What is the testing method for lead-free solder paste? JJY Solder Paste Manufacturer

Lead-free solder pasteWhat is the testing method? Printed circuit boards applying surface mount components(PCB)In assembly, to achieve high-quality spot welding, an elevated flow back temperature curve is one of the most important elements. The temperature curve is a parameter of the temperature-time concept added to the power circuit assembly. When plotting on a Cartesian plane, the flow back process at all given times meansPCBThe temperature at the previous special point generates a curve. Now, let's have JJY solder Paste Manufacturer explain it to you:

Several key parameters affect the shape of the curve, among which the most important ones are the conveyor belt speed and the temperature setting of each zone. The duration for which the belt speed decision-making board is exposed to the set temperature in each zone. Increasing the duration allows for a considerable amount of time for the power circuit assembly to approach the temperature setting of that zone. The total duration consumed by each zone determines the total operation time.

Hazards of temperature setting in each zonePCBThe rate at which the temperature rises is highPCBIt creates a large temperature difference with the temperature in the middle of the zone. The set temperature in the lifting zone allows the machine board to quickly reach the given temperature. Therefore, it is necessary to make a diagram for decision-makingPCBThe temperature curve. The following is the outline of such a process, which is used to create and enhance the pattern.

Before gradually performing the curve process, the following machinery and auxiliary software must be used: temperature curve instrument, thermal resistance, and the thermal resistance should be adhered toPCBThe performance parameters of the dedicated tools and solder paste. Temperature curve accessory auxiliary tools can be purchased from most key electronic equipment dealers. This auxiliary tool makes curve creation convenient because it includes all the necessary accessories(Excluding the curve instrument itself).

Shenzhen JJY Industrial Technology Co., Ltd. mainly operates:LEDType solder paste, lead-containing solder paste, lead-containing silver solder paste, stainless steel plate type solder pasteSMTType solder pasteLead-free flux pasteManufacturers of solder paste and solder wire, including no-clean solder wire, lead-free solder wire, leaded solder wire, lead-free and leaded solder rods, wave solder rods, and automatic solder wires.