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We are specialize in High Quality SMT (Surface Mount Technology) spare parts and PCBA Process Equipments at very competitive price.
WE SPECIALISED IN SMT MACHINERIES AND PERIPHERAL EQUIPMENTS SERVICING, RENTAL & TRADING MACHINES
Electronics Forum | Fri May 21 18:32:53 EDT 2004 | Abe Froman
We have been using nitrogen in our reflow ovens for many years to reduce oxidation on our solder joints. Management is concerned about the high cost of nitrogen and have suggested we use hydrogen instead. I'm not sure if this is a good idea, but we
Electronics Forum | Fri May 21 20:38:40 EDT 2004 | Grant Petty
Hi, This would be a very exciting idea. Nitrogen is an inert gas, so this is why it's used, however Hydrogen mixed with oxygen in normal air is highly explosive, so it would be one of the worst gasses to use in a reflow oven I would think. Remember
Industry News | 2013-05-21 22:12:09.0
Based on its recent analysis of the surface mount technology (SMT) reflow soldering equipment market, Frost & Sullivan recognizes Heller Industries, Inc. with the 2013 Global Frost & Sullivan Award for Market Share Leadership.
Industry News | 2014-09-06 19:18:17.0
Briefing Co-hosted by IPC as Part of Continuing Effort to Connect IPC Members with Policymakers.
Technical Library | 2019-07-02 23:02:05.0
The introduction of lead-free solders resulted in a selection of different chemistries for solder pastes. The higher melting points of lead-free alloys required thermal heat resistant rosin systems and activators that are active at elevated temperatures. As a result, more frequent maintenance of the filtration systems is required and machine downtime is increased.Last year a different method of cleaning reflow ovens was introduced. Instead of cooling down the process gasses to condensate the residues, a catalyst was used to maintain the clean oven. Catalytic thermal oxidation of residues in the nitrogen atmosphere resulted in cleaner heating zones. The residues were transformed into carbon dioxide. This remaining small amount of char was collected in the catalyst. In air ovens the catalyst was not seen as a beneficial option because the air extracted out of the oven was immediately exhausted into the environment. When a catalyst is used in an air environment there is not only the carbon dioxide residues, but also water. When a catalyst is used in an air reflow oven the question is where the water is going to. Will it condensate in the process part of the oven or is the gas temperature high enough to keep it out of the process area? A major benefit of using a catalyst to clean the air before it is exhausted into the environment is that the air pollution is reduced dramatically. This will make environmental engineers happy and result in less pollution of our nature. Apart from this, the exhaust tubes remain clean which reduces the maintenance of air ovens.This paper will give more detailed information of catalyst systems during development and performance in production lines.
Technical Library | 2020-11-24 23:12:27.0
In a lead-free reflow process, temperatures are higher, and materials use outgasses more than in a leaded reflow process. The trends toward higher density populated boards and more pin-in-paste technology also increase solder paste use. More components and more solder paste result in more outgassing of chemistry during the reflow process. Some assemblies report condensation of vapors when the cold printed circuit board enters the oven. Little is known about the interaction between these condensed materials in terms of the interaction between these condensed materials and the reliability of the assembly. Apart from the question of reliability, a printed circuit board contaminated with a small film of residues after reflow soldering is not desirable.
Good Quality Hot Air Lead Free Led Reflow Oven in SMT Line ❙ Introduce of Reflow Soldering Oven ETA advanced reflow oven, reflow soldering, reflow soldering oven, SMT reflow oven technology | 25 years SMT technology experience | pro
The Access Control Face Recognition system is a very widely used product. It is currently not only used in residential buildings and office buildings, but also in many scenarios. For example, corporate attendance: Some companies also use the acces
Career Center | binan city, Laguna Philippines | Engineering,Maintenance,Technical Support
6.5 Years Experience in Semiconductor Industry Specializing in Dispensing process and Equipment. 5.0 Years of Experience in Field Service Engineering. Machine Commissioning / Customer support 24 / 7, Technical Support for Customer machine and process
Career Center | THRISSUR, India | Maintenance,Production
HANDLING OF MAINTENANCE Camelot,Mascot, Selective Soldering,Wave Soldering,Aquastorm 200,H-500 HI-Z,Kolb,kerry&PBT,GETECH, ATI 105 & Final Touch 101,Heller,Btu&vapour phase,Shuttle,SRT,ESD ,Electrical maintenance . Knowledge in using SLIM KIC 2000&
Lewis & Clark | http://www.lewis-clark.com/product-tag/used-reflow-oven/
used reflow oven Archives - Lewis and Clark Skip to content My Cart: 0 View Cart Checkout No products in the cart. Subtotal: View Cart Checkout Lewis and Clark We Discover Equipment Opportunities NH: 603-594-4229 FL: 813-888-7436 sales@lewis
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