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May 29 - posted by xiu umin, 1 like, 0 followers, 1 member, 0 comments, 1 view1. Improper use of the release agent.
The purpose of using an Air Cooler Mould(FURNITUREMOULD) https://www.furnituremould.com/
is to reduce the adhesion between the surface of the plastic part and... more1. Improper use of the release agent.
The purpose of using an Air Cooler Mould(FURNITUREMOULD) https://www.furnituremould.com/
is to reduce the adhesion between the surface of the plastic part and the surface of the cavity, preventing the two from sticking to each other, thereby shortening the moulding cycle and improving the surface quality. Plastic parts. However, since the release effect of the release agent is affected by the chemical action, the physical conditions, and the moulding materials and processing conditions, the optimum variety and amount of the release agent must be determined according to the specific conditions.
2. Process conditions are not properly controlled.
If the size of the injection moulding machine is large, the screw speed is too high, the injection pressure is too large, and the injection pressure is maintained for too long, overfilling may occur, so that the moulding shrinkage rate is less than expected, and demolding is difficult.
In addition, the nozzle temperature is too low, the cooling time is too short and the spray is broken, which causes deformation. Therefore, beyond the failure of the mould clamping and mould release, the injection pressure, injection time, cylinder and melting temperature should be lowered, the cooling time should be prolonged, and liquid flow should be prevented.
3. Plastic overflow
When the injection pressure is too large, the shrinkage rate is less than expected, and it becomes difficult to remove the air cooler mould. If the injection pressure is lowered, the injection time is reduced, the molten material and the mould temperature are lowered, and it becomes easy to remove the mould. In this case, it is more effective to reduce the friction between the plastic and the mould. It is also effective to improve light treatment, remove sidewalls, grind and add ejector pins. When forming deeper parts, it is more helpful to blow compressed air into the mould and parts (see "Cracking, Cracks, Microcracks and Whitening").
4. Glue the pieces to the air cooler mould.
To avoid this, the air cooler mould should be installed correctly. The reason for the large release resistance is due to the low finish or unevenness of the side walls. At this time, a z-shaped pull rod should be placed on the side of the dynamic mould to pull the production. In the mould design, it is necessary to fully consider this phenomenon. It is also effective to set the temperature difference between the two sides.
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May 13 - posted by gong liang, 2 likes, 0 followers, 1 member, 0 comments, 1 viewA Ro System Component(KOKOELECTRIC) https://www.kokoelectric.com/product/ro-system-component/
can have up to four filter elements, each of which needs to be replaced at different intervals of four... moreA Ro System Component(KOKOELECTRIC) https://www.kokoelectric.com/product/ro-system-component/
can have up to four filter elements, each of which needs to be replaced at different intervals of four months to two years. This process may require shutting down the water pressure to the home and some or all of the system is disassembled for maintenance. In addition, the bladder can be washed with a chlorine solution every six months to kill any colonized bacteria.
While some of the newer tankless reverse osmosis systems have overcome the problem of bacterial colonization in bladder cans, these systems have their own set of inherent problems, including:
TDS Creep: Due to the increase in TDS in the water, there is no flushing of the water tank, and the initial water coming out will become terrible. TDS creep is common to all systems using RO membranes, and TDS ions are generated by natural diffusion of membranes from the feed side to the permeate side when the tank is full. This results in reduced or "dirty" water quality.
High failure rate: Some tankless models have been removed from the market due to many problems, including high failure rates. Noise: Some devices operate very noisy depending on the model and function.
Excessive water waste: This is a problem with standard and slotless reverse osmosis systems.
Cost: Using multiple membranes, the total cost per gallon is even more expensive than the old reverse osmosis system.
Here are a few questions to consider when relying on a reverse osmosis system in an emergency:
They need electricity to run, which may not be available;
They need water pressure to work or they can't be used;
They are not portable and cannot be carried around during evacuation;
They are generally recommended for use only with “biosafety” water sources.
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Apr 28 - posted by ko koele, 1 like, 0 followers, 1 member, 0 comments, 1 viewWith the maturity of the water purifier market, local water purifiers have entered a period of steady development, and local water purifier dealers have found that the demand and sales volume of... moreWith the maturity of the water purifier market, local water purifiers have entered a period of steady development, and local water purifier dealers have found that the demand and sales volume of water purifiers are growing rapidly. In order to better occupy the water purifier market, better serve the water purifier consumers. As the operator of the local market, the water purifier dealer, this time should do the basic work well, in order to win more consumers and get a bigger share of the local water purifier market.
