EPS mold information

EPS / EPP particles have changed from raw materials to molded products and have undergone several phase changes or deformation processes as follows. The processes of 1 and 2 are mainly completed in the pre-launch stage. The main purpose of the foam particles entering the mold is to fix the shape, that is, the so-called steaming or burning. The mold forming stage generally includes mold clamping, feeding, steam thermoforming and cooling. , demoulding several processes.

As a process equipment directly produced in production, the forming mold is designed and produced. The molding die is actually a redesign of the product, and it is necessary to try to meet the shape requirements of the final customer; on the other hand, the molding die also needs to consider the actual production process, and needs convenient production and high production efficiency. The types of foaming raw materials of our company mainly include: EPS and EPP. The materials are different and the molding time is different. Therefore, the wall thickness of the corresponding mold is also different. The thickness of the EPS mold cavity is 8~10mm, and the EPP is 12~15mm. To facilitate heating (uniform arrangement of the air plug) and cooling, the thickness is uniform.

What is the EPS Line

EPS decorative lines to fire and will not issue toxic substances, is environmentally friendly high-quality decorative building materials products. EPS decorative lines to fire and will not issue toxic substances, is environmentally friendly high-quality decorative building materials products. Is a new exterior decorative lines and components, more suitable for installation, in the external wall EPS, XPS insulation on the wall, not only reflects the European classical, elegant decorative style, but also to ensure that the main building exterior wall does not appear cold, Thermal bridge effect. It has the advantages of easy installation, economy and durability.

EPS decorative lines is a new type of decorative wall lines and components, more suitable for installation, in the external wall EPS, XPS insulation of the wall, not only reflects the European classical, elegant decorative style, installation of cement components is very difficult, , A long time there will be cracks, poor durability, and the use of EPS decorative lines, with easy installation, economy, durability and other advantages. With the continuous development of the building decoration industry, more and more new materials continue to draw out from the EPS line is more and more people favor the object, there are more and more enterprises into the , some of which Professional companies stand out.

FROm: Fuyang Torch

How should the foaming machine be repaired?

If the fault has been eliminated, the EPS automatic foaming machine will press the button with ‘Fail Clear’ and the previously displayed fault text will disappear. The fault that has not been eliminated will continue to be displayed until all faults are eliminated. After disappearing. Remember: When the device sends a fault alarm signal, do not easily press the ‘Fault Clear’ button. First, you need to find out the problem of the fault display, and analyze the cause according to the displayed information, and finally make the polyurethane The problem with the bubbler was solved.

What is EPS?

The EPS board (also known as benzene board) is an abbreviation for expandable polystyrene board. It is made of pre-fabricated, matured, formed, dried and cut. It can be made into foam products of different densities and shapes, and can produce foam sheets of various thicknesses. Widely used in construction, insulation, packaging, refrigeration, daily necessities, industrial casting and other fields. It can also be used to display the production of venues, merchandise cabinets, advertising signs and toys. At present, in order to meet the national building energy-saving requirements, it is mainly applied to external wall insulation, external wall insulation and floor heating. 2, EPS board insulation system is composed of special polymer cement, EPS board, alkali-resistant glass fiber mesh cloth and facing materials. A new building construction system integrating insulation, waterproof, fireproof and decorative functions. The technology puts the thermal insulation material outside the outer wall of the building, does not occupy the indoor space, and has obvious heat preservation effect, which is convenient for designing the architectural shape.

3. EPS foam is a kind of thermoplastic material. After heating and foaming, it contains 300–6 million independent closed bubbles per cubic meter of volume, and the volume of contained air is more than 98%. Because of the small thermal conductivity of air, It is enclosed in foam and cannot be convected, so EPS is a material with excellent thermal insulation properties.

Uses: used in building interior and exterior wall insulation, geothermal heating, cold storage, cold storage room, light body room, low temperature box, fresh storage box Product specifications (mm): Size: 1250 × 6000 × 600 1000 × 2000 × 500 Thickness: 0.5-600 Note : According to user requirements, the specifications of various specifications (kg/m3): 15-30 thermal conductivity (W/mh): 0.041 tensile strength (kg/m2): 2.5-3.5 dimensional stability temperature (°C): +70

EPS foam is a kind of thermoplastic material. After heating and foaming, it contains 300–6 million independent closed bubbles per cubic meter volume, and the internal air volume is 98% or more. Such a structure gives it many characteristics. Since the density can be as low as 10-30kg/m3, EPS is currently the lightest packaging material. Under high load, this material will be bent, and when it is shocked or falls to the ground, it will buffer. The role of anti-shock; at the same time, because the thermal conductivity of air is very small and is enclosed in the foam and can not convect, EPS is a material with excellent thermal insulation performance.
Uses: Widely used in refrigerators, freezers, refrigerators, etc., and it is also used as insulation materials in civil engineering.

