Analysis of current situation, downstream market demand and trend of precision structural parts manufacturing industry in China

1, precision structural parts industry development overview

Precision structural parts refer to metal or plastic parts with high dimensional accuracy, high surface quality and high performance requirements and can play a role in protection, support or heat dissipation. Precision structural parts and functional parts such as electronic parts and mechanical parts can be assembled in a certain way to obtain the end product. As an intermediate product, precision structural parts and other functional parts should be fully matched during product assembly, and there are high requirements for precision and quality. According to the difference of forming materials, precision structural parts mainly include precision metal structural parts and precision plastic structural parts.

(1) Overview of precision metal structural parts

According to the "2021 China precision structural parts manufacturing market Analysis Report - Industry competition pattern and Prospect assessment forecast" released by the research Report network. Precision metal structural parts manufacturing integrated use of computer technology, new material technology, precision manufacturing and measurement technology and other modern science and technology, you can choose pressure casting, investment casting, extrusion casting, model forging, stamping cutting, powder metallurgy and other different forming processes to process metal materials into a predetermined shape or size of the product. The commonly used forming processes in the production of precision metal structural parts include die casting, forging, profiles, stamping and powder metallurgy, etc., and the structural parts products under different forming processes have different characteristics.

(2) Precision plastic structural parts

Precision plastic structural parts manufacturing integrated use of computer technology, polymer material technology, precision manufacturing and measurement technology and other modern science and technology, the plastic material heating into a semi-solid, through injection molding, blister, blow molding and other different molding processes into a specific size of the product. The molding process of precision plastic structural parts in the production process includes injection molding, blister and blow molding, among which, the structural parts products using injection molding process have the advantages of complex structure, high strength and high precision.

With the continuous progress of material science, engineering plastics in strength, impact resistance and heat resistance and other performance indicators continue to improve, as well as the development of modified plastics with conductive, wear-resistant, radiation resistance and other characteristics, the use of precision plastic structural parts is increasingly widespread, to plastic instead of wood, plastic instead of steel trend is becoming increasingly obvious.

2, precision structural parts manufacturing industry characteristics

In recent years, China's precision structural parts manufacturing industry has shown the characteristics of accelerated import substitution, intelligent manufacturing to drive industrial transformation and upgrading, and downstream customers' demand for product integration and research and development synchronization has been increasing.

3, precision structural parts manufacturing industry downstream market demand situation and trend

In terms of the industrial chain, the upstream of China's precision structural parts manufacturing industry mainly includes the production and manufacturing of metal materials, plastic materials, molds and production equipment, and the downstream industries include photovoltaic, security, automotive, consumer electronics, communications, aerospace, industrial automation and other application fields.

(1) Photovoltaic industry demand and development trend

Photovoltaic is short for solar photovoltaic power generation system, it is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert sunlight radiation into electrical energy, and is an important way to use renewable energy. The photovoltaic inverter is the brain of the photovoltaic power generation system, the most important function is to convert the direct current generated by the solar panels into the alternating current used by home appliances, and track the maximum output power of the photovoltaic array, and feed its energy into the grid with the least conversion loss and the best power quality. The demand for precision structural parts in the photovoltaic industry mainly includes inverter structural parts, wire components and photovoltaic brackets.

1) The global PV inverter market is growing steadily

According to the data released by the Research Report network, as of January 2020, about 200 countries have jointly participated in the signing of the Paris Climate Agreement, and the participating countries need to formulate and implement greenhouse gas emission reduction plans according to the agreement, which is expected to further promote the development of the global photovoltaic industry. Therefore, driven by the great development of the global photovoltaic industry, the photovoltaic inverter market has maintained a rapid development trend. According to WoodMackenzie data, global PV inverter shipments rose rapidly, from 59.7GW in 2015 to 126.74GW in 2019, with a compound annual growth rate of 20.71%.