Author: dacheng

As the most advanced and popular equipment shell manufacturing material in the world, SMC composite material has incomparable advantages over other non-metallic materials and metal materials.

Composite materials and metals, polymers, and ceramics are called the four major materials.

SMC material itself has good anti-aging properties. SMC is currently the mainstream material on the market. SMC composite materials can effectively resist the corrosion of seawater, gasoline, alcohol, electrolytic salts, acetic acid, hydrochloric acid, sodium-potassium compounds, urine, asphalt, various acid-alkaline soils and acid rain.

Among non-metallic materials, fiber-reinforced polyester materials have excellent anti-aging properties. Anti-aging performance tests show that the maximum degree of surface aging is small in different locations and climatic zones, so there is no significant effect on the mechanical properties of the product.

SMC material has good impact toughness. Therefore, it is suitable for the entire bathroom, the entire bathroom overhead structure layer, and an air layer is formed between the waterproof chassis and the ground, which can effectively buffer the impact. At the same time, with thermal insulation properties, the skin feels warm and insulated in winter and summer.

SMC material has high plasticity. SMC can be used in a variety of applications according to the design requirements of structural design and surface texture design (leather texture, wood, stone, sand surface, smooth surface and other surface textures), common applications are leather textures, such as aircraft warehouse boards, mobile Auto warehouse interior panels and auto warehouse panels mainly choose texture, which is not only durable or durable, but with the continuous application of new technologies, the surface’s anti-scratch, anti-static, and easy-to-clean properties are greatly improved.

Products made of SMC materials are green and environmentally friendly. SMC is lightweight, durable and has a long (50) year lifespan. At the same time, the formaldehyde emission standard of SMC material reaches E0 standard level, contains no halogen, and has no harmful substances to the human body.

So, how is SMC material made into SMC mould?

The SMC molding process is to put the sheet plastic into a mould that has been heated to a specified temperature, pressurized by a hydraulic press, so that the molten sheet plastic evenly fills the mold cavity, and then after a period of pressure-holding heating and curing, it becomes an SMC mould.   SMC has the advantages of superior electrical properties, corrosion resistance, light weight, easy engineering design, good flexibility, etc. Its mechanical properties can be comparable to some metal materials, so it is widely used in transportation, construction, electronics/electrical, medical, bathroom, etc. industry.

MDC is a very professional SMC supplier. SMC moulds are deeply trusted by customers, involving automotive, industrial, medical, sanitary and other aspects. If you have any SMC mould order requirements, please leave your contact information and we will contact you!

Taizhou Huangyan MDC Mould&Plastic Co.,ltd
No.35-1 Qingfeng Rd, Huangyan North Industrial estate, Taizhou, Zhejiang, china 318020
E-mail:[email protected];
Website: compression mould

The material of automobile bumper has undergone a change from metal to plastic. Early front and rear bumpers are mainly metal materials, riveted or welded together with the frame rail, and there is a large gap with the body, the quality is large, the appearance and body style is difficult to unify.

With the development of automobile industry, engineering plastics have been widely used in automobile manufacturing due to their characteristics of light weight, corrosion resistance and large design freedom. At present, the front bumper of the car on the market is generally made of polyester (such as PBT) and polypropylene (such as PP), which are made by injection molding.

The existing front bumper adopts integrated injection molding, which has the advantage of efficient and mass production, but has the following disadvantages:

First, due to the large size of the parts themselves, the more complex the front bumper modeling parts design, manufacturing is more difficult, higher requirements for the mold;

Second, the current bumper surface in any area of irreversible collision defects, can only be replaced by the whole part;

Third, at present, there are mainly several kinds of plastic front bumper appearance color design: keep consistent with the body, through spray paint color separation design, but also maintain the original color appearance of injection parts without spray paint.

With the improvement of the user’s requirements for car selection and the improvement of the quality and appearance requirements of the oEMS, the manufacturing of automobile bumper is constantly improving from both material and design. Using SMC molding process, SMC bumper mold can more meet the needs of people now on the car. The main reasons are as follows:

First, compared with the traditional integral plastic front bumper post maintenance and replacement, SMC bumper mold is more convenient and low maintenance cost.

Second, SMC bumper mold high temperature resistance, oil resistance, corrosion resistance.

Third, SMC bumper mold strength is stronger, can achieve safe performance.

