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We can't avoid washing clothes in our life, so we need to mention our laundry trough. The material of the laundry trough is PVC, artificial stone, stainless steel and ceramic, and so on.

Although PVC is cheap, but not durable, the thermal stability of artificial stone is poor, as for stainless steel, although durable, but relatively easy to rust. Ceramics are durable and easy to clean, but they are heavy and fragile.

Therefore, we have to mention the SMC laundry tank mold, SMC tool material by GF (special yarn), UP (unsaturated resin), low shrinkage additives, MD (filler) and a variety of additives. SMC composite materials and SMC molded products have excellent electrical insulation, mechanical properties, thermal stability and chemical corrosion resistance.

SMC laundry tank mold is not only relatively low cost, but also durable, not easy to rust, strong hardness and light quality, more and more become the choice of laundry tank production material.

SMC mold (sheet molding compound mold) is a plastic mold that will be filled with resin, The compression mold of reinforcing fiber and filler is prefabricated into a sheet, and then the sheet is heated and formed in a hot mold to make a molded part. SMC molds can play an important role in medical applications, such as:

1.Transparent containers: SMC molds can be used to manufacture transparent medical containers, such as test tubes, centrifuge tubes, petri dishes, etc. These vessels have high transparency and optical performance, which can help doctors observe processes such as cell culture, drug response and virus detection. In the manufacturing process, SMC molds can achieve different shapes and sizes through a variety of molding processes, such as stamping molding, injection molding, etc., and can achieve different optical properties through surface treatment, such as polishing, optical coating, etc.

2.Operating bed: The operating bed is another important application field. The shell and base of the operating bed need to have high strength and rigidity to ensure the stability and safety of the operating bed. SMC molds can realize complex shapes and structures through mold design and molding process, and at the same time, fillers and fiber reinforcements can be added to improve strength and rigidity.

3. Hospital beds and wheelchairs: Hospital beds and wheelchairs are also important applications of SMC molds in medicine. The shells and bases of these devices need to be high-strength and lightweight, so that patients and medical staff can move and transport. SMC molds can achieve different shapes and sizes through a variety of molding processes, and fillers and fiber reinforcements can be added to improve strength and lightweight properties.

4. Diagnostic equipment: SMC molds can be used to manufacture shells and structural components of medical diagnostic equipment, such as X-ray machines, CT machines, nuclear magnetic resonance machines, etc. These devices need to have high precision and stability to ensure diagnostic accuracy and safety. SMC molds can realize complex shapes and structures through mold design and molding process, and at the same time, fillers and fiber reinforcements can be added to improve strength and stability. In addition, the surface quality of SMC molds is also very important, and different surface finishes and optical properties can be achieved through a variety of surface treatment technologies, such as grinding, painting, etc.

5. Others: The medical device shell made of SMC mold has a smooth surface, easy to clean, and has high strength and rigidity, which can ensure the stability and safety of the device. The handles and housings of surgical instruments can also be made of SMC molds, which have high strength, rigidity and corrosion resistance, and at the same time have smooth surfaces, which are easy to clean and sterilize. The housing and base of dental equipment can be made of SMC molds, which have high strength and rigidity, and at the same time have a smooth surface, which is easy to clean and disinfect. The housing and structural parts of medical imaging equipment can be made of SMC molds, which have high precision and stability, and at the same time have a smooth surface, which is conducive to optical imaging.

In general, SMC molds can be used to manufacture various parts of medical equipment. The advantages are that the material has the characteristics of high strength, corrosion resistance, high temperature resistance, etc., as well as good formability and surface quality, as well as good optical properties, and It is also beneficial to the weight reduction of medical equipment and the reduction of manufacturing cost.

MDC Mould is a well-known mold manufacturer at home and abroad. The picture below is the MRI machine Shell Mold made by MDC Mould. The molds developed by our company have the advantages of high difficulty, long life, short cycle time, reasonable price, prompt delivery and considerate service, especially in the field of SMC molds, which are favored by customers at home and abroad. If you have any needs, welcome to contact us.

SMC(sheet molding compound) mould has excellent corrosion resistance, soft quality and easy engineering design, flexible and other advantages. Its mechanical properties can be compared with some metal materials, and the products manufactured by it have the advantages of good rigidity, deformation resistance, and wide temperature range. SMC molds require heating channels instead of cooling channels in injection molds. Normal heating systems are steam, oil, electricity or high pressure water. The working temperature of SMC mold is usually 140 degrees to 160 degrees. When designing the temperature system, it is necessary to keep the mold surface at a close temperature. Molds with uniform temperatures will fill more easily and produce parts with less warpage, improved dimensional stability and a uniform surface appearance.

