From June 3rd to 4th, Shuangfan YJQ-145VBIII new pneumatic cradle seminar was held in Zhangjiagang Shuangfan Textile Equipment Co., Ltd. Zhang Huailiang, vice chairman of the China Textile Engineering Society, Professor Tang Wenhui, expert of China's fine yarn drafting theory at Donghua University, and Xu Honggen, deputy director of the Cotton Textile Professional Committee of the China Textile Engineering Society, and other relevant experts attended the seminar.
The participating experts visited the pneumatic cradle production line of Shuangfan Textile Equipment Co., Ltd., and went to the site of the new pneumatic cradle manufacturer Jiangyin Tianda Textile Co., Ltd. for on-site inspection. Experts believe that the Shuangfan YJQ-145VBIII new pneumatic cradle has reached the domestic advanced level.
Zhangjiagang Shuangfan Textile Equipment Co., Ltd. is a spinning and distributing enterprise specializing in the production of pneumatic cradle. YJQ-145VBIII new pneumatic cradle series pneumatic V-shaped drafting cradle is independently developed on the basis of YJQ-145VII, YJQ-145VBIIV-shaped drafting cradle, and has obtained national patent. The product inherits the pressure stability of the pneumatic cradle, the difference between the ingots is small, the pressure adjustment is convenient, the whole stepless pressure regulation can be realized, the semi-depressurization and the full pressure release can be realized when the vehicle is stopped, and the roller grip line is not caused by The relative slip and the detail or breakage can meet the requirements of the spinning process of heavy ingot, heavy pressurization, large drafting and high speed. The mechanism is compact and easy to operate and maintain. In addition, the new pneumatic cradle has 29 technical improvements in strengthening the cradle pressure stability and three-line parallel accuracy, and the appearance quality and internal quality of the product have been improved. After random testing by the National Textile Machinery Quality Supervision and Inspection Center, its three-line parallel accuracy and pressure deviation values ​​have exceeded the current industry standards.
It is understood that YJQ-145VBIII high-precision pneumatic cradle currently has nearly 400,000 spindles in Huafu Holding Group, Hebei Ningfang, Shandong Shanghe Hongye Textile, Shandong Laiwu Taifeng Textile Group, Shandong Huale, Shandong Crown Star Group and other more than 20 high-yarn mills use, and the operation is stable, the quality of yarn is high.
Initiator TBPB
Tert-Butyl peroxybenzoate (TBPB) a chemical compound from the group of peresters. It is often used as a radical initiator in polymerization reactions, such as the production of LDPE from ethylene, and for crosslinking, such as for unsaturated polyester resins.
TBPB is a low volatility ,high purity,liquid, aromatic peroxuester.it is effective as medium of a broad spectrum of monomers e.g .styrene.ethylenn,acrylics.it is also used to cure (copolymerzation) unsaturated resins .
TBPB is a clear light yellow liquid, which is little soluble in water but well in many organic solvents such as ethanol or phthalate.
As peroxo compound, TBPB contains about 8.16 wt% of active oxygen and has a self accelerating decomposition temperature (SADT) of about 60 °C. The SADT is the lowest temperature at which self-accelerating decomposition in the transport packaging can occur within a week, and which should not be exceeded while storage or transportation.[2] TBPB should therefore be stored between minimum 10 °C (below solidification) and maximum 50 °C. Dilution with a high-boiling solvent increases the SADT. The half-life of TBPB, in which 50% of the peroxy ester is decomposed, is 10 hours at 104 °C, one hour at 124 °C and one minute at 165 °C. Amines, metal ions, strong acids and bases, as well as strong reducing and oxidizing agents accelerate the decomposition of TBPB even in low concentrations.[ However, TBPB is one of the safest peresters or organic peroxides in handling. The main decomposition products of tert-butyl peroxybenzoate are carbon dioxide, acetone, methane, tert-butanol, benzoic acid and benzene.
Initiator Tbpb,Tert-Butyl Peroxybenzoate Formula,Tert-Butyl Peroxybenzoate Activation,Tert Butyl Peroxybenzoate Formula
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