ZZ91 Information: With the continuous innovation of materials, the concept of lightweight vehicles has become more and more intense under the current trend of energy saving, emission reduction and innovation. Today's cars have already covered a large number of plastic parts, such as bumpers and wheel covers. License plates, dashboards, door panels, knobs, and even hoods and air intake systems are gradually popularizing plastic parts.

Plastics and plastic machines play an important role in the lightweight process

The role of plastics in lightweighting is not only to reduce the weight of the car, but also to improve the car in terms of cost reduction and safety. Generally, the specific gravity of plastics is 0.9-1.6, and the specific gravity of glass-reinforced composites will not exceed 2.0, while A3 steel is 7.6, brass is 8.4, and aluminum is 2.7. This makes plastic the material of choice for lightweight vehicles. The use of plastics can reduce the weight of parts by about 40%, and the cost can be greatly reduced. In terms of safety performance, plastic bumpers are easier to use than metal bumpers because of their better elasticity and impact absorption. To protect pedestrians; according to DuPont's research, plastics are equally effective in reducing friction.

In the future, the proportion of plastics used in lightweighting will be further improved. It is expected that the use of plastics will reach 50% by 2020. Now, the amount of automotive plastics in Germany, the United States, Japan and other countries reaches 10%-15%, according to one The size of a small car is about 1.5 tons. The annual average production of 50 million new cars is the standard. By 2020, the global demand for plastics will be very large.

On October 22nd, Engel's Michael Fischen and Porsche senior expert and Chartered Engineer Nona explained the lightweight method of injection molding, including the foaming of thermoplastic materials, wood fiber and other materials in the lightweight of automobiles. Determining the use of plastic components is an important means to achieve lightweight. The use of plastics in the lightweighting of automobiles has important implications. It can reduce energy consumption and reduce CO2 emissions, which is conducive to energy conservation and pollution reduction.

China's lightweight policy promotes the development of plastics enterprises

On October 28 this year, the book "Lightweight Development of China's Automobiles - Strategy and Path" was the first to propose a lightweight strategy and a lightweight technology path in China. The newly revised National Passenger Compulsory Standard for Passenger Vehicle Fuel Consumption Limits will be implemented from January 1, 2016. The fuel consumption will be set to a standard value every year until the average fuel consumption of passenger cars in 2020 falls to 5.0 liters. 100 km. Increasingly stringent fuel consumption regulations have prompted all automakers to spare no effort to develop automotive lightweight technology.

Plastic enterprises and plastic machine companies jointly aim at lightweight

Foreign automotive brands are now using high-performance engineering plastics and plastic composites on a large scale. In the future, the doors, roofs, seat components, wheels and structural components of the car, and even the body of the car, may be converted to engineering plastics. The body made of fiber reinforced composite plastic material can reduce weight by 35% compared with steel body; if carbon fiber reinforced composite material is used, it can reduce weight by more than 60%.

Honeycomb sandwich construction has been widely used in automotive interiors, including trunk floor, roof lining and rear window sill. The new Mercedes-Benz smartfortwo uses BASF's ElastoflexE polyurethane foam in a honeycomb sandwich roof. The canopy module consists of a honeycomb sandwich and fiberglass liner, which is about 30% lighter than a normal canopy, but still maintains good strength and resistance. Bending stiffness.

The Polypropylene-based continuous fiber reinforced composite material Tepexdynalite, introduced by the Longsheng subsidiary Bond-Laminates, also presents significant opportunities in lightweight automotive production, especially in large components with high strength requirements, such as backup. Box bottom plate, electric vehicle range extender housing and seat assembly.

The development of lightweight plastics needs to be escorted by innovative processes of plastic machines, long glass fiber reinforced composite materials, carbon fiber reinforced composite materials, and modified low-density, micro-foaming, thin-walled plastic materials, etc. . The development and application of these materials are inseparable from the support of innovative processes.

