Technical Library | 2017-06-13 17:14:59.0
For tin-rich solder alloys, 200 C (392 F) is an extreme temperature. Intermetallic growth in tin-copper systems is known to occur and is believed to bear a direct relationship to failure mechanisms. This study of morphological changes with time at elevated temperatures was made to determine growth rates of tin-copper intermetallics. Preferred growth directions, rates of thickening, and notable changes in morphology were observed.Each of four tin-base alloys was flowed on copper and exposed to temperatures between 100 C and 200 C for time periods of up to 32 days. Metallographic sections were taken and the intermetallics were examined. Intermetallic layer thickening is characterized by several distinct stages. The initial growth of side plates is extremely rapid and exaggerated. This is followed by retrogression (spheroidization) of the elongated peaks and by general thick-
Flason SMT Assembly line Wave soldering machine in feed conveyor Demensions:1000*700*750(mm) PCB width:0-350(mm) Conveyor speed:0-2000(mm)/Min Weight:Approx.45Kg Product description: SMT Assembly line Wave soldering machine in feed conveyor
Flason SMT Assembly line Wave soldering machine in feed conveyor Demensions:1000*700*750(mm) PCB width:0-350(mm) Conveyor speed:0-2000(mm)/Min Weight:Approx.45Kg Product description: SMT Assembly line Wave soldering machine in feed conveyor
New Equipment | Board Handling - Conveyors
Flason SMT Assembly line Wave soldering machine in feed conveyor Demensions:1000*700*750(mm) PCB width:0-350(mm) Conveyor speed:0-2000(mm)/Min Weight:Approx.45Kg Product description: SMT Assembly line Wave soldering machine in feed conveyor
New Equipment | Wave Soldering
PCB Pallet Material, Ricocel ES-3261A Sheet in Black Color Ricocel is made by fiber glass cloth and high temperature resin. It is an ideal material for solder pallets, wave solder pallets, SMT solder pallets, SMT solder fixtures, selective solder fi
SMT Assembly line Wave soldering machine in feed conveyor Demensions:1000*700*750(mm) SMT Assembly line Wave soldering machine in feed conveyor PCB width:0-350(mm) Conveyor speed:0-2000(mm)/Min Product description: SMT Assembly line Wave solde
M606 High Cost-effective multifunction pick place machine Main Features: 1.The use of gigabit flight camera, which greatly improved the efficiency of placement 2.220V servo motor rated total power 1.5kv, the industry's lo
New Equipment | Assembly Services
Our Service PCB Assembly and PCB&PCBA design are our main business.We are able to undertake a high quality Printed Circuit Board Assembly on competitive prices and flexible conditions.We are a complete “One- Stop” resource for printed circuit board
New Equipment | Assembly Services
Molex New and Original 68151-2025 in Stock IC Connector package 68151-2025 Board Connector, 20 Contact(s), 2 Row(s), Male, Right Angle, 0.098 inch Pitch, Solder Terminal, Guide Slot, Gray Insulator, Receptacle 178303
Industry News | 2023-04-24 19:35:42.0
Silicon Mountain has upgraded its selective soldering department with four new selective solder systems from Pillarhouse International. The company continues to invest to maintain the flexibility, quality, and turnaround necessary to meet each customer's unique needs.
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