In the process of mold processing, different mold materials and shapes will affect the heating method, and different heating methods will also have different effects on the performance and processing efficiency of the mold. This article will introduce in detail the common mold heating methods, their respective characteristics, applicable scenarios and their impact on SMC molds.

Electric Heating

Electric heating is a mold heating method commonly used at present. The electrothermal effect occurs on the surface of the mold by electrification, thereby heating the mold. It can be achieved by heating rods, convection heating and other different ways. Electric heating has the advantages of simple operation, fast heating speed, uniform and stable heating temperature, high temperature control accuracy, and no need to wait for heating or cooling time. It is suitable for mold heating of all materials. At the same time, electric heating can also realize the control of different temperature regions through the adjustment of heating elements, so as to realize different processing schemes and patterns. However, electric heating has a relatively large demand for electricity, and the cost of using an electric heater is also relatively high.

Electric heating is often used for heating plastic molds, especially for molds that require high precision, such as SMC molds. Compared with traditional heating methods, electric heating can control the mold temperature more precisely, so that the manufactured molds are more accurate and the shell quality is higher.

Steam Heating

Steam heating means that steam is transported into the mold through pipelines for heating. The temperature control of steam heating is more precise, and the heating speed is relatively fast. Steam heating is suitable for molds with complex and irregular shapes and needed temperature is not too high. However, steam heating requires a complete steam pipeline and supporting equipment. This method is more energy efficient than electric heating, but relatively consumes more energy. Steam heating is a commonly used mold heating method. Its basic principle is to use the heat energy of high-temperature and high-pressure steam to contact the mold, thereby increasing the temperature of the mold to meet the processing requirements.

This heating method has the following characteristics:

1. Uniform heating: Steam can be evenly distributed on the surface of the mold, so that the entire mold is heated evenly, avoiding thermal stress caused by excessive temperature gradient.

2. Efficient and safe: The steam heating speed is fast and the efficiency is high. At the same time, because there is no open flame in the steam heating process, it has higher safety.

3. Precise temperature control: When steam is heated, sensors can be used for real-time monitoring and adjustment, so as to achieve precise temperature control.

Steam heating is widely used in plastic molds, die-casting molds, rubber molds, etc., and can also be used for preheating and annealing of metal molds.

Oil Heating

Oil temperature heating, also called heat conduction oil heating. It means that the electric heating tube is placed in the heating oil tank, and the high-temperature heat transfer oil is used to transfer heat to the mold for uniform heating and maintain a certain temperature range. This method is easier to control the temperature, can achieve precise temperature control, and heat evenly, so as to ensure that the mold will not be damaged due to excessive temperature. Heat conduction oil can transfer high-speed heat and heat up quickly, so it is suitable for some bigger and complex shapes molds and molds that require high temperature heating. At the same time, heat conduction oil heating can also maintain the flatness of the mold surface during mold making and processing, avoid problems such as slack and cracks, and make the mold surface deform more uniformly, and it is not easy to appear towering and uneven. However, oil temperature heating also has some disadvantages, for example, the heat transfer oil needs to be replaced frequently during operation, and the heating speed is relatively slow.

The above are common heating methods, and the selection of different mold heating methods depends on factors such as mold material, shape and processing requirements.

As a professional SMC mold supplier, MDC Mould have experienced engineers, imported equipment, precise processing flow, years of research in SMC mold design and SMC mold technology, and a supporting SMC mold trial line to ensure that SMC molds can meet customer needs from initial design to subsequent mass production.

Last time we introduced Spark Erosion Machine we use in the manufacturing of SMC molds. Today we are gonna to talk about another machine we use to improve the machining accuracy – CNC precise machines.

CNC (Computer Numerical Control) precision machine is a type of machine tool that uses computerized control and precision tools to produce high-precision parts. The machine is programmed using a set of instructions that control the movement of cutting tools, achieving high accuracy and repeatability during the manufacturing process.

CNC precision machines are used in various industries, including aerospace, automotive, and medical treatment, where accuracy and accuracy are crucial. These machines are capable of machining SMC molds with complex shapes and features while ensuring high-quality surface finish. Some examples of CNC precision machines include CNC lathes, CNC milling machines, and CNC milling machines.

SMC (Sheet Molding Compound) is a high-strength, lightweight composite material composed of resin, glass fiber, and fillers. SMC molds are commonly used to manufacture various types of complex shaped parts, such as automotive shells, aircraft components, ship parts, and so on. Therefore, in the manufacturing process of SMC molds, machining accuracy is a very important aspect.

Spark Erosion Machine, also known as electrical discharge machining machines, is a method of cutting workpieces through electrical discharge. In this process, the gap between the electrode and the workpiece is filled with a liquid medium (usually deionized water), which can generate electrical discharge between the electrode and the workpiece, and can also wash away the debris of the material being cut.