Long fiber injection molding is an innovative process for lightweight structural parts. The long fiber developed by Arbug is directly injected into the molten plastic by a servo motor driven feeder. The continuous fiber can be cut into lengths of 15-50mm. The two-stage screw ensures the melting of plastic particles. At the same time, the fibers are fed to ensure uniform mixing, and the purpose of increasing the strength is truly achieved. For example, direct injection molding of long fibers in an automobile airbag casing can be directly injection molded with 16 mm glass fiber, and 50% of the glass fiber length can be greater than 2 mm, which is much better than injection molding of long fiber pellets.

Ingers Mould Manufacturing (China) Co., Ltd. exhibited its new FLEXflow servo-driven valve gate system at CHINAPLAS2015, especially for automotive large-scale plastic parts, high-quality optics, high-performance engineering materials, and narrow process windows. Injection molding applications. In terms of cost savings, the clamping force can be reduced by about 20%, and the weight of the plastic parts can be reduced by up to 5%.

The use of MuCell microfoam injection molding technology in automotive manufacturing is becoming increasingly popular. According to media reports, Land Rover plans to use MuCell technology on all models by 2017. Microcellular foaming refers to the use of a thermoplastic material as a matrix, through a special processing process, the intermediate layer of the product is densely packed with closed micropores having a size of ten to several tens of micrometers. The MuCell process is particularly advantageous in terms of weight reduction, with a weight reduction of up to 10%, a cycle time reduction of 50%, and an average cost reduction of 16%-20%, while maintaining the structural strength of the part. As early as 2000, on the basis of cooperation with MIT, Trexel first used this technology to achieve commercial application. Many world-renowned equipment and raw material manufacturers, including Arbug, Demag, Engel, Husky, Dupont, etc., have purchased patent rights for this technology. In order to achieve the goal of lightweighting, MuCell will continue to be the technology of the industry in the future.

The introduction and practice of automotive lightweight slogans have greatly increased the market demand for plastic products, and the plastics market including polypropylene, polyurethane, polyvinyl chloride, thermosetting composite materials, ABS, nylon and polyethylene has been rapidly expanded. In the past two years, polypropylene, the largest variety of plastics for vehicles, has grown at an annual rate of 2.2% to 2.8%. It is estimated that by 2020, the average amount of plastic used in developed countries will reach 500 kg/unit. How can the plastic machine enterprises seize this opportunity to regain their vitality and seek new economic growth points to continue the industry's splendor worthy of all practitioners to ponder.

INCOLOY®

The registered trademark name, Incoloy, is applied as the prefix name to several highly corrosion resistant high temperature strength metal alloys produced by Special Metals Corporation. These Incoloy alloys or superalloys are nickel-based alloys that exhibit traits that include good corrosion resistance in aqueous environments, excellent strength and oxidation resistance in high-temperature settings, good creep-rupture strength, and ease of fabrication.

Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Incoloy brand alloys.

The corrosion-resistant superalloys are widely used in extreme environments where tremendous heat and corrosion resistance is paramount to the integrity of the end product. Chemical and petrochemical processing, power plants, and oil and gas industries widely use these superalloys.

Incoloy Availability

Yuhong Group supplies Incoloy 800, 800H/HT and 825 in the form of plate, sheet, strip, bar, wire, pipe, tubing, pipe fittings, and flanges.

What are the Characteristics of Incoloy ?

Good corrosion resistance in aqueous environments
Excellent strength resistance in high-temperature settings
Excellent oxidation and carburization resistance in high-temperature settings
Good creep-rupture strength
Ease of fabrication

In what Applications are Incoloy alloys used ?

Process piping, heat exchangers, carburizing equipment, heating-element sheathing, nuclear steam-generator tubing
Chemical and petrochemical processing, power plants, industrial furnaces, heat-treating equipment
Pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, pickling equipment

Superalloys, also known as high performance alloys, have become the steel of choice for corrosion resistance and versatility.

*Incoloy® is a registered trademark of Special Metals Corporation group of Companies.