[China Glass Net] When the screw cap of a glassware cannot be opened, it can be baked near the cap with a hair dryer or a small flame to be thermally expanded, and then used to wrap the cap and force it to unscrew.
1, tapping
Gently tap the side of the grinding part with a wooden piece to make it loose and detached due to shock. For the fixed reagent bottle, the grinding plug of the separatory funnel, etc., the plug and the bottle mouth of the instrument can be stuck at the corners of the test bench or the wooden table, and then the wood is lightly inclined at an angle of about 70° to the axis of the instrument. Small buckles, while rotating the instrument intermittently, such as repeated manipulations for a few times, generally can open the crack is not severe.
2, heating
Some fixed grinding mouths, which are inconvenient to knock or knock, can heat the outer layer of the fixing part to be thermally expanded to be detached from the inner layer. For example, use a hot damp cloth to "hot pack" the sticky place, use a hair dryer or swim the flame to bake the grind, etc. If the bottle is filled with unheatable or flammable materials, take a knot of rope, one end on a fixed object such as the door and window handle, then turn the rope clockwise around the bottle cap, then pull the rope tightly At the other end, holding the bottle in one hand and pushing it forward can open the cap.
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