Machining method of metal casting
The invention discloses a machining method of a metal casting. The machining method comprises the following steps of casting, chemically removing oil, ultrasonically cleaning, alkali-washing, rinsingwith clear water, acid-washing neutralizing, ultrasonically cleaning with acetone, drying, vacuumizin...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
16.06.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a machining method of a metal casting. The machining method comprises the following steps of casting, chemically removing oil, ultrasonically cleaning, alkali-washing, rinsingwith clear water, acid-washing neutralizing, ultrasonically cleaning with acetone, drying, vacuumizing, pressurizing, washing with water, carrying out stress relief treatment, machining, and coating after finishing machining. According to the machining method of the metal casting, impurities, greasy dirt and internal bubbles on the surface of the casting are effectively removed through pretreatment and bubble removal treatment of the metal casting, the casting is placed in the heating chamber to be subjected to stress removal treatment after being cleaned multiple times, and through heating, cooling and reheating treatment, the stress inside the metal casting can be effectively removed, later machining is facilitated, the problem of breakage in the machining process is avoided, and the corrosion resistance and the |
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Bibliography: | Application Number: CN202010257646 |