Advantages and disadvantages of EPS insulation system

The EPS insulation system has the following advantages:
1), already in the system, mature technology. Since it has been in use in Europe and the United States for nearly three decades, the building has been built in the United States with 44 floors. Therefore, this technology has formed a system, and the bonding layer, the thermal insulation layer and the finishing layer can be used together, and there are many more mature technical documents.
2), the insulation effect is good.
3), because the insulation material uses expanded polystyrene, its price is not very expensive, making the whole system affordable. User-friendly.
4) There is no complicated construction process. After a brief training, the general construction unit can master the construction essentials and facilitate the promotion of technology.
Disadvantages of the EPS system:
1) Due to the nature of the board itself, its strength is not high, the bearing capacity is low, and the external facing brick needs to be strengthened.
2), the board has to go through a period of maturity before leaving the factory, it needs to be placed for a period of time before it can be used. If the curing time is insufficient, the quality of the sheet cannot be guaranteed, and the sheet shrinks after construction, causing the system to crack.
3), poor combustion performance, EPS material causes it to remain at an abnormal level, Beijing Radio’s fire is caused by the extremely low combustion performance of EPS.
4), not environmentally friendly, EPS is not environmentally friendly in the production process, it will eliminate a lot of waste and gas, and has a great impact on the surrounding environment.
5), poor thermal conductivity, resulting in not meeting the current 75 energy-saving standards promoted in China, basically EPS belongs to the insulation materials being eliminated.

Hangzhou Huasheng  eps Machine

How is Expanded polystyrene foam Manufactured?

Expanded Polystyrene foam is manufactured from the by-products, or left overs, from the oil refining process. FPM is a “Block Molder” of EPS which means we mold EPS into large blocks 36” x 48” x 120” in size. These blocks are then cut into smaller usable sizes that vary with the application. The description below explains how manufactures the EPS foam pieces and sheets you are familiar.

Buys raw material in the form of resin or beads of styrene. Each bead has a microscopic dot of Pentane formed into its center. This material is furnished in air tight bags. These bags keep the beads “fresh” by assuring that the Pentane within each bead can not escape into the atmosphere and render the material.

These beads of Styrene are about the size of a grain of salt and have a similar consistency. It is crucial that the beads are stored in a tightly controlled environment where the amount of Pentane within their plastic shell remains consistent. Each step of EPS production requires strict adherence very tightly controlled quality standards.

These beads of resin are loaded into a machine called a “pre-expander”. It does exactly what the name implies. Steam is injected into the beads at 212 degrees F. The heat accomplishes two things. The wall of each bead is softened and becomes flexible and the increased temperature also causes the Pentane to expand within the softened beads. The beads puff up like popcorn to 30 times their original size.

The next step is the molding process. It is at this point that the individual expanded beads are molded into a single, homogeneous block. This is the most crucial stage in the production process and it is essential that very strict quality control standards are adhered.

How to Make EPS Foam

EPS foam is a highly durable material that is used in a large number of consumer products. EPS stands for Expandable Polystyrene. This expanding foam compound is an excellent insulating material. It is used in refrigerators, coolers, helmets and many other products that are used every day. The large number of uses for EPS foam creates a high demand that makes this a very profitable business to be part of. If you have a manufacturing background, it is entirely possible to make EPS foam products yourself.

EPS foam is a highly durable material that is used in a large number of consumer products. EPS stands for Expandable Polystyrene. This expanding foam compound is an excellent insulating material. It is used in refrigerators, coolers, helmets and many other products that are used every day. The large number of uses for EPS foam creates a high demand that makes this a very profitable business to be part of. If you have a manufacturing background, it is entirely possible to make EPS foam products yourself.

Impregnate the polystyrene resin granules with the blowing agent. When making EPS foam, Pentane Gas (C5H12) is normally used as the blowing agent. A small amount of pentane gas is injected into the resin in a process known as Polymerization.

Begin the pre-expansion process. After the resin granules have been impregnated, place them into your steamer and use steam to heat the granules. The heat will cause a reaction with the granules and the blowing agent, and will cause the polystyrene granules to expand to 50 times their original size. At this stage you have a large number of individual foam pellets that are ready to be molded.

Decide on what method of molding your will use on your EPS foam. There are two standard options for molding. The first method is to use a “shape molding” machine. This method will mold your foam to the precise size and shape of the product being developed. The second option is to use a “block molding” machine. Doing block molding creates large blocks or even sheets of EPS foam, which can later be cut to the size and shape that the customer requires. It is important to decide which method applies to the EPS foam you will make, so that you can choose an appropriate molding machine.

Pour the EPS granules into your mold and complete a second heating. The second time the granules are heated with steam, they will swell within the mold and become pressed together into one solid piece of foam. It is this mold heating process that transforms them from individual grains to a sheet of EPS foam.

