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    • 3. 发明专利
    • Pressure control method in wet type blasting device
    • 湿式喷砂装置中的压力控制方法
    • JPS591167A
    • 1984-01-06
    • JP11137882
    • 1982-06-28
    • Ishikawajima Harima Heavy Ind Co LtdNippon Steel Corp
    • HIRATA YASUMASAYAMAGUCHI SUSUMUNABESHIMA MASANOBUODA YOSHIAKI
    • B24C1/00B24C1/08B24C7/00
    • B24C7/0023
    • PURPOSE:To carry out uniform surface treatment to a strip material, by controlling high pressure water for jetting abrasive, in such a way that the rotational speed of a high pressure water pump is decreased to control a flow control valve in a low pressure range, but the flow control valve is opened to control the rotational speed of the pump in a high pressure range. CONSTITUTION:The open degree of a flow control valve 2 is adjusted in such a condition that the pressure of high pressure water is decreased by limiting the rotational speed of a high pressure motor 4. In a high pressure range B the flow control valve 2 is fully opened so that the adjustment of the open degree of the flow control valve 2 is not made, and therefore, by using a valve having satisfactory flow characteristics for the flow control valve 2, the jetting pressure of high pressure water may be accurately controlled.
    • 目的:为了对带状材料进行均匀的表面处理,通过控制用于喷射研磨剂的高压水,以降低高压水泵的转速来控制低压范围内的流量控制阀, 但是流量控制阀打开以控制泵在高压范围内的转速。 构成:通过限制高压电动机4的转速,调节流量控制阀2的开度,使得高压水的压力降低。在高压范围B中,流量控制阀2为 完全打开,使得不进行流量控制阀2的开度的调整,因此通过使用流量控制阀2具有令人满意的流量特性的阀,可以精确地控制高压水的喷射压力。