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.
Technical Library | 2019-04-11 05:59:57.0
Are your MSD safely stored? As humidity is found to be one of the key reasons for rejected products, many manufacturers are taking measures to control the humidity to increase their production efficiency and save the cost. In the industries of semi-conductor and electronics, the key section in which the rejected products are most probably to be made is that during the heating process of SMT, the IC(e.g.,PBGA,BGA,or TQFD) is likely to crack and thus cause non-effective welding because of the humidity. Climatest Symor® auto dry cabinet is the best solution to avoid the cracking and non#2;effective welding by dehumidifying the surface of your components. The dry unit can be used for 20 years without replacement,and controller is calibration free within 5 years.We attach dry cabinet application with different humidity range,welcome to download.
Technical Library | 2024-01-08 18:44:00.0
Printed circuit boards, especially multilayer, flexible and rigid-flexible printed circuit boards, are extremely hygroscopic, i.e. they absorb and bind the moisture in the air. A dried polyimide film, for example, will have reached its moisture saturation level again after just a few hours.
Ultra Low humidity desiccant dry cabinets for safe processing and storage of MSD (moisture sensitive device). Self contained, auto-recycling, no nitrogen required. Also known as desiccators, dry box dehumidifying cabinets, & ultra low humidity storage cabinets.
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.
New Equipment | Board Handling - Storage
Independent Moisture Control in Every Hive FEATURES 32 individual hives hold a variety of parts from reels to JEDEC trays to PCBs Individual hives are isolated to maintain humidity control when any door is opened Multiple forced convectio
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 | Manufacturer
Design and Manufacture Desiccant Dry Cabinets for low humidity storage and baking of moisture sensitive components, PCBs, electronic materials, lab samples, digital media and medical devices.
ECD's SmartDRY™ desiccant dry cabinet, for surface mount technology (SMT) components storage, intelligently controls moisture sensitive level (MSL) to the J-STD-033 Specification while mitigating electrostatic discharge (ESD) at low relative humidity
New Equipment | Board Handling - Storage
Dr. Storage offers the most diverse selection of Dry Cabinets in the industry. The latest Dr. Storage cabinets include cabinets drying at 1% RH, drying at less than 1% RH and baking at 60°C. Cabinets are plug and play so they are up and running easil