The main working principle of a spark erosion machine is to generate electrical pulses on the surface of the workpiece to discharge electricity, which ionizes the medium between the electrode and the workpiece, thereby generating a series of electric spark discharge phenomena. Each electric spark discharge process will impact and detach small particles on the surface of the workpiece, and the electrode will gradually consume. Through repeated electric spark discharge processes, small particles on the surface of the workpiece are gradually worn and reduced, ultimately forming the desired shape and profile.

Advantages: The spark erosion machine has high machining accuracy and can accurately process complex shapes and contours in SMC molds. That is to say, the obtained SMC mold not only has high accuracy, but also has high surface quality. At the same time, the processing process of a wire cutting machine does not generate thermal deformation or cutting stress, so it does not adversely affect the performance of SMC materials. This makes spark erosion machine one of the ideal choices for manufacturing SMC molds.

SMC (Sheet Molding Compound) compression moulding is a manufacturing process used to produce composite materials. It involves compressing a pre-prepared mixture of chopped fibers, typically glass or carbon, and a thermosetting resin, such as polyester or epoxy, between two heated moulds to create a finished part.

The Process of SMC Compression Moulding:

Preparing the SMC: Sheet Molding Compound is typically produced by mixing chopped fibers (such as glass or carbon) with a thermosetting resin, along with other additives such as fillers, pigments, and release agents. The mixture is typically in the form of a sheet or a mat.

Placing the SMC in the mould: The SMC sheet is placed in the mould, which is usually made of steel and consists of two halves that can be opened and closed. The mould is typically coated with a release agent to prevent the SMC from sticking to the mould during the curing process.

Closing the mould: The two halves of the mould are closed, and pressure is applied to compress the SMC sheet. The pressure is typically applied hydraulically and can range from several hundred to several thousand pounds per square inch (psi), depending on the specific material and part requirements.

Heating and curing: The closed mould, with the compressed SMC, is heated to a specific temperature, typically in the range of 120 to 180 degrees Celsius (250 to 356 degrees Fahrenheit), depending on the resin used. The heat causes the thermosetting resin to cure and harden, forming a solid composite part.

Cooling and demoulding: After the curing process is complete, the mould is cooled, and the pressure is released. The mould is then opened, and the finished SMC part is demoulded. The part may require additional trimming, drilling, or other post-processing operations to achieve the desired final shape and finish.

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.

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;

The SMC SHOWERBASE is a reliable and practical solution for your shower in your house. With a simple design, the SMC SHOWERBASE is lightweight, self-supporting and easy to install. It's gloss finish and SMC material makes it easy to clean.

As a professinal mould manufacturer, MDC mould has produced various sizes of SMC showerbase mold so far, like 1000x1000, 1200x900, 1300x800, 1500x800, 1700x800, 1500x1200mm.

SUASE MOULD , a mold manufacturer in China, participated in the INTERMOLD & KOPLAS exhibition in South Korea from March 14th to March 18th, 2023, and achieved great success. During the exhibition, representatives of the company had in-depth exchanges with exhibitors and clients, which led to the successful outcome.

INTERMOLD & KOPLAS exhibition is one of the largest and most influential exhibitions for molds, plastics, and rubber in Asia. It attracts manufacturers and exhibitors from all over the world, providing the latest industry technology and products, as well as a platform for professionals to share and exchange information.

During this exhibition, SUASE MOULD showcased its latest products and technology and had in-depth exchanges with exhibitors and clients. Our products received widespread recognition and praise from visitors. At the same time, we had the opportunity to learn about the latest industry trends and technological developments, expanding our market vision and industry knowledge.

SUASE MOULD has always been committed to providing advanced and high-quality products and services and establishing long-term cooperative relationships with clients. This exhibition provided an important opportunity for us to discuss industry development, share experiences, and strengthen cooperation with our clients. We greatly appreciate the support and trust of our exhibitors and clients.

SMC, a kind of glass fibre reinforced plastic, is the abbreviation of Sheet moulding compound. The main raw materials are GF (special yarn), UP (unsaturated resin), MD (filler) and various low shrinkage additives and auxiliary agents. It first appeared in Europe in the early 1960s. Around 1965, the United States and Japan developed this technology one after another. SMC composite material is a reinforced polyester containing glass fibres. It has the advantages of superior mechanical properties, corrosion resistance, and impact resistance. Glass reinforcement is between 10% and 60%, and the length is slightly longer than bulk moulding compound (BMC) - between 6mm and 50mm. The combination of long fibers and strong resins produces a strong, cost-effective material.

