Methyl Tin Mercaptide stabilizer ProStab - T181
Substitute equivalent to American TM-181-FS
Methyl Tin Stabilizer is an efficient stabilizer used in PVC hot working process. Its stability, transparency, compatibility and weather resistance are all superior to other organotin heat stabilizers. It is widely used in PVC sheet, panel, tubing and blow molding and injection molding products. It can also be used in food packaging, medicine packaging and non-toxic and harmless PVC products. Overseas, PVC products of various foods, medicine packaging and storage, and container and tubing for supplying drinking water with high requirements have all employed methyl tin as stabilizer. Its products boast pure color and luster, less odor vanishing fast and reliable safety performance. With the same effect, the using amount of methyl tin is reduced by 15-20% than that of other similar organotin stabilizers. Our company`s products have passed the ROHS certification.
Methyl Tin Mercaptide, Tin Stabilizer, Methyl Tin Stabilizer, Organotin Liquid Stabilizer Shandong Novista Chemicals Co.,Ltd (Novista Group) , http://www.novistachem.com
For normalizing, annealing and quenching of metal parts. The furnace uses energy-saving electric furnaces of lightweight refractory bricks and refractory fibers. 1200 °C can be used for heating and quenching of metal or alloy steel parts.
The main technical parameters of low temperature tempering furnace:
Rated power (kW): 35
Maximum working temperature (°C): 350
Furnace size (mm): 600 × 900 × 450
Maximum load (kg): 420
Process method of low temperature tempering furnace:
1) The equipment uses a deep-cooling treatment box with continuous computer monitoring and automatic adjustment of liquid nitrogen intake and automatic temperature rise and fall.
2) The processing of the process consists of three programs: precise cooling, ultra-low temperature insulation and temperature rise.
The reasons for the deep cooling treatment to improve performance are as follows:
1) It transforms the lower hardness austenite into a harder, more stable martensite with higher wear resistance and heat resistance;
2) By ultra-low temperature treatment, the crystal lattice of the material to be processed has more widely distributed carbide particles with higher hardness and finer grain size;
3) Producing a more uniform, smaller, and denser material structure in the metal grains;
4) Due to the addition of micro-carbide particles and a finer crystal lattice, a denser molecular structure is caused, and the tiny voids inside the material are greatly reduced;
5) The internal thermal stress and mechanical stress of the material are greatly reduced after ultra-low temperature treatment, which effectively reduces the possibility of cracks and chipping of tools and tools. In addition, due to the residual stress in the tool affecting the ability of the cutting edge to absorb kinetic energy, the ultra-low temperature treated tool not only has higher wear resistance, but also its own residual stress is much less harmful than the untreated tool;
6) In the treated cemented carbide, a new combination of molecular structures is produced due to a decrease in its electron kinetic energy.
Use and process of tempering furnace (low temperature)
Main uses of low temperature tempering furnaces: