Technical Library | 2021-11-26 14:34:07.0
The use of desiccant bags filled with Silica Sand and or Clay beads used in conjunction with a Moisture Barrier Bag to control moisture for storage of printed circuit boards has long been an accepted practice and standard from both JEDEC and IPC organizations. Additionally, the use heated ovens for baking off moisture using the evaporation process has also been a long#2;standing practice from these organizations. This paper on alternative drying methods will be accompanied by completed independent, unbiased tests conducted by Vinny Nguyen, an engineering student (now graduated) from San Jose State University. The accompanied paper will examine the performance levels of different technologies of desiccant bags to control moisture in enclosed spaces. The tests and equipment set were reviewed by an engineer and consultant to the Lockheed Martin Aerospace Division and the IPC - TM-650 2.6.28 test method was review by engineer from pSemi. The tests were designed to mimic performance tests outlined in Mil Spec 3464, which both IPC and JEDEC have adopted for their respective standards. The test examined variables including absorption capacity rates, weight gain and release of moisture back into the enclosed area. The presentation will also address and highlight: • Similarities of PCBs and Heavy Equipment as it applies to Inspections, Causes of Failure, Types of Corrosion and Moisture Collection Points. • Performance Attributes of Different Desiccant Technologies as it applies to shape, texture, change outs, labeling and regeneration. • Venn Diagram of Electromechanical Failure with the circles 1. Current 2. Contamination 3. Humidity Presentation Available
OEM Foundry Metal Casting Iron Parts with Sand Mold Casting parts,sand casting parts,precision casting parts,stainless steel casting parts,steelcasting parts,steel casting ,stainless steel casting,carbon steel casting, casting,metal casting Speci
OEM Customized Iron Casting Butterfly Valve for Casting Valve Body valve, valve parts,valve body,butterfly valve,casting valve,iron valve,cast valve Steel pump sand casting A. Sodium silicate sand casting. B. Steel, SST. C. Weight: Upto 7000KG. D.
Industry News | 2010-09-14 21:59:38.0
Long recognized as the platform to introduce the latest products and services to the Southeast Asian market, 50% of the exhibiting companies are showcasing 30% more new products at the 10th edition of GlobalTRONICS.
Customized Grey Iron Sand Casting Flywheel for Exercise Equipment Specifications: 1.Process: Sand Casting. 2.Casting experience: 10years,OEM service available 3.Surface: blackening, galvanize, plating,painting,etc. 4.Material: gray iron, cast iron 5
Customized Sand Casting Fitness Equipment Flywheel with Machining A. Sodium silicate sand casting. B. Cast Iron. C. Weight: Upto 7000KG. D. Pump body, impeller, etc. E. Hydraulic test, and other necessary inspections available. 1) molding process:
Customized Grey Iron Sand Casting Flywheel for Exercise Equipment Specifications: 1.Process: Sand Casting. 2.Casting experience: 10years,OEM service available 3.Surface: blackening, galvanize, plating,painting,etc. 4.Material: gray iron, cast iron 5
Customized Sand Casting Fitness Equipment Flywheel with Machining A. Sodium silicate sand casting. B. Cast Iron. C. Weight: Upto 7000KG. D. Pump body, impeller, etc. E. Hydraulic test, and other necessary inspections available. 1) molding process:
This video is designed to help packaging engineers, quality control managers and those tasked with preserving critical parts in enclosed spaces for storage and usage. The video will highlight different features and benefits of the Moisture Hog desic
Career Center | Greenville, South Carolina USA | Engineering,Management,Production,Purchasing,Quality Control
Job Purpose Develop the next generation, leading edge products for GE Energy customers. As an Advanced Manufacturing Engineer supporting Gas Turbines, you will: Work in a highly cross-functional environment with Engineering, Manufacturing, Sourci
