Fracture plugging and repairing method

Abstract

The invention discloses a crack plugging and repairing method, relates to the explosive industry, and aims to solve the problem of potential safety hazards caused by light and heat of welding repair. According to the technical scheme, the crack blocking and repairing method comprises the steps that firstly, the surface, with cracks, of a base material is cleaned up and ground to be flat; then, the cracks of the base material are coated with an adhesive in a flow state; and finally, the cracks of the base material are smeared with paint, the paint is compacted and flattened, and the paint is prepared from putty, a curing agent and a diluent in proportion. After the coating is dried, the outer surface of the coating can be coated with an isolating layer, for example, the outer surface of the coating is coated with an adhesive, and the coating is naturally dried. And after fracture plugging and repairing are completed, leakage detection is conducted on the fracture of the base material, if detection is qualified, repairing is completed, and otherwise, repairing is conducted again. The method is suitable for plugging and repairing cracks on pipelines and equipment made of metal and non-metal materials, potential safety hazards caused by light and heat of welding repair are avoided, and the deformation problem caused by welding repair is also avoided.

Description

technical field [0001] The invention relates to the explosives industry, in particular to a method for sealing and repairing cracks on equipment or pipelines with paint and adhesives. Background technique [0002] Products in the explosives industry are flammable, explosive, poisonous, high temperature, high pressure, and corrosive. The production process requires the use of a large number of metal equipment and pipelines. During the production process, due to the corrosion of equipment by dangerous chemical materials such as acid and alkali, the agitation and vibration of chemical reactions in the equipment, and the change in temperature difference between cold and hot, the equipment is greatly damaged and cracks are prone to appear, so the equipment needs to be frequently repaired and maintained. [0003] Due to the high requirements for production continuity in the explosives industry, there are many dangerous factors in the production line, and a lot of chemical equipmen...

AI Technical Summary

Problems solved by technology

During the production process, due to the corrosion of the equipment by dangerous chemical materials such as acid and alkali, the stirring and vibration of the chemical reaction in the equipment, and the change of temperature difference between cold and hot, the equipment is greatly damaged and cracks are prone to appear, so the equipment needs to be repaired and maintained frequently.

[0003]Due to the high requirements for production continuity in the explosives industry, there are many dangerous factors in the production line, and many chemical equipment and pipelines are required. Conventional welding methods are used to repair cracks, and production needs to be suspended , and then carry out thorough safety treatment on the equipment and pipelines, and then dismantle the equipment and pipelines. If it is inconvenient to dismantle, the entire workshop must be treated safely before welding repairs can be carried out.

Therefore, the conventional welding repair treatment method has defects such as long time-consuming, large economic loss, etc.

[0004]Due to the particularity of the industry and based on safety considerations, some equipment is not allowed to perform dynamic welding operations, and conventional welding repairs are not allowed

In addition, a large number of welding may cause deformation of the equipment, thus affecting the use of the equipment