Method for inserting glass tube into rubber tube when assembling instrument
If the outer diameter of the two glass tube to be connected is greatly different, the method can be used repeatedly to connect the glass tube into a channel or to be connected by a socket inserting method.In addition to the use of rubber sheathed outside the glass tube, can also be used for plastic pipe glass tube is sheathed, however, due to the elastic rubber pipe plastic pipe as well, so for sheathing plastic pipe with small diameter should be equal to the outer diameter of the glass tube.In addition, the use of plastic pipe sleeve glass tube should be adopted heat law, that is, the plastic pipe heating expansion and glass tube connection, and should not be rigidly inserted.Finally, because of the poor elasticity of the plastic tube, it is easy to age, harden and brittle, so when the glass pipe is connected with the plastic sleeve, the sealing measures must be adopted for the sleeve joint, and the sealing is usually done by gluing or waxing.
The sleeve method of different outer diameter glass tube should be determined according to the size of the outer diameter. If the outer diameter of the two tubes is not big, then the rubber tube with the same inner diameter can be connected. When connecting to the rubber sleeve in the larger outer diameter glass tube, the specific method, with a diameter from one end of the rubber tube of the same stick (such as chopsticks) inserted into the connection end to the rubber tube, rubber tube set in reverse, then the larger outer diameter glass tube against the wooden stick. The rubber hose forward turning sleeve on a glass tube, stick out.
In the pipeline connection, the rubber tube and the plastic pipe are commonly used for the glass tube sleeve connection. Because the caliber of the glass tube is different, the sleeve connection method is different.The connection of the glass with the outer diameter can be connected by a rubber tube, and the inner diameter of the rubber tube shall be slightly smaller than the outer diameter of the glass tube, and the glass tube can be lubricated with water or soap (not oily lubricant) when connected.
Pipe connection is widely used in the laboratory. Besides the sleeve of the glass tube, there are plastic tube, rubber hose and iron pipe sleeve, etc. the sleeve connection method can be carried out by referring to the sleeve connection method of the glass tube.
