I. Product Description:

This product belongs to heat-resistant chemical anticorrosive coatings, impellers, shells and turbine blades of heat exchangers, condensers, reaction tanks, chemical treatment tanks and pumps. The machinable coverage area is 0.4 square meters, and the temperature resistance is -62-2 10 degrees.

Second, the process flow:

Surface treatment, glue mixing, gluing, curing and processing.

1. Surface treatment: This is a key step for our successful repair. After determining the repair site, remove the dirt on the surface and clean it with industrial alcohol or acetone. The cleaning area is larger than the surface to avoid re-contamination of the cleaned surface. Then use tools such as sand blasting gun, hand grinding wheel and angle grinder. Roughening its surface, and adhering it immediately after washing and drying again.

2. Glue mixing: the domestic series glass-lined repair agent is in the form of two-component cement, with A as the main material (big box) and B as the curing agent (small box). The ratio of A to B and the product use ratio (volume ratio 5: 1, weight mixing ratio 3: 1) shall be strictly observed. The amount of glue mixed can be determined according to the applicable period, season, construction conditions and actual amount of glue used, and adjusted as much as possible. It is forbidden to use mixed tools, which must be cleaned before use. When mixing glue, keep stirring and rolling until two different colors are completely mixed into one color, and use it up within the specified time after mixing. The glue distribution place should be ventilated, dry and clean.

3. Glue coating: The maximum thickness of the glue coating should not exceed 20 mm First, apply a small amount to the surface to be repaired, press it repeatedly with tools to make the surface to be repaired fully infiltrated, and then apply a large amount. In order to prevent residual bubbles and pores in the glue layer, the glue should move in one direction as far as possible and exert a certain pressure, and the speed should not be too fast. According to the different products selected, the gluing methods can be washing coating, automatic leveling, injection and scraping coating. If processing is needed after curing, allowance must be left.

4. Curing: Curing is the process of forming adhesive layer through physical and chemical action, which will prolong the curing time at low temperature. Only when the adhesive layer is completely cured can its physical and chemical indexes reach the maximum. Heat curing is only to achieve the maximum value of this product. When the requirement does not reach the maximum value, it can also be cured at room temperature.

When the ambient temperature is low, the main material of group A may be hard, and it can be preheated by blower, heater and hot water before use. For example, when the material of group B is hard, it can also be softened, which can improve the bonding strength. Application of Repairing Agent (Polymer Material) for Enamel Reactor in Reactor

A, ceramic metal restorer (enamel reactor restorer):

Ceramic-metal glass lining restorer (enamel reactor restorer) is a kind of polymer alloy restorer, which is mainly used to repair the local damage of glass lining equipment and its parts. The repairing agent for enamel reactor is not only characterized by high wear resistance and corrosion resistance, but also has the ability of rapid repair. The repair agent for enamel reaction kettle can quickly repair the damaged equipment at room temperature without interrupting the production line. The mending agent for enamel reaction kettle is magnetic, but it is not conductive, and the maximum service temperature can reach 230℃.

Second, ceramic metal repair technology

The mending agent is convenient to use, and is mainly carried out according to the following five steps:

1. Surface treatment shall be carried out to remove the deposits on the damaged parts, and the parts to be repaired shall be polished with an angle grinder or a straight-handle grinder according to the principle of "the rougher the better". Finally, clean and degrease the parts with acetone or alcohol (touching with hands or objects is not allowed).

2, batching: pouring the base material and the curing agent into the working plate in proportion, and fully and evenly mixing to form a dark rubber compound.

3. Film coating: evenly coat the prepared materials on the surface of the repaired part with a rubber scraper, scrape off all bubbles, ensure that the surface is in close contact with the repairing agent, and cure at 20-30℃ for 5 hours, preferably with another layer. Note the existing distribution.

4. Mechanical processing can be carried out after curing at 20-30℃ for 5-6 hours, and it takes more than 24 hours for complete curing. The higher the coating thickness and temperature, the shorter the curing time.

5. You can check the curing effect by listening to the tapping sound. Used tools should be cleaned with detergent immediately.

The application of ceramic metal restorer in reactor, tower section and other equipment has achieved good results. Its simple and practical performance not only saves a lot of manpower and material resources for your company, but also brings considerable economic benefits.