MASTER plastic rattan garden furniture mold temperature

Conventional injection molding melt filling time is very short , often simplified flow analysis isothermal filling , however , this simplification does not apply in the micro- injection molding . Micro- structure of small and micro injection molding products runner size , surface area to volume ratio, large cooling area per unit volume of the melt . When MASTER injection moulder into the micro- structure of the melt , the melt volume is small, contained fewer calories , then melt temperature will drastically reduce the temperature of the cavity wall , and the rapid formation of condensate layer . Polypropylene (PP) , for example, according to the formula ( 1 ) estimated from the thickness of the condensate layer micro- structure and micro- structure size is quite possible , and this will inevitably affect the filling micro- structure.Shen micro injection (MM) and micro- injection compression (M ICM) forming a micro structure of poly (methyl methacrylate) (PMMA) light guide . The mold temperature was found to have a significant impact repeatability of the microstructure , with the increase of temperature of the mold , the article microstructure repetitive greater improvement ; micro- injection compression , the mold temperature factor is also significantly affected , as the MASTER plastic mold company temperature increases, the repeatability of the microstructure article greatly improved , but there is no improvement in the former a large amplitude .Xie and other devices using visual observation of PP melt weld line formation in micro- flow channel , and according to the characteristics of the mold design mold heating and cooling devices. Found that when the mold temperature is below the polymer glass transition temperature will increase if the injection pressure, the micro- channel can not be fully populated ; when the mold temperature is higher than the glass transition temperature of the polymer , at a lower injection pressure the filling can be obtained preferably microfluidic channel . Other scholars have studied experimentally derived products mold temperature on the microstructure has a significant impact on the repeatability .

Micro-cavity insert manufacturing MASTER plastic rattan molding

Micro-cavity inserts production process as follows: ① A parts CAD drawing production reticle on a glass layer 10nm thick chromium plating film, according to the original definition of the light-transmissive and non-transmissive portion; ② wafer pretreatment by MASTER injection mold maker degreasing , polishing, pickling, washing purification methods of processing silicon surface to improve adhesion of the photoresist and the wafer; ③ aluminum evaporation, vapor deposition on a silicon wafer in a thickness of about 1μm aluminum film; ④ glue thrown in a silicon wafer uniformly coated with an aluminum layer of a positive photoresist film; covered ⑤ exposure, the wafer is coated with photoresist mask with a wavelength of ultraviolet light of 350 m through the photoresist mask selective irradiation; ⑥ development, the wafer was immersed in the developer after exposure, the photoresist was dissolved by the developer MASTER custom injection moulding and irradiated portions except
To get the same mask pattern; ⑦ to glue; ⑧ ICP etching, performed by plasma etching deep grooves; ⑨ to aluminum, the aluminum corrosion removal of the protective film, and ultimately obtained a partial structure micro-cavity inserts.

The working MASTERplastic injection toy mould

The working principle of mold temperature machine consists of a water tank, heating and cooling system, power transmission system, the liquid level control system and a temperature sensor, MASTER plastic injection mould port devices. Usually, power transmission system in the pump so that the thermal fluid from the tank is equipped with a built-in heater and cooler to die, then die from the back to the water tank; temperature sensor to measure the temperature of hydrothermal fluids and transmit data to the control part of the controller; the controller adjusts the hydrothermal temperature, thereby indirectly control the mould temperature. If the mold temperature MASTER injection molding suppliesmachine in production, mold temperature exceeds the set point of the controller, the controller will open the electromagnetic valve is communicated with a water inlet pipe, until the heat fluid temperature, the mold temperature to the set point. If the mold temperature is lower than the set value, the controller will turn on the heater.

MASTER reaction injection moulding was first in the spring and Autumn period

Plaster mould was first in the spring and Autumn period, the ancestors with clay or stone carving out as a tool to coin money. Development up to now,the materials and processes are better than in MASTER injection molding supplies the past many advanced, in the material aspect, such as metal, resin, rubber, wood, plaster, several materials only gypsum is relatively easy to processing, no need of professional equipment, only need a knife or pieces of paper or wood, plus some soapy water as isolating agent can. Before making the plaster mold, people need to understand the properties of gypsum, gypsum powder is composed of a gypsum mine in quartz roasting by ground support, building materials stores a lot of big city in general can buy, their processing needs of small town of a class of area, is also the gypsum by grinding pestle, then roasted in a pot, burning fire, when the temperature to 800 degrees can be, but of course the quality no outside sell well. Nature when it comes to gypsum MASTER plastic container moldingpowder, chemically it is called semi  hydrated gypsum and burnt gypsum, it is mixed with water into a paste will soon after solidification, it is based on it by the flow of liquid into plasticity solid production molds and fire works, in the reaction process also generates heat. It should be noted, if too much moisture, will cause the solidified fastness variation condition, if need solid strength, should put the gypsum powder. Due to the condensation of solid gypsum can not be reused, so in the firing process must be fast, and be ready ahead of time and dosage of gypsum. Gypsum and gypsum products all have in common is absorbent, so people invented the slip casting method to make the blank, which is the removal of making plaster mold, another major use of gypsum.

