DTR series working principle “energy storage first, release later” charging stage: AC power is converted into DC power through the rectification circuit, charging to the large capacity capacitor bank, and the electrical energy is stored in the capacitor in the form of electric field energy Discharge welding stage: When the electrode contacts the workpiece and applies pressure, the control system triggers the discharge loop, and the energy stored by the capacitor is instantly released through the welding transformer, forming a strong pulse current. When the current passes through the contact point of the workpiece, a huge amount of heat (Joule heat) is generated due to the resistance, which melts the contact area quickly, and at the same time, it solidifies under the action of electrode pressure to form a solder joint and complete the welding. Advantages Concentrated energy, short welding time: The discharge time is usually milliseconds, the heat is concentrated in the solder joint area, and the heat-affected zone is extremely small, which can avoid deformation, annealing or performance degradation of the workpiece due to long-term heating. And it has less impact on the power grid and is more energy-saving. The degree of discoloration of the solder joints is extremely light, and the grinding process can be basically eliminated.  Controlled by microcomputer, the large screen LCD display is intuitive and clear.  Fast response, automatic supplementary digital circuit to ensure that the voltage is preset before each discharge, so as to ensure the consistency of the welding product effect  The maximum sampling speed of successive approximation 12-bit ADC (analog/digital conversion) is 100KSPS to ensure that the accuracy of the charging voltage is maintained at ±0.5V.  It has the functions of charging voltage highest protection, charging loop disconnection alarm and so on.  Double overvoltage protection, the circuit can ensure that the charging voltage does not exceed the preset safety standards to protect the capacitor.  The large screen Chinese display is clear and intuitive, and the data adjustment and setting are with touch switches, which is convenient and fast. Typical applications Electronics industry: wire and terminal welding, sensor lead soldering, battery lug welding (connection between lithium battery pole pieces and lugs). Automotive manufacturing: welding of precision parts (sensors, wiring harness plugs) and micro relay contacts. Medical devices: precision solder joints for stainless steel surgical instruments (scissors, tweezers), lead welding for implantable devices. Precision instruments: wire connection inside the instrument, welding of micro motor commutator, etc.