Borosilicate Glass Tube Vials 2ml-50ml For Liquid / Powder

Borosilicate Glass Glass Tube Vials 2ml-50ml Liquid Or Power

Procuct

The purpose of eliminating permanent stresses in the glass article and the unbalanced structure. Glass is a poor conductor of heat. After molding, there is a temperature difference between the inner surface layer and the cooling process. When the inner surface layer is solidified thick, but there are temperature stress relaxation. When the surface layer cooled to room temperature, this temperature difference will appear. Length internal cooling shrinkage, tensile stress by surface obstacles, the surface compressive stress, it is permanent. Size and uneven distribution of permanent stresses in the product portion of the hot working, thus affecting the strength of glass products, and even the self-broken Hui Yinying force is concentrated. Annealing can eliminate harmful tension within the glass, to prevent new stress. When annealed, the glass article is heated or maintained at the annealing temperature after thermoforming, so that the original slack eliminating stress is then slowly cooled to a temperature below the strain.After the glass has completely entered the state of rigid body, the temperature difference between the inner and outer layers only produces temporary stress . Because certain performance and functional glasses (such as optical glass, thermometer glass) are within the transition temperature range, the huge viscosity makes the structure particles move slowly, so that its performance cannot reach the equilibrium state consistent with the temperature, and it will balance slowly during use. Produce performance changes, therefore, it must be kept at the annealing temperature for sufficient time

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.

Belonging PYREX glass of borosilicate glass. Acid, water, corrosion resistance, thermal stability, chemical stability and good electrical properties, thus having chemical resistance, thermal shock resistance, good mechanical properties, temperature and other characteristics. Linear thermal expansion coefficient of borosilicate glass (also known as hard glass) was (3.3 ± 0.1) × 10-6 / K, so it was called "borosilicate glass 3.3." Is a special glass material having a low expansion, high temperature, high strength, high hardness, high light transmittance and high chemical stability. Because of their excellent properties, it is widely used in the field of solar energy, chemical, pharmaceutical packaging, electric light source. , Jewelry, and other industries.

principle

The purpose is to eliminate permanent stress and structural imbalance in glass products. Glass is a poor thermal conductor. After the product is formed, the surface layer and the inner layer will have a temperature difference 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 occurs when the surface layer is cooled to room temperature. , The inner layer continues to cool down and shrinks, which is hindered by the surface layer to produce tensile stress, and at the same time, the surface layer produces compressive stress, which is permanent. The size and distribution of the permanent stress caused by the thermal process in each part of the product will not be uniform, therefore, it will affect the strength of the glass product, and even break by itself due to stress concentration. Annealing can eliminate harmful tension inside the glass and prevent new stress from being generated.

Company Profile:

Four Star Glass was far ahead of his time in China when he introduced FS50 tubing in 2007 for pharmaceutical packaging. Since then, FS50 glass tubing has been improved year by year to approach premium quality glass of the first hydrolytic class. This unique product in China has outstanding chemical resistance, neutrality, and its exceptional strength as well as resistance to heat attack. Containers from FS50 glass tubes are geared to storing and delivering a wide range of injectable, as well as sensitive biotech drugs.Today, Four-star is still a leading company in the Chinese market for top-of-the-range pharmaceutical packaging glass tubing.