韩国欧美日本亚洲一区二区,日本免费一级高清婬日本片,亚洲av色欲永久无码精品,久久99国产精品亚洲

The forging parts are made by mechanical forging and pressing mechanism. Before work, the forging parts should be done carefully. The molds should be in good condition without cracks, installed correctly and fastened firmly. Clean up the debris in the slider travel space and mold space; Will die preheat to 150 ° С ~ 200 ° С left and right sides, and pay attention to preheat before work out.

Before starting the main motor, test the solenoid air valve of the clutch, and confirm that the action of the air valve, clutch and brake is accurate, sensitive and reliable before starting the main motor. The steering of the main motor must be in accordance with the specified direction; Alignment of closing height must be carried out in strict accordance with the alignment procedures and methods stipulated in the specification; Do not switch on the main motor when adjusting the lower charging device.

"Inching" should only be used for the first step stroke of the slider after empty operation test or change of mold or speed adjustment closing height. Its program is: start the main motor for a moment, close the main motor with flywheel inertia, "inching" slider stroke. Check whether the closing height and concentricity of the mold are appropriate, and then use "inching", "one-stroke" and "continuous stroke" in turn to operate according to the working specifications.

Forging press work, prohibit forging temperature below 900 ° С forging parts; When the slider is running, no head or hands are allowed to reach into the closed space of the mold, and no pliers are allowed to reach into the mold to correct or take or place the forging. Also often pay attention to the working of the mold, if found loose phenomenon immediately tighten.

If e excrement needs attention, when the forging blank is put into the mold and the forging is taken out from the mold, it is forbidden to put the foot on the power pedal; The oxide scale on the mold should be cleaned frequently. After work, the slider should be stopped at the upper dead point for the next forging production.