Fourth, low cost, small weight. Not only that, SMC bumper mold can also in peacetime slight collision, rebound back to the original state, greatly reducing the cost of maintenance.

MDC mold is a very professional SMC mold manufacturer, mainly engaged in SMC mold, BMC mold, GMT mold, LFT mold, FRP mold and carbon fiber mold these hot pressing mold design, development and manufacturing.Welcome to contact!

When it comes to SMC meter box mold, SMC composite materials have to be mentioned. It’s short for Sheet molding Compound. The main raw materials are SMC special yarn, unsaturated resin, low shrinkage additives, fillers and various additives.

It first appeared in Europe in the early 1960s, and was developed in the United States and Japan around 1965. Our country in the late 80 s, the introduction of foreign advanced SMC mold production line and production process. SMC mold has excellent electrical properties, corrosion resistance, light weight and easy engineering design, flexible etc, and its mechanical properties can be comparable with part of the metal material, thus is widely used in transportation vehicles, construction, electrical/electronic and other industries.

So what are the advantages of the electric meter box made by SMC?

１,the use of full insulation safety :SMC meter box mold has high performance insulation resistance and breakdown voltage, can prevent leakage accidents, at high frequency can maintain good dielectric properties, do not reflect, block the spread of microwave, suitable for use in crowded or narrow places, avoid box electric shock phenomenon.

２, corrosion resistance :SMC meter box mold has good corrosion resistance, can effectively resist water, gasoline, alcohol, electrolytic salt, acetic acid, hydrochloric acid, sodium and potassium compound urine, asphalt, various acid and alkali soil and acid rain corrosion.

３, anti-aging :SMC meter box mold has good anti-aging performance, the surface of the product has a layer of uv resistance ability strong protective layer, double protection to make it has higher anti-aging performance, suitable for all kinds of bad weather, can be used for a long time in -50℃ – +80℃ environment. Protection level IP44.

４, impact resistance: three-dimensional mesh molecular structure and enhanced fiber together, so that the SMC mold has good impact resistance, easy to machining, easy to drill and cut, accurate positioning, so that it has a high tensile strength and impact toughness.

5, flame retardant environmental protection: SMC meter box moulds can reach FVO grade flame retardant performance, smoke density rank of 15, do not contain halogen, corrosive harmful substances, no harmful gas when burning, smoke toxicity level shall prevail (ZA1) security level, all material can satisfy the requirements of domestic and foreign best UL94, is a kind of environmental protection material, to meet future development needs.

6, SMC meter box mold heat insulation anti-condensation: is a kind of heat poor conductor, high temperature resistance thermal deformation rate is low, can reduce the impact of environmental temperature difference on the inside of the box, compared with metal materials can effectively reduce the condensation inside the box, condensation.

7, easy installation and handling: SMC meter box mold box adopts plate structure combination, modular installation, suitable for handling, simple installation, on-site assembly or disassembly.

MDC is a professional SMC supplier, manufacturing SMC meter box mold, SMC bumper mold, SMC pedal mold, SMC door plate mold, etc., for more details, you can enter the website to browse carefully!

There are many kinds of materials for making cable supports. At present, metal Angle iron cable supports, cement cable supports and polymer composite cable supports are widely used. For a long time, the power system and the public utility sector using metal Angle iron, aluminum alloy or cement cable bracket laying cable more.

Traditional material of cable support, performance limitation due to material itself, has been in use there are many defects, such as the traditional cable metal stents in harsh environments prone to corrosion, short service life, such as subway, tunnel, chemical industry, such as wet or damp coastal salt fog, use metal stent is easily corroded, the high cost of facilities maintenance, and short service life.

With the need of electric power engineering construction, especially the cable into ground project in the transformation of power grid in large and medium cities, there is an urgent need for a new generation of cable supports with excellent performance, long service life and more efficient, safe and reliable cable laying.

SMC mold has excellent electrical insulation, arc resistance, so it has been widely used in the power system: motor commutator, terminal board, arc cover, cable distribution box shell, terminal distributor, cable bracket and other equipment are used in SMC. The research shows that the SMC polymer composite power cable bracket is the most superior one.

SMC mold has the following characteristics:

①High strength, light weight, weight is only 1/4 of steel, about 1/10 of concrete pipe, convenient transportation, convenient construction.

②The surface of the product is smooth and the friction coefficient is small, which does not damage the cable.

