Industry News | 2009-01-19 00:27:55.0
EAST WINDSOR, CT � January 2009 � High-Tech Conversions Inc., a manufacturer of high-quality wiping products and a supplier of consumable items used in cleanrooms, assembly lines, laboratories and manufacturing, announces double-digit growth for 2008.
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.
Career Center | Western NY, New York USA | Engineering
We have been retained to locate an ADVANCED MANUFACTURING (SMT) ENGINEER to be a part of this small, yet elite group involved in cutting edge product development. This is not your traditional “day-in & day-out fixing problems” type of role you will b
Industry News | 2008-10-16 01:33:45.0
DEK Solar's proven PV1200 metallization solution continues to raise the bar for customers in this fast-growing sector. Revolutionizing what solar cell manufacturers can expect from their equipment, the advanced metallization line delivers a fast-track route to efficient commercial photovoltaic production.
Industry Directory | Consultant / Service Provider
Consulting firm established to promote career opportunities in the electronic manufacturing industry. We specialize in the printed circuit board assembly industry servicing the computer, telecommunication, medical, instrumentation and process controls equipment. Our customers use the state of the art equipment such as fuji, panasonic, universal pick & place equip., chip shooters, reflow
RF8810 High Precision SMT Reflow Oven - Professional Reflow Soldering Machines Characteristics: 1.Competitive price for quality 2. Eight years manufacturing experience 3.True Leader of Smt machines manufacturer in China Leadsmt the mainstream man
Events Calendar | Tue May 15 00:00:00 EDT 2018 - Tue May 15 00:00:00 EDT 2018 | ,
Parts and Assembly Storage Life: How to Determine and Manage
Otek AOI is an Automatic Optic Inspection Equipment developed and manufactured by the GFirst OEIC Co., Ltd., in Xiamen, China. Given the level of operators and the practical manufacturing environment they work in, the design tenet of Otek AOI is its
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New Equipment | Board Handling - Pallets,Carriers,Fixtures
Our Wave Solder Fixtures increase productivity and eliminate defects in your pcb assembly process. This type of fixture supports the pcb on all four sides eliminating warpage that can cause solder skips and bridges or pcb flooding. They also elim