 2 with an octagonal or oval cross-section, as shown in fig. 3 to 5;

(d) carrying out heat treatment on the semi-finished product ring body 2 to generate a proper metallographic structure;

(e) and machining the semi-finished ring body 2 according to the required size parameters to obtain a finished metal sealing ring gasket.

If the diameter of the ring is larger, the metal ring blank 1 can be press-molded in a step (c) in a segmented manner, which facilitates the processing.

In practice, the production process of the metal ring blank 1 itself is often performed by heating, and the step (a) can be rapidly and continuously performed without cooling after the metal ring blank 1 is manufactured, so that the method is more environment-friendly and energy-saving.