显示标签为“thin wall injection molding”的博文。显示所有博文
显示标签为“thin wall injection molding”的博文。显示所有博文

2015年1月3日星期六

plastic rattan molding industry development

plastic rattan molding industry will face six major industries and key industries, especially information (it) industry and the automotive industry, to develop it precise magnesium alloy die casting industry, precision injection molding; mold covering the automotive industry, MASTER plastic rattan molding large parts of the casting mold precision stampings multi-position progressive die. In 2010, it molds to achieve 85% industry localization, automotive die to achieve 90% localization. According to preliminary statistics, the Shanghai production of automotive stamping, plastic, die-casting mold business nearly 70, the annual output of about 20 million, of which nearly 7 billion in annual output value of enterprises reached, there plastic mold manufacturer are individual enterprises annual growth rate of 100 percent, Shanghai Automotive to become the main force in the mold industry. Zhejiang Province, mainly in the mold industry mainly produces plastic mold, die casting mold Beilun to mainly Elephant and Zhoushan in the main casting and stamping dies. Taizhou major plastic rattan molding manufacturer concentrated in Huangyan and bridge, plastic mold majority. plastic rattan molding industry has some distinctive features. First, almost all private mold manufacturing enterprises; the second is the relative concentration of mold companies, has formed a mold market; injection moulding companies the third is the mold in different levels to meet the needs of users at the same time, the rapid development of high levels of mold, and has a large proportion; Fourth, through multiple business, has emerged in a number of high-quality backbone of key enterprises; five have formed naturally specialization, major enterprises obvious characteristics; six mold industrial development role in boosting the development of local industry and the surrounding area was significantly .

2014年4月28日星期一

Plastic rattan garden furniture production process

Plastic raw rattan garden furniture Description: There are two types of stent materials and textile materials.
Bracket material: before MASTER auto mold corrosion, decay, crack and other treatment. In addition to bamboo, but can also be steel, rattan, wicker, plastic and other production bracket.
Woven material: mainly used rattan. Machined into rattan, rattan core and rattan MASTER bathroom mould and other parts for the textile part is Tengpi. There is a wide perception rattan cane, rattan and wild vines and other soil.

2014年3月26日星期三

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 .

2014年3月25日星期二

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.

2014年3月20日星期四

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.

2014年3月12日星期三

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

2014年3月3日星期一

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.

2014年2月26日星期三

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.

2014年2月19日星期三

Meter box box material

This composite material consists of two components: a substrate - a polyester-based resin; reinforcing material (abbreviated PC, SMC), which is so called transparent PC material, fiber Water purifier molding reinforced polyester material. PC transparent material, fiber-reinforced unsaturated polyester is an unsaturated polyester resin matrix composite material. Such insoluble both materials, flame retardant recyclable characteristics, the latter does not melt the material having the drawbacks thin wall injection moldingof non-recyclable three-dimensional structure of the physical network structure, four materials modified by the functional filler and reinforcing fibers have special become a high-performance engineering materials.
In Europe and other developed countries decades ago this material was widely used in the electrical field.