Shenzhen JJY Factory supplies high-temperature solder paste and lead-free high-temperature solder rods

Good solder paste should have the following characteristics
  1It has a relatively long storage service life0-10℃Store below0- 6 One month. It is not prone to chemical reactions during storage, nor will there be a situation where solder powder and flux separate, and its viscosity and adhesion will remain unchanged.
  2It has a relatively long operating service life. Generally, it is stipulated that it can be placed at room temperature after printing or drop coating12-24 For hours, its performance indicators remain unchanged.
  3After printing or gluing and during the heating process in the reflow oven, the solder paste should maintain its previous shape and size without causing blockage.
  4Excellent lubrication performance. The surfactant and wetting agent components in the flux should be appropriately adopted to facilitate meeting the lubrication performance requirements.
  5No solder spatter is produced. This primarily depends on the water absorption capacity of the solder paste, the types, melting points and dosages of organic solvents in the solder paste, as well as the types and components of residues in the solder powder.
  6It has a good welding compressive strength and is guaranteed It is impossible for electronic devices to fall due to factors such as vibration.
  7The post-weld residue has good reliability, is corrosion-resistant, has a relatively high grounding resistance, and has good cleanliness.
  New items that should be particularly noted when choosing solder paste:
  1It has good storage reliability.
  2It has excellent printability (fluidity, release property, and continuous printability).
  3After printing, it should be aligned within a certain period of timeSMD It has a certain degree of adhesion.
  4After welding, a good tight connection can be achieved. Spot welding is required to be smooth and clean
  5The flux composition should have high insulation performance and low corrosion.
  6It has excellent cleaning properties for flux sediment after welding, and no sediment components should be left after cleaning.
  inSMTThe necessity of solder paste in the production process is equivalent to these foods in a delicious meal. Only when good food is combined with exquisite cooking skills can delicious food be made.
  It happened because of solder pasteSMTThe proportion of product defectsSMT All the shortcomings in the production process60％-70％Therefore, the solder paste and the reasonable application method of the solder paste areSMTIt becomes crucial in the production process. In the reflow oven for surface mount components, solder paste is used to execute the wires or nodes of surface mount componentspcbThe solder paste for the connection of the solder layers on the board can ensure that the solder joints have sufficient impact toughness, excellent electrical contact, and a smooth and neat appearance.
High-temperature solder pasteIt is generally composed of chemical elements such as tin, silver and copper, and the melting point of high-temperature solder paste210-227℃.LEDOr it is recommended to use high-temperature solder paste free of heavy metals, which has very high stability and is less likely to come loose or crack.