Continuous flash butt-welding machine

• US 4,159,408 A
• Filed: 02/03/1978
• Issued: 06/26/1979
• Est. Priority Date: 02/07/1977
• Status: Expired due to Term

• Current Assignee: Vsesojuzny Nauchno-Issledovatelsky Institut PO Stroitelstvu Magistralnykh Truboprovodov, Vsesojuzny Nauchno-Issledovatelsky Proektno-Konstruktorsky I Teknologichesky Institut Elektrosvarochnogo Oborudovania
• Original Assignee: Vsesojuzny Nauchno-Issledovatelsky Institut PO Stroitelstvu Magistralnykh Truboprovodov, Vsesojuzny Nauchno-Issledovatelsky Proektno-Konstruktorsky I Teknologichesky Institut Elektrosvarochnogo Oborudovania
• Inventors: Lifshits, Viktor S., Alexeev, Boris S., Komarchev, Anatoly I., Bogdanov, Valentin N., Khazov, Vadim Y., Belov, Andrei B., Ryskova, Zinaida A.
• Primary Examiner(s): Goldberg, E. A.
• Assistant Examiner(s): Shaw, Clifford c.
• Application Number:
  US05/874,782
• Time in Patent Office: 508 Days
• Field of Search: 219/97, 219/100, 219/133, 219/134, 219/101, 219/110, 219/108
• US Class Current: 219/110
• CPC Class Codes: B23K 11/246 for flash welding
• CPC Class Codes: F02B 3/06 with compression ignition compression ignition engines using air or gas for blowing fuel into compressed air in cylinder F02B13/02

Abstract

According to the invention, the continuous flash butt-welding machine supplied with power from a mobile diesel-generator power plant comprises a rectifier-charger the input of which is connected to the diesel-generator. The machine has a storage battery provided with a charge-discharge sensing element connected to the rectifier-charger. The machine also has an inverter with a unit for controlling the frequency and amplitude of the voltage at the inverter output. The inverter is connected to welding transformers and to a current transducer. The control unit is connected to the charge-discharge sensing element, the current transducer and a flashing value sensing element. The proposed invention makes it possible to reduce the installed power of the diesel-electric units of mobile power plants and to increase the life of the diesel engines and the thermal efficiency of the welding process.

Claims

1. A continuous flash butt-welding machine supplied with power from a mobile power plant, comprising:

(a) a rectifier-charger having first and second inputs and an output, said first input of said rectifier-charger being connected to said mobile power plant;

(b) a storage battery having an input connected to said output of said rectifier-charger and having first and second outputs;

(c) a charge-discharge sensing element having an input connected to said second output of said storage battery and having first and second outputs, said first output being connected to said second input of said rectifier-charger;

(d) an inverter having first and second inputs and an output, said first input connected to said first output of said storage battery and to said output of said rectifier-charger;

(e) a unit having a first input connected to said second output of said sensing element and having an output connected to said second input of said inverter for controlling the frequency and amplitude of the voltage at the output of said inverter;

(f) a welding transformer connected to said output of said inverter;

(g) a current transducer having an input connected to said output of said inverter, and having an output connected to a second input of said unit for controlling the frequency and amplitude of the voltage at the output of said inverter; and

(h) a flashing value sensing element arranged to sense the occurrence of said flash butt weld and producing an output upon sensing such occurrence, said output being connected to a third input of said unit for controlling the frequency and amplitude of the voltage at the output of said inverter.