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Piston ring casting technology

A casting process and piston ring technology, which is applied in the field of piston ring casting technology, can solve the problems of lower production efficiency, low production efficiency, and high labor intensity, and achieve the effect of improving casting efficiency and sand mold production efficiency

Active Publication Date: 2020-02-21
安庆海威尔机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sand molds for piston ring casting are generally produced in a single-station operation mode, and the production efficiency is low
In addition, the molding process needs to rely on a large number of manual operations, which is labor-intensive and further reduces production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like Figure 1-3 As shown, a six-station sand molding machine includes a rotary support 10, the rotary support 10 is rotatably arranged on the machine base 101 along the vertical axis, and the circumferential surface of the rotary support 10 is equidistantly spaced along the circumferential direction. Six sand molds 20, and the positions of the six sand molds 20 on the sides of the rotary support 10 are respectively provided with a mold frame feeding station 11, a mold frame closing station 12, a sand filling station 13, and a manual inspection station. 14. Pressurization station 15 and sand mold unloading station 16; the sand mold 20 includes a base 26, a lower formwork 21 that is movably connected to the base 26 in the vertical direction, and a surrounding wall that is movably connected to the lower formwork 21 in the vertical direction. Plate 22; the top surface of the lower template 21 is provided with a punch 211 for forming a sand mold cavity, and the frame loadin...

Embodiment 2

[0053] A piston 233 ring casting process, comprising the steps of:

[0054] Step 1: Make the piston 233 ring sand mold, one end of the sand mold has a cavity and a horizontal runner, and the center of the sand mold has a longitudinal runner through the sand mold;

[0055] Step 2: Stack multiple sand molds together, and ensure that the longitudinal sprues of each sand mold are connected to each other. Set a bottom plate at the bottom of the bottom sand mold, and set a top mold with a pouring gate on the upper end of the uppermost sand mold. The pouring gate and the lower sand mold The vertical sprue is connected;

[0056] Step 3: Transfer the stacked sand molds to the pouring area, inject molten iron into the sand molds through the pouring port, the temperature of the molten iron is not lower than 1500°C, and the pouring temperature is not lower than 1350°C;

[0057] Step 4: Cool the sand mold after pouring to room temperature, and then perform sand removal treatment to clean ...

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Abstract

The invention belongs to the field of automobile part production and processing, and particularly relates to a piston ring casting technology. The technology comprises the following steps that pistonring sand molds are manufactured, the sand molds are stacked together, the stacked sand molds are transferred to a pouring area, molten iron is injected into the sand molds through a pouring opening,the temperature of the molten iron discharged out of a furnace is not lower than 1500 DEG C, and the pouring temperature is not lower than 1350 DEG C; the poured sand molds are cooled to room temperature, then sand removal is carried out, and molding sand on the surface of a casting is removed; the casting is placed in a shot blasting machine for polishing, and surface impurities are removed; thecasting is heated to 950-1050 DEG C for quenching, and the quenching time is 3-5 minutes; the casting is reheated to 600-630 DEG C for tempering, and the tempering time is 2-4 hours; and after tempering, the casting is cooled to normal temperature, and piston ring casting is completed. The stacked sand molds are adopted for piston ring casting, and the casting efficiency is improved.

Description

technical field [0001] The invention belongs to the field of production and processing of auto parts, and in particular relates to a piston ring casting process. Background technique [0002] Sand molds for piston ring casting are generally produced in a single-station operation mode, and the production efficiency is low. In addition, the molding process needs to rely on a large number of manual operations, which is labor-intensive and further reduces production efficiency. Contents of the invention [0003] The object of the present invention is to provide a piston ring casting process capable of improving production efficiency. [0004] The technical scheme that the present invention takes is specifically as follows: [0005] A piston ring casting process, comprising the steps of: [0006] Step 1: Make the piston ring sand mold. One end of the sand mold has a cavity and a horizontal runner, and the center of the sand mold has a longitudinal runner through the sand mol...

Claims

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Application Information

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IPC IPC(8): B22C9/02B22C9/24B22C11/04B22C15/08B22D47/02
CPCB22C9/02B22C9/24B22C11/04B22C15/08B22D47/02
Inventor 赵文飞陈炜华
Owner 安庆海威尔机械有限公司
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