Month: October 2022

When you see the picture of the workers trying out the mold below, do you wonder what mold they are making? Smart you may already know that this is the SMC agricultural tractor roof mold! The design, manufacture and production of SMC molds are the business that MDC has been engaged in and loves.

Now let’s introduce the production process of SMC.

Sheet molding compound (SMC) is produced by using SMC unit, which is covered with plastic (such as PE, polyester) film on the top and bottom, and resin paste (containing resin, curing agent, thickener, filler and some auxiliary materials) is impregnated short. Cut fiber (about 1 inch long) or chopped strand mat, semi-finished sheet molding compound (sheet) for use in the dry molding process.

After understanding the SMC process, the SMC mold is ready to come out.

On the market, SMC molds have been used in various fields and penetrated into all aspects of life. Products made by SMC can be seen in railway transportation, industry, medical care, agricultural tools, etc.

Product advantages made by SMC molds

1. Light weight and high strength, the strength of SMC material is equivalent to that of steel, but the quality is only a quarter of that of steel;

2. Flame retardant, Class A flame retardant, smokeless and non-toxic when it exceeds the melting point;

3. Acid and alkali resistance, corrosion resistance, in the high acid and alkali working environment, the SMC material is not easy to undergo physical changes, and its performance far exceeds that of metals;

4. Anti-mildew and antibacterial, effectively inhibit the proliferation of mildew and improve the efficiency of product use;

5. Good fatigue resistance, the fatigue resistance of steel and most metal materials is 40%-50%, and the fatigue resistance of SMC materials is 70%-80%;

6. Excellent electrical properties, can maintain good dielectric properties at high frequencies, not affected by electromagnetic effects, does not reflect electromagnetic waves, and prevents electrostatic adsorption;

7. Thermal insulation, low thermal conductivity, effectively improve the service life of the product;

8. SMC mold has a long service life

If you have an order, MDC’s team will serve you wholeheartedly and customize a complete product production plan for you, please remember to contact us!

MDC wants to tell suppliers why we choose to make SMC molds through this article.

Regarding the origin of the name MDC, MDC means the foothold of manufacture, development and creation.This is also the purpose of our manufacturing mold practice.

Let’s first understand the manufacturing process of SMC mold.

Moulding of SMC mould Parts:

Moulding is made in heated steel tools at temperatures between 125°C and 170°C. It is very important to take note of the setup instructions of each specific material due to the variety of formulations. All known processes are possible as the material will be tailor made for your specific process and application.

Compression moulding cycle

Layers of SMC are placed into the heated tool. Through closing the tool the material fills the cavity and polymerizes. After complete cure the parts are released hot. With compression moulding highest mechanical strengths can be achieved.

Applications

Market penetration for SMC mould is gaining ground in terms of both end-use applications and global demand. Suppliers are reporting more interest in SMC from industrial, consumer, building and construction, energy generation, electrical / electronic, non-automotive transportation, and even aerospace customers.

Increasing performance demands in automotive, electrical, appliance, food service, and energy industries, among others, plus the rising cost of cast metals, is prompting design engineers to consider metals conversion to alternate materials for new products. Thermoset composites have many unique properties – exceptional strength, light weight, corrosion resistance, UV resistance, electrical non-conductance, exceptional thermal properties – that make them desirable over thermoplastics and, in particular, metals, such as cast steel and aluminum.

For instance, thermoset composite materials can be used outdoors and in extreme environments, as they will not rust or corrode. And, because many components can be molded along with the part, and require no final finishing, they are often more economical from a total manufacturing standpoint.

MDC has excellent designers, perfect equipment and strict testing links, we will make customers feel the greatest sincerity.

Please believe that MDC has many years of experience in SMC mold design and manufacturing, which can meet your needs.

SMC is a flat sheet-like compound, produced on a continuous moving belt process. The SMC composites are made from chopped multi end rowing strand sandwiched between two layers of film, onto the resin paste (resin, shrink compensation, fillers, additives and curing agent) has already been applied. The prepreg passes through a compaction system that ensures complete strand impregnation and makes a sheet wound into rolls. These are stored for pre maturing before moulding to allow the prepreg to thicken into a mouldable viscosity.

A typical formulation for a SMC is given below.

Raw material	Parts by weight
Unsaturated Polyester resin	60
Low profile additive	40
Peroxide	1.5
Fillers	150
Release agent	4
Magnesium oxide paste (35% MgO)	2
Glass fibres	25%on total formulation

SMC is a moulding compound made on the basis of glass-fibre reinforced unsaturated polyester resin. The use of Sheet Moulding Compound (SMC) is a very important production process for high volume production.

Bayer AG in Germany was the first to develop a process to produce thermoset polyester sheet molding compound (SMC) during the early 1960s, while Owens Corning Fiberglas was instrumental in bringing the process to the U.S. SMC combined resin, filler, and chopped glass in a doughy, easily handled sheet. The emergence of SMC resulted in the first mass-production process for composites, which offered a wide range of advantages over open-mold hand lay-up and spray-up composite methods.

MDC is good at making SMC molds.MDC is an excellent SMC mold manufacturer.Products with excellent design, MDC has rich experience in the design team, creating mature technical software customers to produce high-quality products.

MDC provides processors with full-process technical service development strength, a full range of technologies, and the development cycle of products using CAD/CAM/CAM design mode.

Sophisticated equipment enables us to do every detail well, and we are committed to developing products with higher precision, better rigidity, more durability and higher technical content.

As a professional SMC mold manufacturer in china,MDC is able to offer a completed solution for you. Please discuss with our team, if you have urgent enquires for SMC mould.

When you asked this question, it was a pleasure for us to answer it for you.

In China, MDC will be your best choice, MDC is a very professional SMC mold supplier. MDC was established in 1997 and has more than 20 years of experience in mold manufacturing.

Molding mold is one of MDC’s largest products, providing development, design and manufacture of SMC mold, BMC mold, GMT mold, LFT mold and other molds.

SMC mold has the advantages of superior corrosion resistance, soft quality, easy engineering design and flexibility, and its mechanical properties can be comparable to some metal materials. Coupled with the low cost of SMC material, SMC is a very popular material in the market. Based on its characteristics, SMC is widely used in automobile, railway, industry, medical, aerospace, sanitary ware, etc.

In the manufacture of SMC molds, MDC has many excellent cases, such as Lamborghini body shells, McLaren doors, Foton Daimler front panels, etc., all of which are SMC molds produced by MDC, and the molds are obtained from customers. Greatly appreciated, MDC also has extensive experience in other SMC application areas, don’t worry about that. These pictures are all products we have made, you can take a look.

MDC has all kinds of international advanced processing equipment, and constantly introduces foreign high-tech to ensure and improve the quality of molding die and meet customer needs, strictly control the quality, pay attention to product quality, and implement strict and orderly implementation of all aspects of the production process. quality control, and at the same time firmly establish a business philosophy to meet user needs.

If you are looking for a suitable SMC supplier, then I believe MDC will be your best choice!

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