Технология PCB - Какая разница между напылением без свинца и напылением свинца для производства PCB?

ipcb is a circuit board manufacturer specializing in the manufacture ofпечатная плата, сосредоточиться на создании синглов, double-sided and multilayer circuit boards for many years. Она может обеспечивать многослойную PCB - пластину (например, импедансную) для пробы и мелкосерийного производства, панель HDI, and blind buried via boards. След., Я представлю разницу между безобидным и безобидным лужением в производстве PCB.

PCB board

The difference between бессвинцовое оловоing and lead tin spraying for PCB board
1. олово без свинца является экологически чистой технологией, свинец, не содержащий вредных веществ, the melting направление is about 218 degrees; the temperature of the tin furnace needs to be controlled at 280-три00 degrees; the wave soldering temperature needs to be controlled at about 260 degrees; over reflow soldering The temperature is around 260-270 degrees.

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2. Lead spraying is not an environmentally friendly process, и содержит вредные вещества "свинец", with a melting point of about 183 degrees; the temperature of the tin furnace must be controlled at 245-260 degrees; the temperature of wave soldering must be controlled at about 250 degrees; the temperature of over reflow soldering Around 245-255 degrees.

3. From the surface of tin, свинцово - оловянный ярче, and lead-free tin is dull; the wettability of lead-free board is a little bit worse than that of leaded board.

4. The lead content of lead-free tin does not exceed 0.5, and the lead content of leaded tin reaches 37.

5. Lead will increase the activity of the tin wire during the soldering process. свинцово - оловянная проволока лучше, чем оловянная проволока без свинца; Однако, lead is poisonous, продолжительное употребление вредно для человека. Lead-free tin has a higher melting point than lead tin, сварная точка крепится.

6. обработка поверхности панели PCB, usually the price of lead-free tin spraying and lead-free tin spraying is the same, без различия.

PCB proofing

PCB board service advantages
The energy production is from 2 to 14 layers, 14 - 22 пласта.
минимальная ширина линии/spacing: 3mil/расстояние между 3 мм и BGA: 0.20MM
The smallest aperture of the finished product: 0.1mm Size: 610mmX1200mm
Ink: Tamura, жестянщик солнца, Fudokken from Japan;
FR4: Shengyi, главная палуба, Haigang, великое человеколюбие, пригородные списки, Hazheng, Южная Азия,
(Shengyi S1130/S1141/S1170), тыг 130– укрыватель/ Tg170„ƒ Tg180„ƒ Contour TG sheet)
High frequency board: Rogers (Rogers), коник, ARLLON;
Surface technology: tin spray, lead-free tin spray, immersion gold, цельное золочение, plug gold plating, цельноменклатура, chemical tin (silver), anti-oxidation (OSP) blue glue, carbon oil

PCBA processing plant

Why choose ipcb?
1. Strength guarantee
ªSMT workshop: It has imported placement machines and multiple optical inspection equipment, каждый день можно получить 4 миллиона интегралов. Each process is equipped with QC personnel, кто может следить за качеством продукции.
ªDIP production line: There are two wave soldering machines. среди, there are more than ten old employees who have worked for more than three years. рабочий мастерство, сварочный материал.

2. обеспечение качества, high cost performance
ªHigh-end equipment can paste precision shaped parts, BGA, QFN, материал. It can also be used as a model for mounting and placing bulk materials by hand.
- можно производить как образцы, так и партии;. первоначальная цена за образец 800 юаней, партия начинается с нуля.008 yuan/point, and there is no start-up fee.

3. иметь богатый опыт сварки и, stable delivery
ªAccumulated services to thousands of electronic companies, служба обработки кристаллов SMT. эти продукты часто экспортируются в европу и США, and the quality can be affirmed by new and old customers.
- своевременная поставка, normal 3-5 days after the materials are complete, небольшие партии также могут быть отправлены в тот же день.

4. Strong maintenance ability and perfect after-sales service
ªThe maintenance engineer has rich experience and can repair the defective products caused by all kinds of patch welding, и обеспечивает скорость соединения каждого устройства плата.
ª24-hour customer service staff will respond at any time and solve your order problems as quickly as possible.