Application and advantage of furnace fixture
2024-12-27
What are furnace fixtures？
Furnace fixture is a new PCB fixture for SMT processing, which is suitable for various PCB boards with SMD components on the solder side of the plug-in material.
Main type
Reflow over furnace fixture: Used in the reflow process, in which the circuit board passes through the heating zone to melt the solder paste and realize the welding of the component and the circuit board.
Wave soldering fixture: Used in the wave soldering process, in which the board is crested with molten tin so that the pin of the plug-in element is welded to the pad of the board.
Reflow over furnace fixture: Used in the reflow process, in which the circuit board passes through the heating zone to melt the solder paste and realize the welding of the component and the circuit board.
Wave soldering fixture: Used in the wave soldering process, in which the board is crested with molten tin so that the pin of the plug-in element is welded to the pad of the board.
Common materials
1.Glass fiber materials: domestic or imported glass fiber materials have certain strength and insulation properties, and the price is relatively moderate.
2.Imported aluminum plate: Aluminum plate has good thermal conductivity and mechanical strength, can withstand a certain weight and pressure.
3.Stainless steel material: Stainless steel material is strong and durable, corrosion resistance, not easy to deformation, suitable for some occasions that require high service life and stability of fixtures.
4.Synthetic stone: Usually made of carbon fiber plate synthetic stone, high temperature resistance of up to 350 degrees without deformation, low heat conduction, small expansion, but also can absorb furnace oil.
Marble slab: The marble slab with carbon fiber material is mainly composed of marble, which has certain high temperature resistance and stability.
1.Glass fiber materials: domestic or imported glass fiber materials have certain strength and insulation properties, and the price is relatively moderate.
2.Imported aluminum plate: Aluminum plate has good thermal conductivity and mechanical strength, can withstand a certain weight and pressure.
3.Stainless steel material: Stainless steel material is strong and durable, corrosion resistance, not easy to deformation, suitable for some occasions that require high service life and stability of fixtures.
4.Synthetic stone: Usually made of carbon fiber plate synthetic stone, high temperature resistance of up to 350 degrees without deformation, low heat conduction, small expansion, but also can absorb furnace oil.
Marble slab: The marble slab with carbon fiber material is mainly composed of marble, which has certain high temperature resistance and stability.
Main functions
Supporting substrate: It can support thin substrates or flexible circuit boards to prevent deformation or damage during the furnace process due to its own weight or external force.
Adapt to irregular shapes: For irregularly shaped substrates, the furnace fixture can provide customized fixation and support to ensure that the substrate can maintain the correct position and posture during the furnace welding process, ensuring welding quality.
Carrying multiple connected boards: It can carry multiple connected boards for furnace welding, increasing production efficiency, reducing the time and number of operations for a single circuit board to pass through the furnace, and improving the batch and continuity of production.
Preventing substrate bending: During the welding process, especially in high-temperature environments, the substrate is prone to bending due to thermal stress. The furnace fixture can evenly disperse heat and reduce the concentration of thermal stress by effectively fixing and supporting the substrate, thereby preventing the substrate from bending during reflow.
Protective components: During the wave soldering process, the SMD parts on the solder surface can be covered for protection, leaving only the DIP part solder pins over soldered to prevent solder liquid from splashing onto SMD components that do not require soldering, avoiding problems such as short circuits and damage.
Supporting substrate: It can support thin substrates or flexible circuit boards to prevent deformation or damage during the furnace process due to its own weight or external force.
Adapt to irregular shapes: For irregularly shaped substrates, the furnace fixture can provide customized fixation and support to ensure that the substrate can maintain the correct position and posture during the furnace welding process, ensuring welding quality.
Carrying multiple connected boards: It can carry multiple connected boards for furnace welding, increasing production efficiency, reducing the time and number of operations for a single circuit board to pass through the furnace, and improving the batch and continuity of production.
Preventing substrate bending: During the welding process, especially in high-temperature environments, the substrate is prone to bending due to thermal stress. The furnace fixture can evenly disperse heat and reduce the concentration of thermal stress by effectively fixing and supporting the substrate, thereby preventing the substrate from bending during reflow.
Protective components: During the wave soldering process, the SMD parts on the solder surface can be covered for protection, leaving only the DIP part solder pins over soldered to prevent solder liquid from splashing onto SMD components that do not require soldering, avoiding problems such as short circuits and damage.
The furnace pass fixture plays a crucial role in the production of electronic components. Firstly, it can protect components from damage caused by high temperature thermal stress. During the welding process, high temperature can cause certain thermal stress on the components. Without the protection of the over furnace fixture, the components may be damaged as a result. Secondly, the furnace fixture can ensure the stability and reliability of welding quality. By fixing the components in specific positions and evenly distributing them with the temperature inside the welding furnace, welding quality problems caused by uneven temperature can be avoided, thereby improving the stability and reliability of welding quality.
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