Basic knowledge of welding tip and Soldering head

Generally, there areB/C/D/k/IAnd other models, as shown in the following figure:

Commonly used Hakko welding stations and nozzles, such as 900m-t-k, 900m-t-3c, and 900m-t-2.4d.

 

How to choose a suitable soldering head

I,Select proper soldering head size and shape: 1. selecting an appropriate soldering head can make the work faster. 2. selecting an appropriate soldering head can increase the durability of the soldering head. 3. Selecting an incorrect soldering head will not only affect the maximum efficiency of the soldering head, and the welding quality will also be reduced.

2. The size of the soldering head is directly related to the heat capacity.1. The larger the soldering head, the larger the heat capacity, the smaller the soldering head and the smaller the heat capacity. 2. When conducting continuous welding, the larger the soldering head is used, the less the temperature drop. 3. The higher the heat capacity of the soldering head, when welding can use a relatively low temperature, the soldering iron head is not easy to oxidation, increase its life 4, short and rough soldering iron head heat transfer longer and younger soldering iron head fast, moreover, the durable 5, flat, and blunt soldering iron head can transmit more heat than the sharp soldering iron head. Generally, the size of the soldering iron head is determined by the proximity components. Selecting a geometric dimension that can be in contact with the solder joints can improve the welding efficiency.

Iii. Introduction to M series soldering head:

Type I:Features: soldering headSmall tip. Application Scope: Suitable for fine welding, or narrow welding space, you can also modify the tin bridge generated when welding the chip.

Type B/lb (conical ):Features: The B-Type Soldering Iron Head has no direction and can be welded at the front end of the whole soldering iron head. The LB type is a type B type with a slim shape. It can be flexibly operated in a welding environment with higher components or narrow welding space around the solder joints. Application Scope: Suitable for general welding, regardless of the size of the solder joint, you can also use B-Type Soldering Iron Head.

Type D/LD (one-word batch Tsui ):Features: welding is performed with the bulk part. Application Scope: Suitable for welding environments that require a large amount of tin, such as welding areas, rough terminals, and welding pads.

Type C/CF (oblique cylindrical ):Features: front-end inclined part of the soldering iron head for welding, suitable for welding with more tin. Only the inclined part of the CF Type Soldering Iron Head has a Tinning layer, and only the inclined part can be dipped in tin during welding. Therefore, the amount of tin can be different from that of the C Type Soldering Iron Head, depending on the needs of welding. Application Scope: the application scope of C-Type Soldering Iron Head is similar to that of D-Type Soldering Iron Head, such as welding area, coarse terminal, and welding pad. C, 1C/CF, 1.5cf and Other soldering iron heads are very fine, suitable for welding of small components, or correction of Surface Welding when the generation of tin bridge, Tin column, etc. If only a small amount of soldering tin is required for welding, it is more suitable to use CF-Type Soldering Iron Head with Tinning at the inclined surface. 2C/2cf, 3C/3cf Type Soldering Iron Head, suitable for welding resistance, diodes and other components, with a large tooth margin SOP and QFP can also use 4c/4cf, suitable for bulky terminals, grounding on the circuit board. Power supply and other welding scenarios that require large heat.

K type:Features: UseKnifeSome welding, vertical or pull welding can be, belong to the multi-purpose soldering iron head. Application Scope: Suitable for welding of soj, PLCC, sop, QFP, power supply, grounding part components, modified tin bridge, connector, etc. Type H: features: Tinning layer at the bottom of the soldering head. Application Scope: applies to sop and QFP for welding with a large tooth margin.

 

How to select:

I,Size: 1. solder joint size: select an appropriate soldering head based on the solder joint size to make the work smoother. The soldering head is too small and the temperature is not enough. Too large, there will be a lot of soldering tin melting, difficult to control the amount of tin. 2. Solder Joint density: solder joints are welded on intensive circuit boards. The use of fine soldering iron heads can reduce the formation opportunity of xiqiao.

II,Shape: 1. Types of welding components: Electronic Components of different types, such as resistors, capacitors, soj chips, and SOP chips, must be combined with different iron headers to improve work efficiency. 2. Easy degree of contact of solder joints: If the solder joints are difficult to contact by some higher electronic components, a long and fine soldering head can be used. 3. Tin content: more tin content is required, and the Tinning layer surface area is large.