Compression molding (also called compression moulding) is a method in which powdery, granular or fibrous plastic is first put into the mold cavity at the molding temperature, and then the mold is closed and pressurized to form and solidify it. Molding can also be used for thermosetting plastics, thermoplastic plastics and rubber materials. Compression Moulding is widely used in industry, agriculture, transportation, electricity, chemical industry, construction, machinery and other fields. As a China compression mold supplier, MDC combines more than 20 years of compression molding experience with the latest compression molding technology to benefit our customers. MDC also fully understands that what are the advantages and disadvantages of compression molding.

Advantages of compression molding:

The loss of raw materials is small and will not cause too much loss (usually 2%~5% of the product quality).

The internal stress of the product is very low, the warping deformation is also very small, and the mechanical properties are relatively stable.

The wear of the mold cavity is very small and the maintenance cost of the mold is low.

The cost of the molding equipment is lower, the mold structure is simpler, multiple cavities can be produced at lower cost, and the manufacturing cost is usually lower than that of the injection mold.

It can be used to form large flat products. The size of products that can be molded by mold pressing is determined by the mold clamping force of the mold pressing machine and the size of the mold plate.

Molds with a large number of cavities can be placed on a certain template to improve productivity. Automatic production can be realized through automatic feeding and automatic taking out of products.

This can form a uniform part without any trace. The surface is smooth without secondary modification. The product has high dimensional accuracy and small shrinkage.

It can be produced in batch with relatively low price.

it can make very complex parts. Although the technology can't quite reach the production speed of plastic injection molding, it does offer more geometry than typical laminate composites.

It also allows for longer fibers than plastic injection molding, making the material stronger. Therefore, compression mould can be regarded as the intermediate zone between plastic injection molding and laminate composite manufacturing.

Disadvantages of compression molding:

The whole molding cycle is long and the efficiency is low. The time required to start and repeat the operation sequence is between 1-6 minutes.

At present, it is not suitable for molding complex products with depressions, side slopes or small holes.

When burrs occur, they must be trimmed manually, which will not only reduce productivity, but also increase labor costs and material waste.

The disadvantages of compression molding are that the mold manufacturing is complicated, the investment is large, and the compression machine is limited, which is most suitable for mass production of small and medium composite products.

For thermosetting plastics, when the molded products have slight defects, they are often unable to be recycled, which requires high mold surface and material filling requirements.

In recent years, the use of composite materials in commercial aviation aircraft has increased significantly and has become a pillar material in the aviation field. According to the forecast of the International Air Transport Association (IATA), the demand for composite materials in the global air transport industry will increase to $600 billion in the next 20 years, accounting for more than 70% of the total demand.

Among them, SMC molds can manufacture complex and detailed parts with extremely high precision. In aircraft manufacturing, SMC molds are usually used to manufacture aircraft shells, bulkheads, interiors and other components.

One of the advantages of using SMC molds to manufacture aircraft components is that it can produce lightweight, strong, and corrosion-resistant parts. These characteristics are very important for aircraft because they can reduce the weight of the aircraft and improve its performance, thereby reducing fuel consumption and reducing carbon emissions. It can also extend the time of staying in the air, thus enabling the aircraft to fly higher and faster or have better maneuverability. At the same time, the aircraft can also install more equipment to improve the overall performance of the aircraft. Reducing the quality of the structure can greatly reduce the use cost of the aircraft and achieve obvious economic benefits.

On the other hand, SMC products also have high processing performance and can be made into various complex shapes and sizes, which can help designers realize their creativity and imagination.

Composite material is an important material, which has been widely used in aviation, aerospace, automobile, construction, electronics and other fields. Parts made of composite materials have high strength, light weight, and high rigidity. The Jeep car of Chrysler Group Co., Ltd. and the “Seastar” CD2 aircraft of Dornier Starfish Malaysia all use advanced composite materials such as SMC molds and carbon fiber composite materials.

But the manufacture of composite materials usually requires raw materials, technologies and equipment from many different countries or regions, so international cooperation and trade are inevitable.

However, under the current international situation, factors such as politics, economy, and security among countries may lead to decoupling among countries. For example, some countries may adopt protectionist policies, restrict the export of raw materials and technologies, or impose trade restrictions on products from certain countries. These constraints can have implications for composite manufacturing and supply chains, affecting product quality and cost.

In addition, some countries may restrict or prohibit the import of specific products or technologies from certain countries, which may affect the manufacture and application of composite materials. For example, when security or privacy concerns arise in certain countries, electronic products or technologies from that country may be restricted or prohibited from entering other countries’ markets.

Therefore, composites may be affected by decoupling and trade restrictions between countries. This requires companies and manufacturers to take corresponding measures to deal with it, such as dispersing production bases among multiple countries, exploring alternative raw materials and technologies, and strengthening quality management and testing.

MDC Mould is a professional supplier of advanced composite materials such as SMC molds and carbon fiber composite materials. It introduces high-quality raw materials, has superb technology, and is honest and trustworthy. If you need, welcome to contact us.