Plastic Injection Moulding Solution

In 2015 years, there are many families prefer wicker texture, but due to the plant wicker has short use life and expensive cost. More and more plastic makers use plastic instead of it. In order to make the plastic laundry basket mould as natural as though it were living, many mould makers rack their brains, but no result. In 2014 years, Sino has made several laundry baskets same to the wicker laundry. We adopt the most suitable steel material, and choose the best injection molding solutions; all of the molds are delivered successfully. And in 2015 years, many plastic makers known from other customer about our ability, more and more laundry basket mould enquires come. And now, after 1 year’s research and 1 year’s consolidate, Sino has a series which makes the process time shorter and reduce the cost. In our storage, there are 2 sets of the laundry basket moulds; both sets have basket, ring and lid. And the mould is in the best condition. If you are interested in Laundry basket...

Sino Holdings Group is China's leading mold and injection molding machine supplier, specializing in various crate molds production. Recent years, folding crates is very hot popular years in the international and domestic market. Because of Folding crates easy usage, small space occupation, they are favoring by many users, such as folding crates of fruit, vegetable crates, milk crates, crates and other beverage bottles. Folding crates in China is only in recent years into the market, but in foreign countries, plastic folding crates markets have been put into mass use. Sino as a high-quality plastic mold manufacturing enterprises, many years ago for foreign customers design and development of plastic folding crates, folding crates and plastic mold development a variety of styles and a variety of structures. Dakumar injection molding machine and a subsidiary have dozens of injection molding machines, injection molding production dedicated to the folding crates plastic products...

With the plastic products become fashionable for a time, many simple wooden furniture replaced by plastic furniture, such as our plastic drawer . Plastic drawer generally adopt PP raw material. Sino pay much attention to the plastic drawer appearance. In particularly, gloss appearance and gate handle, which makes the products are filling a sense of quality either for domestic use or office use. Especially in the assembly that attaches great importance to Sino precision molds, carved in the mold stage, using the most advanced carved entire Taizhou machines. So smooth and high sealing assembly drawer.  Plastic drawer mould’s difficulty is hot runner arrangement. Top plastic drawer 2 drops hot runner commonly used arrangement, while the general framework is 2 points hot runner system. About the bottom parts we generally use the 8 points or 16 points hot runner system. If the customer has specific requirements, we can give customers reasonable mold design based on customer...

Why is the disposable cutlery plastic injection mold always prone to burning, product hit dissatisfaction, product porosity and other issues when production. The main reason is that the exhaust structure is not good, but why the mold has gas: 1.  The source of the gas in the injection mold. (1)Gating system and mold cavity has air. (2)the raw material has water (3)Since the injection molding temperature is too high, some properties of plastic instability generated gas produced by decomposition. 2.  The exhaust system is not good. Bad exhaust system will bring a range of harm to the quality of plastic parts. The main performance is as follows: (1)during the molding process, the melt will replace the cavity in the gas, if the gas discharge is not timely, it will cause difficulties in filling the melt, resulting in insufficient injection amount can not be filled cavity. (2) poor exhaust system will cause cavity increase pressure, when reached to a certain degree, the gas w...

Sino Mould Company is a professional toilet cover mold expert, we has made molds for a number of large domestic and foreign brands, which is widely used in many fields, such as home, car, outdoors, aviation and so on. we generally use PP or ABS material as well as PA and jade powder, etc. The most importance points of toilet cover mold is the appearance and assembly dimensions, which are inseparable from the superb mold technology and post-maintenance. Today, let Sino told you how to make toilet mold maintenance: first, we should at the injection molding machine, mold normal operation, test mold various properties, and the final molding of plastic parts dimensions measured may be determined by the existing state of the mold that information to find out cavity, core, cooling systems and sub-surface damage such as where, according to information provided by the plastic parts, you can determine the status of the mold damage and repair measures. Second, we must cover the mold on ...

Foot-trash bins mold is the widely used daily necessities mold, appearance requirements, but also can not have a microcosm of trapped gas, strain, the finish must be very high, then how to achieve high-light effect does it? This requires polishing to solve. Mold polishing has two purposes; one is to increase the mold finish, to make the mold appearance is smooth and beautiful. The other is very convenient mold releasing, so that the plastic goods will not be glued to the mold. Mold polishing is generally used stone, sandpaper, polishing ointment on polished surface of the mold cavity, making the process work surface of the mold can be bright as a mirror, called the mold polishing: Foot-trash bins mold polishing do not start using the finest stone, sandpaper, polishing paste, that is not to throw away the thick lines. Grinding out a living as the surface looks very bright, but the side of a photo, thick lines began to unravel. Thus, the first from the crude stone, sandpaper or p...

Cutlery knife fork and spoon molds are widely used in daily, spoon mold is the most used disposable cutlery. And the requirements are relatively high. The surface must be with high light, sub-surface can’t have flash and with a perfect edge to achieve surface effects well, long mold life, steel is one of the keys. When we manufacture a plastic mold, mold steel commonly used P20 / 718 / S136 / H13 / NAK80 / 45 #, etc., Sino company is generally used imported steel material, now we share the steel feature with you here:  Sweden win hundreds of factory production of steel worldwide reputation for its quality, 718 steel has almost become the most commonly used plastic mold cavity material, the latest production of HOTVAR when hot steel in HRC54-56 can fit in 650 Celsius environment. Pre-hardened plastic mold steel Sweden 718H: for high polished degree and high demand within the module, suitable for PA, POM, PS, PE, PP, ABS plastic, hardened and tempered to about HB290 ~ 370 ...

