50ml Glass Vial Tube Liquid Or Power Rubber Stopper For Liquid Drug

Glass Vial Tube Liquid Or Power Rubber Stopper The Liquid Drug

Production method of glass vials
【Technical field】
The present invention relates to a method for the production of glass vials, in particular medicinal vials or medicinal ampoules, and glass vials produced therefrom.
【Background technique】[0002] Medicinal glass bottles (also known as so-called "vials") are composed of neutral glass, which can be classified as hydrolyzed Class 1 glass, also using the standardized test ISO 719 (DIN 12111). In particular, borosilicate glasses such as DURAN® or Fiohx®(both SCHOTT AG, a registered trademark of Mainz) are neutral glasses.
[0003] The vial or vial, respectively, must have the lowest possible emission of alkali metals, in which measurements are carried out according to the standardized test ISO 4802. Also, it is important to avoid what is called stratification, i.e. spalling of the glass surface area. This is due to the evaporation and deposition of glass components on the glass surface, especially during the thermal molding process. That is to say, in the most severe cases, the hierarchical can enter the content of the bottle, which can destroy the content.

Physic properties

Features

◆ GMP production environment

◆ Online statistical control

◆ meet ISO size and appearance AQL level

◆ detecting camera parameters and critical size defects in appearance key 77

◆ Each product can be traced to the time of delivery (DD-MM-YY), shift, machine and operator.

1, speed: in the process of centrifugal tube expansion, speed and diameter determine the centrifugal force. When the diameter is fixed, the higher the speed, the greater the centrifugal force. Under centrifugal force, the larger the diameter, the slower the speed. Therefore, when pipe expansion based on inflation rate to determine the diameter of the glass tube

2, wall thickness, and the corresponding temperature. In the process of pipe expansion, the sizing device that controls the pipe diameter mainly depends on the synchronous rotation of a set of glass tubes, which requires a wider range of speeds.

principle

The purpose is to eliminate permanent stress and structural imbalance in glass products. Glass is a poor heat conductor. After the product is formed, a temperature difference occurs between the surface layer and the inner layer during the cooling process. When the surface layer is solidified and the inner layer is viscous, the temperature difference exists but the stress relaxation does not exist. This temperature difference is when the surface layer is cooled to room temperature. , the inner layer continues to cool down and shrink, and is hindered by the surface layer to generate tensile stress, and at the same time, the surface layer generates compressive stress, which exists permanently