Preparation method of aluminum bronze composite casting valve plate
A composite casting, aluminum bronze technology, applied in the field of casting, can solve problems such as undisclosed composite casting process system, and achieve the effects of shortening pouring time, accurately controlling temperature difference, and positioning accurate
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Embodiment 1
[0017] This embodiment relates to a method for preparing an aluminum-bronze composite casting valve plate. The preparation method consists of the following steps:
[0018] Step 1: Take the coated sand and inject it into the mold cavity of the valve plate, keep warm to make the coated sand solidify and form, and then remove the mold to obtain the coated sand shell; the injection uses a sand shooting machine, and the pressure of the sand shooting machine is controlled as 0.7Mpa; the temperature of the sand shooting machine is controlled at 205°C; the number of times the sand shooting machine shoots sand is 4 times, and the interval between each sand shooting is 4 seconds; before injecting into the valve plate cavity, the valve plate cavity is heated until the temperature is 175°C; the heat preservation is specifically: keep the temperature at 186°C for 15 seconds; the valve plate mold cavity is provided with an inner core that cooperates with the copper sleeve;
[0019] Step 2: ...
Embodiment 2
[0024] This embodiment relates to a method for preparing an aluminum-bronze composite casting valve plate. The preparation method consists of the following steps:
[0025] Step 1: Take the coated sand and inject it into the mold cavity of the valve plate, keep warm to make the coated sand solidify and form, and then remove the mold to obtain the coated sand shell; the injection uses a sand shooting machine, and the pressure of the sand shooting machine is controlled as 1.0Mpa; the temperature of the sand shot machine is controlled at 225°C; the number of sand shot by the sand shot machine is 4 times, and the interval between each sand shot is 5 seconds; before injecting into the valve plate cavity, the valve plate cavity is heated until the temperature is 185°C; the heat preservation is specifically: keep the temperature at 195°C for 25 seconds; the valve plate mold cavity is provided with an inner core that cooperates with the copper sleeve;
[0026] Step 2: Fix the copper sl...
Embodiment 3
[0031] This embodiment relates to a method for preparing an aluminum-bronze composite casting valve plate. The preparation method consists of the following steps:
[0032]Step 1: Take the coated sand and inject it into the mold cavity of the valve plate, keep warm to make the coated sand solidify and form, and then remove the mold to obtain the coated sand shell; the injection uses a sand shooting machine, and the pressure of the sand shooting machine is controlled as 0.8Mpa; the temperature of the sand shooting machine is controlled at 220°C; the number of times the sand shooting machine shoots sand is 4 times, and the interval between each sand shooting is 4 seconds; before injecting into the valve plate cavity, the valve plate cavity is heated until the temperature is 180°C; the heat preservation is specifically: keep the temperature at 190°C for 20 seconds; the valve plate mold cavity is provided with an inner core that cooperates with the copper sleeve;
[0033] Step 2: F...
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