DEVICE FOR CONTACT-HEAT WELDING OF THERMOPLASTICS Russian patent published in 2005 - IPC

FIELD: chemical and food-processing industries.

SUBSTANCE: the invention is pertaining to the field of chemical and food industries, to the systems for production of tight packages for granular or gelatinous explosive materials, mainly ammonites and a tobacco or flour and sugar dust, as well as other substances having a tendency of inflammation being in a dust-like state. The device contains a body having longitudinal slot and both grooves and a heating element mounted in the body. The heating element is supplied with a reflecting screen located on the side counter to the body effective surface. The device in addition contains the tightening members and aids for compression and fixation of them. The heating element is supplied with a heat-insulator located in the body on the side opposite to its effective surface and contacting with the reflecting screen. The outer surfaces of the body and aids for compression and fixation have transversal grooves. The invention ensures explosion safety and reparability of the device, which are meeting the requirements of safety engineering at packing of explosive materials.

EFFECT: the invention ensures the device explosion safety and reparability meeting the requirements of safety engineering at packing of explosive materials.

6 cl, 3 dwg