③The whole insulation, no electrical corrosion, can prevent eddy current.

④Good water resistance, can be used in wet environment or water for a long time.

⑤ Heat resistance, cold resistance, fire performance is excellent, can be used at -50℃-130℃.

⑥ Anti-corrosion, no rust, long service life, maintenance free.

The material has no recycling value, can eliminate the problem of theft.

⑧ Good insulation performance, no grounding, can reduce installation workload, save installation cost.

SMC cable bracket mold features:

SMC cable bracket mould can be widely used for laying power cables, control cables and communication cables in cable trench, cable tunnel, cable pipe working well and cable half layer.

① High strength and light weight. SMC polymer composites are mainly composed of glass fiber and thermosetting resin, which can strengthen and transfer load. The tensile strength of glass fiber is very high (3450MPa), and its content, length and laying form determine the strength of bracket products. SMC mold strength can be in the range of 30 ~ 1000MPa. Therefore, the amount, length and laying form of glass fiber can be designed according to the force, output, production technology and price bearing capacity of products.

② No creep. The rigidity of SMC cable bracket mold is twice that of glass fiber reinforced nylon bracket produced by some foreign companies. It does not deform even under long-term load.

③ Strong fire performance. Oxygen index is an important means to evaluate cable fire protection products. Oxygen index refers to the fire resistance of a fireproof product under maximum oxygen conditions. The use in engineering is determined according to the intensity of combustion. For example, under the condition of 30 cables, if cable ignition accident occurs, high temperature heat accumulation above 500℃ can be formed within 4 minutes, which leads to delayed ignition of cables along the direction. The more cables there are, the more combustible mass there is. The oxygen index of SMC cable bracket mold is greater than or equal to 70%. In line with the fire low smoke, no halogen, non-toxic safety requirements, fire performance is strong.

④ corrosion resistance. SMC cable bracket mould has good corrosion resistance, especially suitable for use in wet, salt fog, acid and weak alkali environment.

⑤Good insulation performance. Insulation properties can be adjusted according to the requirements of use. Generally, the insulation resistance is greater than or equal to 1.0 x 1012 ω.

⑥ Easy to use. The embedded bracket can be directly embedded into the wall of the cable trench, the screw hole bracket has been reserved for installation, directly fixed with screws, installation and maintenance is very convenient. Cable bracket bracket adopts circular arc smooth surface, no barb and parting line, will not strain the cable, and can reduce the labor intensity of workers.

⑦ Long service life. General service life: indoor more than 20 years, underground more than 50 years; Service life of aging resistant type: outdoor 20 years.

⑧ good economic benefits. SMC cable bracket mold integral structure, simplify the installation process, improve the installation efficiency, shorten the engineering period, reduce the cost of engineering and its strong corrosion resistance, no maintenance and replacement characteristics, its advantages are obvious.

MDC is a professional supplier of SMC mould, producing and manufacturing SMC cable bracket mould, experienced, deeply loved by customers, if you have demand, please contact us!

The full name of SMC is Sheet Molding Compound. SMC is made of resin paste impregnated fiber or chopped fiber mat and covered with the polyethylene film on both sides. SMC belongs to the range of prepreg felt and is one of the most widely used molding materials in the world.
The SMC molding process is an advanced composite molding method, and the SMC mold is the basis of the molding process. Good product quality is guaranteed by reliable molds. Therefore, the design of the mold is particularly important in the entire SMC mold production work.
In the SMC mold design process, the mold cavity should be designed according to the specific dimensions of the product. In addition to this, it is necessary to select the appropriate material according to the surface quality requirements of the product and the size of the demand. In order to ensure product quality and process feasibility, the cutting edge and the ejection system of the mold should be designed reasonably. In order to make the product easy to demold, ensure product accuracy, strength and facilitate mold processing and other factors, the selection of parting surface should consider the following principles:
? In order to make the product easy to launch and simplify the ejection mechanism, the position of the parting surface should be such that the product can be left in the lower mold as much as possible after opening the mold;
? Minimize the damage of the flash to the appearance of the product, and at the same time, it should be easy to remove the residual flash;
? It is convenient for mold manufacturing and mold parts processing;
?For products with high requirements for radial dimensional accuracy, the influence of flash thickness on product accuracy should be considered, and the vertical parting surface can be taken to ensure the product radial accuracy;
?Ensure the strength of the product and avoid sharp corners and thin walls.