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.

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 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.

MASTER plastic rattan garden furniture Forging die steel

Forging die steel. Generally speaking, there are two steel forging die more prominent role under the impact load when one is working. Therefore, the higher the mechanical properties of the steel requirements, especially for plastic deformation resistance and toughness demanding; Second, the larger cross-sectional dimensions MASTER china plastic injection molding  die (<400mm) so the steel hardenability requirements higher to ensure that the entire die uniform microstructure and properties. Common hammer forging steel floor there 5CrNiMo, 5CrMnMo, 5CrNiW, 5CrNiTi and 5CrMnMoSiV so on. Different types of hammer eye mode should be used in different materials. MASTER plastic drawer mold For large or large hammer forging die to 5CrNiMo as well. Can also be used 5CrNiTi, 5CrNiW or 5CrMnMoSi like. For small and medium forging die steel usually used 5CrMnMO.