Silicon fiber Ti-gold no-burning flexible joint

Abstract

The invention discloses a kind of silica fiber titanium gold non-ignitable soft joint which is made by silica fiber titanium gold non-ignitable material. The production technical process of this silica fiber titanium gold non-ignitable material is that: weave the base by using the glass fabric; make the glass fabric immersed the rubber; treat it by sub-salt, shoot off and curing; coat special siliceous rubber and siliceous titaniferous rubber; compose silica fiber titanium gold cloth. The silica fiber titanium gold non-ignitable soft joint of this invention makes the silica fiber titanium gold non-ignitable material instead of the aluminum foil glass thread and resolves the use flaw of the modern soft pipe thoroughly and improve the fire protection performance of it largely.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a three-wire submerged arc welding method for thick plate low alloy high strength steel. Background technique [0002] At present, the welding of domestic low-alloy high-strength steel (Q345 steel and above steel grades) is limited to twin-wire or single-wire submerged arc welding, and when welding joints with mechanical performance requirements, double-wire submerged arc welding is used. , the welding specification must be limited within a narrow range (the welding current generally cannot exceed 650A, and the welding line energy is limited below 45KJ / cm), otherwise, it is difficult to balance the mechanical properties and operational weldability of the joint, which greatly limits the multi-wire welding performance. Advantages of submerged arc welding technology. [0003] In the 21st century, super high-rise, long-span world-class large-scale steel structure buildings have spr...

AI Technical Summary

Problems solved by technology

[0002] At present, the welding of domestic low-alloy high-strength steel (Q345 steel and above steel grades) is limited to twin-wire or single-wire submerged arc welding, and when welding joints with mechanical performance requirements, double-wire submerged arc welding is used. , the welding specification must be limited within a narrow range (the welding current generally cannot exceed 650A, and the welding line energy is limited below 45KJ / cm), otherwise, it is difficult to balance the mechanical properties and operational weldability of the joint, which greatly limits the multi-wire welding performance. The Advantages of Submerged Arc Welding Technology

[0003] In the 21st century, super high-rise, long-span world-class large-scale steel structure buildings have sprung up one after another in my country's construction industry. In order to reduce structural weight, reduce manufacturing costs and improve structural reliability, a large number of high-strength and high-toughness thick plates Building structural steel is widely used, so the traditional single-wire submerged arc welding method is extremely difficult to meet the high-efficiency and high-quality welding requirements of this type of building structure

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