Jacket type glass piston preparation process

A preparation process and jacketed technology, which is applied in the field of preparation of jacketed glass pistons, can solve the problems of affecting measurement accuracy, increasing operating costs, and difficulty in meeting the requirements of temperature control accuracy, so as to improve the constant temperature accuracy and eliminate stress. Effect

Inactive Publication Date: 2006-07-26
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the two glass pistons in the middle of the electrophoresis tube, the experiment had to be performed at room temperature, which affected the measurement accuracy
If the experiment is carried out in a constant temperature room, not only the temperature control accuracy is difficult to meet the requirements, but also the operating cost will be virtually increased.

Method used

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  • Jacket type glass piston preparation process
  • Jacket type glass piston preparation process
  • Jacket type glass piston preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Such as figure 1 As shown, the steps of the preparation process are as follows:

[0027] First, blow the piston shell with a nipper as the inner layer of the jacket, as shown in (a);

[0028] Second, blow a small head and connect a glass tube to melt it, as shown in (b);

[0029] Third, open a port on both sides of the shell, and then vertically externally connect two glass tubes of equal length as the inner branch pipe. The distance between the two inner branch pipe ports should be slightly smaller than the inner diameter of the outer glass tube of the piston jacket. Use a small cork. Tighten the two pipes, as shown in (b);

[0030] Fourth, blow one end of the fused glass tube into a glass ball, as shown in (c);

[0031] Fifth, blow the big head into a glass ball, as shown in (d);

[0032] Sixth, cut off a part of the glass balls at both ends on the flame, and put a glass tube of moderate length as the outer layer of the jacket, as shown in (e);

[0033] Seventh, connect ...

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Abstract

The invention relates to a preparation technique for jacket-type glass piston. Wherein, using the blown piston-core shell as the jacket inner layer, fused sealing the broken small end with a glass tube; connecting a glass tube on the shell opening as a inner branch tube, blasting one end of glass tube and the large end into a glass ball; cutting part of the ball on blaze to cover a glass tube as the jacket outer layer; connecting and fused sealing two ends and the necked glass balls on ends of inner layer; connecting a out branch tube on outer glass tube; lengthening the inner branch tube; annealing and grinding the piston inner core and shell. This invention improves precision and reduces cost.

Description

Technical field [0001] The invention relates to a preparation process of a glass piston, in particular to a preparation process of a jacketed glass piston. Background technique [0002] In the preparation of various glass instruments, the glass piston is used as a universal accessory. However, the shells of the existing glass pistons are all single-layered. Due to the capillary action between the piston core and the shell, various glass instruments prepared by the ordinary pistons cannot be directly placed in a liquid constant temperature medium for constant temperature. [0003] Before the present invention, the entire instrument to be tested is usually placed in a constant temperature chamber to achieve the purpose of temperature control, and some even conduct experiments directly at room temperature. For example, U-shaped electrophoresis tubes are often used to study the electrophoresis phenomenon of colloids. . However, due to the two glass pistons in the middle of the electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B9/00C03B23/207
Inventor 刁国旺
Owner YANGZHOU UNIV
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