Product Desciption: 1.stencil clean rolls are Suitable for SMT machines of MPM, DEK, JUKI, ERKA, FUJI, SANYO, YAMAHA, Panasonic, KME and Minami brands 2.Wiper material: 56g, 65g, 68g, PGI55g, Mesh cloth. Material designed specifically for SMT screen
Technical Library | 2019-04-08 23:21:29.0
Climatest Symor® adopts molecular sieve to dry air, the whole system is controlled by microcomputer, when humidity is high, It will start to absorb moisture,when the humidity reach the pre-set value, it will stop absorbing, and then discharge the water to outside the cabinet by heating,again and again by automatic control. The most effective and environment-friendly moisture-absorbing desiccant is molecular sieve, molecular sieve is the microporous crystal material synthesized by silicon and aluminium oxide. In order to keep the crystal net discharge to be zero, atoms with cations are located in the crystal structure.and the cation used in these synthetic crystals is usually sodium. At present, there are two kinds of molecular sieves widely used in the dry box industry: Class A and Class X. Molecular sieves are synthesized, shaped and activated under strictly controlled production processes. The whole controlled sythesis process can ensure consistency of the three-dimensional pore size. 3A molecular sieve pore size is 3 angstroms, 4A molecular sieve pore size is 4 angstroms; 13X molecular sieve pore size is 8.5 angstroms. The working principle of molecular sieve: Molecular sieves adsorb molecules onto the crystal surface by physical attraction force. Since 95% surface area of the molecular sieve is within aperture,it needs to screen the adjacent molecules by different size. Only small size molecules can enter into the inner adsorption surface of the molecular sieve through the crystal aperture. This selective adsorption phenomenon is called molecular sieve effect. The molecular sieve adsorption capacity and charge density (polarity) are further related to the adsorbed molecules. The molecular sieves can further distinguish which of the mixed molecules can be adsorbed and determine to what extent the charge density can allow the molecules to be adsorbed onto the crystal. Water molecules are particularly small (2.6 angstroms), that belong to highly polar molecules (very strong positive and negative electron density), and are easily adsorbed by molecular sieves, even under very low moisture condition,once the water molecules are adsorbed,they will be firmly fixed on the crystal. The environment-friendly moisture absorption device is equipped with molecular sieve. When it’s absorbing, the memory alloy controller is in tensile state, and the spring is in contractive state,which just make the valve contact the outer baffle, this insulates the outside air from inside dry box air to achieve dehumidification purpose; and after molecular sieve absorbed moisture inside dry box and become saturated, the program will automatically control the memory alloy device to shrink it so that the valve reaches the inner baffle position. Meanwhile, due to the shrinkage of the memory alloy, the spring is stretched and the valve is pulled out of the outer baffle,so that the moisture in molecular sieve will be discharged into the outside. after the dehumidifying process finished, the program automatically control and reset the memory alloy and spring,to restart absorbing status.
We hereby sincerely invite you and your company representatives to visit our booth at Nepcon South China show from Aug. 29 to Sep., 1 2006. Nepcon South China is the largest and most complete trade event for South China's SMT industry.
Industry Directory | Association / Non-Profit
A nongovernmental, engineering and academic organization in China.
The LIRM is a dual workstation inline laser singulation machine specially designed to handle FR4 / FR2 and flex PCBA's up to 1.6mm in thickness. It comes in 2 versions which handles different panel sizes. The system employs a green laser source
Industry Directory | Consultant / Service Provider / Manufacturer / Other
Taiwan Dry Tech Corp. manufacturer of Eureka Dry Tech Fast Super Dryers for moisture/humidity proof protective storage of PCB, MSD, IC packages, meets IPC/JEDEC J-STD-033 & IPC-1601.
Industry Directory | Consultant / Service Provider / Manufacturer
Eureka Dry Tech's IPC/JEDEC J-Std-033c Ultra Low Humidity Dry Cabinets provides moisture/humidity controlled storage of MSD,PCB, IC packages. Drying technology trusted by millions in replacing baking, nitrogen & desiccant packs.
Industry Directory | Manufacturer
Yee Fung Electric Equipment LTD. is one of the foreign capital Hi-tech corporations with advanced technology developing system and advanced production manufacture system. We are professional in design and manufacture soldering machine and parking sys
Model No.: P0483 Product Origin: China Brand Name: Neutral Other Price Terms: FOB Shenzhen Payment Terms: T/T in advance Delivery Lead Time: 7 days Certification(s): SGS Detailed Product Description Features: 1) Suitable for machines of MPM, DEK, J
Model No.: P0483 Product Origin: China Brand Name: Neutral Other Price Terms: FOB Shenzhen Payment Terms: T/T in advance Delivery Lead Time: 7 days Certification(s): SGS Detailed Product Description Features: 1) Suitable for machines of MPM, DEK, J