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 | 2019-09-25 04:36:01.0
What is the main function of hot air dry oven? Drying ovens are devices used to remove moisture and other solvents from the items placed inside them through a forced convection process, collecting it elsewhere so that the object becomes dehydrated. A drying oven causes objects to dry out through evaporation. Drying ovens use convection heating,also called air forced, in which the object is heated through air currents. Water from the object escapes into the air, raising the humidity level and causing the semi-solid membranes inside the oven to absorb the water. The end result is that the oven removes water from the object being dried, leaving it dehydrated. Drying ovens contain a system for forcing convection currents to develop, usually either a fan or turbine, which aids in the heating and drying process by ensuring that the hot air circulates,many ovens are equipped with an adjustable ventilation system that allows the user to ensure that the system has an adequate air supply. For details,pls visit our website: https://climatechambers.com/articles&latestnews/what-is-the-main-function-of-hot-air-dry-oven.html
This specially designed cleaning card cleans thermal print heads that are not easily accessible. The patented presaturated thermal printer cleaning card is saturated with 99.9% isopropyl alcohol. The safe, effective, spun-bonded card allows for the t
Industry Directory | Consultant / Service Provider / Manufacturer / Manufacturer's Representative / Other
MSD storage provider Establish in 2001 Shanghai, China Subsidize by Taiwan Dr. Storage Desiccant box design to fit J-STD033 Facilitate IC/SMT defective rate cut to zero Enviromental friendly
New Equipment | Solder Materials
WS159 water washable solder paste is designed to provide humidity tolerance and excellent wetting to meet the requirements for reliable solder joints in PCB Assemblies. WS159 offers high levels of repeatability and consistency even in a wide range of
Swiftmode's Hyperclean Under Stencil SMT Wiper Rolls are the only product in the market that has beed developed specifically for the application. Best vacuum performance, less IPA usage and No loose fibres making the solder paste printing process mor
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
Industry News | 2019-11-29 10:08:57.0
Maximum Heat Transfer and Dissipation ACL Staticide® introduces the #8699 Heat Sink Grease to its existing array of PCB production, rework and repair products. ACL’s silicone-based Heat Sink Grease enables heat transfer away from electronic and electrical components. With its excellent conductivity, Heat Sink Grease is an effective thermal coupler for any heat sink surface.
Used SMT Equipment | Board Cleaners
WestKleen Formula II Aqueous Cleaning System 18” In-Line Aqueous Cleaning System, Good Working Condition. Contact Us To Look & Test Out. Comes With Manual & AutoCAD Files. Prewash, Isolation Air Knife, Heated Wash, Final Rinse, Two Air Knife Drying
Industry News | 2009-11-05 23:28:28.0
TORRANCE, CA — November 2009 — Seika Machinery, Inc., a leading provider of advanced machinery, materials and engineering services, introduces a McDry application for the recovery of data and removal of moisture from cell phones submerged in water.