Remove the EPS foam product from the eps foam mold and allow it to cool. The cooling time will depend on how large your foam item is. Allow the foam to sit and cool until it has reached room temperature. Inspect the mold for any cracks or damage before approving it for use.

EPS foam cutting machine works

The EPS foam cutting machine is light and strong with amazing cutting accuracy and repeatability. The heating wire/fan box is a place for fixing the heating wire. When cutting, the micro-fan is used to cool the heating wire, and a special spring is used to compensate the elongation of the heating wire after being heated. High-performance heating wire, this high-life alloy wire is made of nickel, chrome, cobalt, molybdenum and titanium. It is long in length and can speed up cutting and has a long life. The EPS cutter motion analysis processing software controls the fully automatic turntable so that it can cut rotating bodies such as cylinders and spheres. The side bracket is a fully automated tool controlled by EPS cutter motion analysis software that allows you to cut out all possible rotating bodies such as cylinders, small pillars and more. The material is mounted on a nail located on the nail plate.

The EPS foam cutting machine is light and strong, and has amazing cutting precision and repeatability. The electric heating wire/fan box is the place where the heating wire is fixed. When cutting, the micro-fan is used to cool the heating wire, and the electric heating is compensated by a special spring. The elongation of the silk after being heated

The EPS foam cutting machine is light and strong with amazing cutting accuracy and repeatability. The heating wire/fan box is a place for fixing the heating wire. When cutting, the micro-fan is used to cool the heating wire, and a special spring is used to compensate the elongation of the heating wire after being heated. High-performance heating wire, this high-life alloy wire is composed of nickel, chrome, cobalt, molybdenum and titanium. It is long-extendable, which can speed up the cutting speed and has a long life. The speed is not very fast, the amount of glue is relatively small, causing the raw material to be plasticized too much, and the particle material slips in the barrel, causing the screw speed to fluctuate, causing the extrusion pressure to fluctuate, resulting in temperature control imbalance. Therefore, before the start-up of the insulation extrusion board manufacturer, all preparations should be made to minimize the waiting time during the startup temperature rise process, and the replacement template should be fast and neat. If the screw of the equipment used is cooled by oil cooling, it is related to the setting of the instrument in the mold thermostat, the smoothness of the pipeline, and the oil quality. If the equipment (screw and barrel) is cooled by circulating water, scale and solenoid valve failure are the main factors.

Eps foam machine to pay attention to the key points when foaming

With the rapid development of China’s economy, China’s construction scale will grow rapidly in the next few years, and the demand for building insulation materials is also growing. The polyurethane material has excellent performance, which can maintain the thermal insulation performance of energy-saving building roof and exterior wall, and prevent the insulation layer from leaking. Some architects say that polyurethane insulation materials have good insulation properties outside the outer wall and high strength, which is a very solid polyurethane foam machine. The building insulation market supports the demand for polyurethane foaming machines. Therefore, the foaming machine occupies a high position in the construction industry.

The foaming of the eps foaming machine is a complicated physical and chemical reaction process. Therefore, the polyurethane foaming machine has mastered the key control points after foaming, and the fluctuation of the raw materials, mold preheating temperature and aging time selected for eliminating mechanical failure will also directly affect The quality of the foaming properties of polyurethane foams, such as the slight operation of the foam process, can lead to erroneous vacuoles, so we must understand the point at which the foaming machine is foamed:

First, we need to know polyisocyanates, polyethers, blowing agents, catalysts and foam stabilizers in black and white materials that directly determine the chemical nature of the chemical reaction and polyurethane foam. Choosing a qualified foaming material company is the basic condition for producing qualified polyurethane foam.

Secondly, the raw material liquid and the injection amount should strictly control the ratio of the black substance, and the polyether and cyclopentane are combined. When the total amount of injection is constant, vacuoles may occur when the proportion of carbon black is too large. When the white matter ratio is too large, soft foam will appear. When the proportion of cyclopentane is too large, a foam will appear. When the ratio of black and white material is out of balance, the mixing is uneven and the foam shrinks.

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What is a normal EPS

Ordinary EPS insulation materials have an oxygen index of less than 22, which is in the face of open flames, and the more and more prosperous, the combustion performance grade is B3 grade is flammable material. In order to improve the fire performance of EPS, in the ordinary type of EPS resin, adding some flame retardants can greatly improve the oxygen index of EPS. According to the performance of the flame retardant and the amount of addition, the flame retardant EPS is divided into B2 flame retardant EPS and B1 flame retardant EPS. Flame-retardant EPS is a self-extinguishing material, that is, the flame-retardant EPS will also be ignited in the event of an open flame, but will extinguish itself after leaving the fire source. Therefore, the flame retardant EPS is also called self-extinguishing EPS.

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