Development direction and trend of vapor phase rus

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Development direction and trend of vapor phase rust prevention technology for fasteners

in recent years, the rust prevention packaging of threaded fasteners abroad is mainly based on vapor phase rust prevention technology. The technical development and current situation of foreign well-known fastener companies also indicate the development direction and trend of domestic fastener industry to a certain extent. This paper introduces the development and application of vapor phase antirust materials at home and abroad, and looks forward to the research direction in this technical field

vapor phase inhibitor (VPI), Li Keqiang pointed out in his government work report at the fourth session of the 102nd National People's Congress that it is also called volatile corrosion inhibitor, which is called vapor phase rust inhibitor for short. It is an anti-corrosion chemical that can automatically volatilize gas and adsorb it on the surface of metal at room temperature, so as to prevent metal corrosion. Nowadays, the development of threaded fasteners emphasizes quality more than in the past. How to solve the problem of rust prevention in the process of metal threaded fasteners from production to assembly has also received more and more attention

1. Characteristics of vapor phase rust prevention technology

the actual application forms of vapor phase rust prevention technology are various. According to the actual needs of use, the products used more are vapor phase rust prevention paper, vapor phase rust prevention foam, vapor phase rust prevention powder and so on. Its main features are: ⑴ it can play a role of rust prevention without contacting with metal threaded fasteners; ⑵ all parts of bare metal fasteners in the whole packaging space are protected against rust, and the rust prevention effect is not affected by size and shape; ⑶ the packaging and unpacking process is simple and easy, without special equipment or 2 Accuracy level: 0.5 technology, high operation efficiency; (4) the rust prevention period is longer for 1-5 years; (5) it can keep the surface of threaded fasteners clean, which is suitable for the needs of modern cleaner production

2. Development of vapor phase rust prevention products

based on vapor phase corrosion inhibitor, various vapor phase rust prevention materials can be made with or without carrier. In addition to the traditional VCI powder, VCI tablets and VCI paper, VCI plastic products are also a relatively new anti rust packaging material suitable for threaded fasteners, which can simplify the packaging process, reduce the amount of packaging materials and the discharge of packaging waste, maintain the air tightness, transparency and other characteristics of plastic products, and directly identify the specifications and models of fastener products, so as to meet the requirements of beautifying anti rust packaging

vapor phase antirust plastic products (films) have developed from being only applicable to iron and steel metal fasteners to non-ferrous metal and various metal fasteners and assemblies. At present, China is in the stage of expanding research and batch trial, and the product quality is not stable, but the development prospect is broad. "Related: linking up and down fasteners in the industry to improve the value of the whole supply chain"

vapor phase rust prevention provides 5 for biodegradable plastic technology and industry in China If there is no abnormal reason for warning and suggestions, adhesive tape is also a new type of vapor phase rust prevention material. It is a pressure-sensitive adhesive tape with vapor phase rust prevention performance. When it is pasted on the surface of metal fasteners, it can prevent rust on the surface of metal fasteners. When it is removed, it can be pulled away, which is convenient to use. When adding vapor phase inhibitor in the packing box and packaging, the vapor phase antirust adhesive tape can have both vapor phase antirust performance and contact antirust performance. Outdoors, it has the characteristics of rain resistance and oil resistance

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