Polyurethane insulation steel pipe is a kind of high-efficiency insulation material widely used in construction, petroleum, chemical industry and other fields, and its excellent thermal insulation performance and structural strength make it an indispensable part of these fields. This article will introduce the manufacturing process and characteristics of polyurethane insulated steel pipes in detail.
1. The manufacturing process of polyurethane insulation steel pipe.
The manufacturing process of polyurethane insulated steel pipe mainly includes the following steps:
1.Preparation stage.
In the preparation stage, steel pipes and polyurethane materials need to be prepared. The surface of the steel pipe needs to be treated with shot blasting and rust removal to remove the dirt and rust on the surface, and make its surface roughness meet certain requirements. Polyurethane materials need to be mixed in a certain proportion and thoroughly stirred by a stirrer.
2.Spraying stage.
In the spraying phase, the polyurethane material is evenly sprayed on the surface of the treated steel pipe by means of a spray gun, so that it forms a dense protective layer. The thickness and uniformity of the spray need to be tightly controlled to ensure its thermal insulation performance and structural strength.
3.Curing stage.
In the curing stage, the sprayed steel pipe needs to be placed in a high-temperature oven, and the polyurethane material is gradually cured by heating. The temperature and time of curing need to be tightly controlled to ensure the best performance of the polyurethane material.
4.Detection phase.
In the testing stage, it is necessary to carry out quality inspection on the cured polyurethane insulation steel pipe, including appearance inspection, thermal insulation performance testing, pressure resistance testing, etc. Only polyurethane insulated steel pipes that meet the quality requirements can be put into use.
Second, the characteristics of polyurethane insulation steel pipe.
Polyurethane insulated steel pipe has the following characteristics:
1.Good thermal insulation performance.
Polyurethane materials have excellent thermal insulation properties, which can effectively block the transfer of heat, thereby reducing energy consumption. At the same time, the closed-cell structure of the polyurethane material can effectively prevent the penetration of moisture, thus keeping the inside of the pipe dry.
2.High structural strength.
The surface of the polyurethane insulated steel pipe is covered with a strong protective layer, which can effectively prevent the damage of external factors, such as collision and extrusion. At the same time, the polyurethane material itself also has high strength and hardness, and can withstand large pressure and bearing capacity.
3.Adaptable.
Polyurethane insulated steel pipes can adapt to various complex environmental conditions, such as high temperature, low temperature, acid and alkali, etc. At the same time, its installation and maintenance are also relatively convenient, and can adapt to different construction conditions and requirements.
4.Long lifespan.
The service life of polyurethane insulation steel pipe is long, generally more than 50 years. Due to its excellent thermal insulation performance and structural strength, it is a relatively economical pipe insulation material.