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(61) With brand new design, noiselessness and excellent quality in the welding spot, the welder is able to precisely control the welding energy.

(62) The welder took off his helmet, disclosing a sweating face.

(63) This paper relates the characteristics, configurations and classifications of automatic arc welder.

(64) The invention relates to a friction welded anodic aluminum guide-bar unit and a friction welder thereof.

(65) The paper introduces a induction heat welder based on DSP.

(66) The utility model belongs to a welding holder type controller used for controlling the on-off of a welder, mainly comprising a transformer, a contactor, a relay and a switch indicator circuit.

(67) Aiming at the attachment process requirements of the U structural section's flash butt welder, the special gas-liquid drive gear and pressure clamp system were designed.

(68) FN 25 seam welder which was remaked was fitted with the control system. Current percentage control model was adopted in the control system. Besides, the operating process was simplified.

(69) The improvement on the operation stability is the proper reliability and long service life for the spot welder.

(70) License for Dangerous Chemical Warehouse Keeper, Electrician and Welder, etc.

(71) In this paper, a microcomputer control system for large powerful condenser discharge welder is introduced, which is of high precision and strong ability of antidisturbance.

(72) Much refitting experience of automatic welder has great practical value in production practice.

(73) Now the tendency of development of welder is the digitize and intellectualized, as well as multi - fuctionize.

(74) A three-phase D. C. flash butt welder UZ-350 controlling by PLC for welding rims are introduced.

(75) Acoustic system adopt the Ultrasonic Welder Design Expert System which is developed by Shanghai Jiaotong University.

(76) Application, process control and solution of stored - energy welder in microelectronic packaging field are introduced.

(77) Operator Certificate such as Lift Operator, Lifting Appliance Operator and Forklift Driver, etc. License for Dangerous Chemical Warehouse Keeper, Electrician and Welder, etc.

(78) The butt welder is widely used in butt joint of such materials as steel, iron, copper and aluminum rod. It is also used in the butt joint of flat bar, flat aluminum, steel tube and steel tube.

(79) DN3 spot welder with similar structure to DN1 has quite large electrode force and is used to make those spot welders with larger power for wider uses.

(80) The company can also design and manufacture all kinds of specialized welding machines, such as automatic longitudinal seam welder,[http://Sentencedict.com] circular seam welder etc.

(81) He had worked there, and in other nuclear plants, as a pipefitter and welder — even sometimes fixing corroded piping.

(82) Finally, resistance welding equipment in microelectronics area is introduced briefly such as spot welder and seam welder, and category of spot welder and basic property of equipments are discussed.

(83) A main circuit which can be used in capacitive percusion seam welder is developed according to the welder's working principle, and the working process is analyzed.

(84) Suitable for YAG laser equipments, such as laser marker, laser cutter, laser welder, laser driller, laser wire-cutter etc. with cooling capacity from 2.5KW to 7.2KW.

(85) Welder done at least once a month when the dust handling.