How to do a good job in the water purifier market, in fact, one factor is critical, that is, the dealer's preparation for the Water Purifier Spare Parts(KOKOELECTRIC) https://www.kokoelectric.com/
. We know that water purifiers introduce customers to suitable products based on the characteristics of the water quality in the area and the special needs of consumers who purchase water purifiers for water purifiers. Sometimes due to regional water quality differences and the specificity of the installation location. At this time we need a combination of water purifier solutions and water purifiers.
In fact, in order to complete these tasks of clean water, we must prepare a lot of water purifier spare parts, which is critical for the water purifier to play a combined purification effect. For example, the water filtered by the pure water machine can be effectively heated and cooled by the pipeline machine to meet the consumer's demand for instant drinking water. This requires a combination of a pure water machine and a line machine. We should consider two-point PE pipe, various pipe plugs and various water purifier joints on the water purifier fittings. Otherwise, it will be difficult to provide customers with a satisfactory water purification solution that cannot meet the needs of water purifier consumers.
The water purifier spare parts are very important for the end market, which is beneficial to the water purifier consumers to be more satisfied with the products, and can effectively meet the customers' various water purification needs. Eventually increase the reputation of the water purifier in the local market, bringing a lot of secondary sales.
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Apr 18 - posted by xiu umin, 1 like, 0 followers, 1 member, 0 comments, 1 viewOne of the basic principles of injection moulding is that the hot material enters the Furniture Mould(FURNITUREMOULD) https://www.furnituremould.com/
where it cools rapidly to a temperature at which... moreOne of the basic principles of injection moulding is that the hot material enters the Furniture Mould(FURNITUREMOULD) https://www.furnituremould.com/
where it cools rapidly to a temperature at which it hardens sufficiently to maintain the contour of the stamp. For this reason, the temperature of the furniture mould is important because it controls a portion of the entire moulding cycle. Although the melt moves more freely in the hot mould, it is necessary to increase the cooling time so that the cured moulded article can be discharged. On the other hand, when the melt cures immediately in the cold mould, it may not reach the end of the cavity completely. Therefore, the trade-off between the two extremes must be accepted in order to achieve the best moulding cycle.
Units for circulation of water (or other fluids) are commercially achievable. The device is fully connected to the mould by a flexible hose, and the heat of the furniture mould can be kept within limits. The use of plastic moulds in connection with cold water supply selection techniques is unlikely to result in intensive heat treatment.
This is basically the mould designer's obligation to provide a suitable circulation strategy within the mould. Usually, the simplest strategy is to drill longitudinally through the furniture mould. On the other hand, this is not necessarily the most effective mould method.
On the other hand, once drilling is used for the flow of the coolant, these should not be too close to the indentation (less than 15 mm), as this may result in significant temperature changes throughout the process, resulting in moulding difficulties.
The design of the circuit is often complicated because it is not possible to drill very close channels near any other holes in the same template. It can be recalled that the template has a large number of holes or grooves to accommodate the thimble, the guide post, the guide sleeve, the gate bushing, the insert, and the like. The proximity of the flow pattern to how close the other hole depends largely on the depth of the hole required for the desired flow pattern. When drilling deep runners, the borehole tends to deviate from its prescribed path. The usual guiding device is that for drilling holes up to 149 mm in depth, the flow pattern must be no less than 3 mm to any one hole. For deeper flow patterns, this allowance is increased to 6 mm.
In order to obtain the perfect achievable position of the circuit, it is a good practice to lay the circuit as early as possible in the design. An alternative mould comprising a thimble, a guide bushing or the like can then be positioned accordingly.
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Mar 22 - posted by xiu umin, 1 like, 0 followers, 1 member, 0 comments, 1 viewThis type of failure occurs in many Household Product Mould(FURNITUREMOULD) https://www.furnituremould.com/product/daily-necessities-mould/
, showing an area that is usually close to the door, which... moreThis type of failure occurs in many Household Product Mould(FURNITUREMOULD) https://www.furnituremould.com/product/daily-necessities-mould/
, showing an area that is usually close to the door, which has an uneven lining appearance. It may be reminiscent of a groove on a phonograph record, or it may appear to appear as an irregular line pattern, roughly a semicircle around the door.
The reason for unfolding the mark is that the pressurization of the last part of the household product mould is slow. As the back pressure in the household product mould increases, the rate at which the material flows through the gate decreases, and the molten plastic does not have a sufficiently low viscosity to provide good consistency of the mold surface.
In order to overcome this drawback, it is important to quickly fill the mold of the household product at one time. If the machine runs out of power before the filling is complete, the last material can only enter the household product mould at a very slow rate. The pressure in the hydraulic system will gradually increase and will be transferred to the material entering the mold of the household product for further pressurization.
Click Daily Necessities Mould https://www.furnituremould.com/product/daily-necessities-mould/
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