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
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[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...
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[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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