Preparation conditions MASTER plastic rattan garden furniture system to control the mold temperature

Preparation conditions of temperature control system control mold temperature, mold temperature machine, the mold heat transfer fluid is composed of three parts. In order to ensure that heatMASTER pe pipe fitting mold can be added to the mold or moved, each part of the system must meet the following conditions: the first is in the mold, cooling channel surface area must be large enough, the ability to channel diameter to match the pump (pump pressure). The temperature distribution in the cavity on the deformation and internal pressure have a great impact. A reasonable set of cooling channel can reduce the internal pressure, so as to improve the quality of injection molded parts. It also can shorten the cycle time, reduce product cost. The second is the mold temperature machine must be able to keep constant temperature heat conducting fluid in the range of 1 ℃ -3 ℃ within, depending on the product MASTER zplastic box moldquality requirements set. Third is a heat transfer fluid must have good heat conduction ability, the most important is, it must be able to import or export a large amount of heat in the shortest amount of time. From the thermodynamic point of view, the water is more obvious than that of oil well.

MASTER custom injection moulding Gypsum line production of raw materials and prices used in the

Gypsum line, horizontal line, all kinds of gypsum products are all much of a muchness, use production tools and production materials are the same. The first is a tool for plaster mold production gypsum line, gypsum line mould comprises a common shade horn line gypsum line die; die flat line, also called window line; gypsum lamp mold plate; flowers die with angle, and the shade horn line flower angle mould; Rome column mold, including ordinary cylindrical Rome column, horizontal column, column style, as well as the matching column column bottom; gypsum relief mould hanger die. Gypsum MASTER plastic injection mouldline will use scraper, scraper have different radian according to different types of gypsum line. Scraper are made of rubber, plastic and wood, Asian American gypsum line die scraper hard rubber material, supporting the use of scraper and gypsum line mold. Of course, you can also according to the mould made scraper. The second is the gypsum line production materials, the main material includes a release agent, gypsum powder, water, glass fiber, as well as for heat shrinkable film packaging. The release agent is the use of saponified oil mixed with water emulsion, used for gypsum line release. Oil saponification is sold in cosmetics shop, the price is 12 yuan / kg (the price is only the reference price). Gypsum powder using gypsum powder can be regular, gypsum powder has the strength and whiteness are different, the price also has difference, generally in about 500 yuan / ton (the price is for reference only). Glass fibers can improve the toughness of gypsum line, let more strength gypsum line, glass fiber can be used to cut wire, the price of about 2000 yuan / ton (the price is for reference only). Heat shrinkable film packaging is used for gypsum line, first use gypsum line taped them well, then shrink bags sets, use boiling water poured MASTER china plastic injection molding shrink bag can let systolic contraction. The shrink bag price is 18 yuan / kg (the price is for reference only). Finally, gypsum line production site. Gypsum line production needs to have a smooth working table, table about 1m wide, 2.8m long, surface should be smooth, can use ground brick shop floor shop on the surface, plaster mold solidified can be placed on the worktable, the mold to be used can also be placed on the worktable, a a combined work table can greatly improve the production efficiency. Can be hung in the outdoor shelves gypsum line after production

Gypsum line, a good approach to enrich one's family

The current market demand, gypsum line products are often in short supply, gypsum production line put into smaller, faster capital turnover, market demand, and gypsum line has the advantages of simpleMASTER zplastic box mold production process, through simple learning can produce quality gypsum line of qualified products. So the building gypsum line production factory and a lot of good choice of entrepreneurial wealth. Plaster mould is the main tool of gypsum production line, gypsum line die mold Asian American various gypsum production line used for you, including gypsum line mold, mold, MASTER injection molding suppliesflat line lamp mold, mold, mold, spend horn relief Rome column mould, the wall mold, gardening sculpture mold and all kinds of custom shaped mold gypsum line, and used in the scraper, demoulding agent production tools and production materials. Asian American gypsum line mould provide excellent after sale service for you, to provide free production of various gypsum line and plaster products, to provide production technology consulting, as you remove any menace from the "rear".

MASTER reaction injection moulding Injection mold composition

Injection mold consisting of two movable mold and the fixed mold part, the injection molding machine is mounted on the movable mold of the movable platen, the stationary die is mounted on the stationary platen of the injection molding machine. In the injection molding mold is closed and fixed the movable die casting system and configured cavity mold when the fixed mold and the movable mold to remove the separated MASTER injection molding supplies. Although due to the structure of the mold and performance of varieties of plastic, shape and type of plastics injection molding machine structure and the like may be different and changing, but the basic structure is the same. Die mainly by gating system, thermostat systems, molded parts and structural parts. Gating system and molded parts which are in direct contact with the plastic part, and with the plastics and products change, is modeling the most complex, the biggest change, the most demanding part of the process finish and MASTER china plastic injection moldingaccuracy. Gating system is the plastic from the nozzle portion of the cavity before entering the flow path, including the main channel, cold slug, runner and gate and so on. Forming part refers to the shape of the various parts constituting products, including dynamic simulation, and the fixed mold cavity, core, forming rod and exhaust vent.