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 addit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1

[0043] Such as Figure 1-3 As shown, a six-station sand molding machine includes a rotary support 10 that is rotatably arranged on a machine base 101 along a vertical axis, and the rotary support 10 is provided with equidistant intervals along the circumferential direction on the peripheral surface Six sand molds 20, the side of the rotary support 10 corresponds to the position of the six sand molds 20, respectively, there are a mold frame feeding station 11, a mold frame closing station 12, a sand filling station 13, and a reserved manual inspection station. 14. Pressing station 15 and sand unloading station 16; the sand mould 20 includes a base 26, a lower template 21 movably connected to the base 26 in the vertical direction, and an enclosure movably connected to the lower template 21 in the vertical direction. Plate 22; the top surface of the lower template 21 is provided with a convex mold 211 for forming a sand cavity, and the mold frame loading station 1...

Example Embodiment

[0052] Example 2

[0053] A casting process for a piston 233 ring includes the following steps:

[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 runners 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 port on the upper end of the top sand mold. The pouring port and the lower sand mold The longitudinal runner is connected;

[0056] Step 3: Transfer the stacked sand mold to the pouring area, and inject molten iron into the sand mold through the pouring port. The molten iron exit temperature is not lower than 1500℃, and the pouring temperature is not lower than 1350℃;

[0057] Step 4: Cool the cast sand mold to room temperature, and then perform de-sand treatment to cle...

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PUM

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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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