After finished a set of mould, next we need to test the validity of the mold, which is tryout. Then put into production, as well as in the production of mould maintenance , in order to make the mold is in better working condition, let us gain maximum benefits of it? When the mould tryout, we need note whether the smooth opening and closing the mold, ejecting smoothly. Second, pay attention to the mold gate location and into gum manner and gate size and cavity size to choose the right pressure, speed, quantity for injection. When the mold is heated, carefully check fit the mold at all if there is strong phenomenon, then confirm the binding wire and exhaust. Please confirm the size and appearance of the quality of personnel played after product. Mold production process, to check the mold setup and safety devices, allowing operations staff to understand the process, there may be problems. After production is completed, the lower mold or standby machine and molds need to take the ...

Autoparts plastic mold divided into three categories: interior parts, exterior parts and the functional parts. First, the general requirements of the car’s plastic mateial: 1. Impact strength and modulus equilibrium (along with strength, tough characteristics, excellent dimensional stability, which means that the material in the long table load creep resistance is good); 2. Good temperature resistance, to ensure the material won’t deform under conditions of light and heat; 3. with specific surface properties, such as matte, high hardness scratch-resistant, easy to painting, plating and so on; 4. Excellent weather resistance, to ensure long-term use does not change color, not aging cracking (includes thermal oxidative aging and photoaging); 5. Good chemical resistance to withstand the erosion of oil and cosmetic products; 6. Easy molding, injection molding and material should have sufficient liquidity to ensure that the structure of complex molded parts, and improve pr...

Sino Mould is a famous plastic mould manufacturer all over the world. After years of working experience in injection mold industry, Sino concluded that a good injection mold can’t do without a good plastic products structure . What’s more, we need controller it from the injection mold design. When make product design, the designer should try his best to avoid unnecessary undercut, and avoid mold core pulling, thereby to simplify the mold structure. Suitable thickness and everage of plastic products will be better. and uniform wall thickness changes in wall thickness is too small will cause the flow resistance is too large, missing gum occurs, resulting in waste of raw material wall thickness over the General Assembly and has shrunk severely. Where the wall thickness of mutated, cause stress concentration, away deformed, so product design should be consistent as far as possible the wall thickness or wall thickness change to be smooth. Some local plastic parts should be designed ro...

There are many factory want to be plastic crate supplier , some of them have sample, which sales very good in their countries, some of them have their own 3D design, and most of them not not have sample or design, they only have an idea. Whether you have drawings or samples or not, Just what you want to develop turnover box, you tell us your thoughts and request. SINO has a strong technical team, which can help you develop on any one market turnover box does not have, to advise you, to your standards. We have rich experience mold crates. Here is the brief of our company turnover box mold. How to make a good plastic crate mould? First of all, choose the right materials for the steel mold and mold core cavity section. For example: the production of a one-four crate mold, must be harder than 33 pre-hardened steel material to make mold, and then select the appropriate standard mold. Second, we must control every piece of good steel material hardness, not too hard. Then, the fr...

Mold production cycle is calculated from the buyer accept orders to delivery. and the time  depends on molding technology and production level of management. Currently, mould buyer require the mould cycle time shorter and shorter, in order to meet the needs of market competition and replacement, therefore, mold production cycle length is one measure of a mold production capacity and technological level of the comprehensive sign. 1.        The mold technology and production standardization is a national mold technology and production to a certain level of product development. At present, the standardization of China's mold technology have had a good foundation, there is the underlying technology standard mold, all kinds of mold design standards, mold technology standards, blanks and semi-finished parts standard mold and mold inspection and acceptance criteria. As the "small" and "large" situation of Chinese enterprises, making the commercializ...

With regard to the person, who often in touch with injection molding machine, he must be very familiar with injection machine structure . But there are many workers not know it too much. It is very necessary to make well-known of Dakumar injection molding machine structure. Dakumar injection molding machine usually consists of the injection system, clamping system, hydraulic convey dynamic system, electrical control system, lubrication system, heating and cooling systems, security monitoring systems and other components. First, let's talk about injection system function; screw system is currently the most widely used. Its role is in a cycle of injection molding machine, can within the specified time will be a certain number of plastic raw materials after heating plastics, at a certain pressure and speed, by the screw will melt the plastic into the mold cavity. The other is the clamping system structure and function, the clamping system is to ensure the mold is clos...

How to make a high quality plastic cratemould ? You must know crate mold technology and quality key points if you want to make such a mold. Quality points: 1.        Long mould life. 2.        High speed injection. 3.        Good air venting system on the crate handles part. Technology points: How to make the crate mould life longer? 1.        First of all, select suitable mould base and cavity, core steel material. Such as: product a set of 4 cavities crate mould, we must adopt the steel which hardness > 33 as the mould base, then choose suitable mould standard spare parts. 2.        Second, we must control every steel’s hardness, can’t too hard. 3.        Third, all of the mould friction and guide parts must do finish machining, can’t adopt any hand work. 4.     ...

If the mould storage time is longer and without any professional conducts, then the mould life will be affected. The reason why plastic mold rusting , because of the melt material overheating exploded air caused.   Then how to prevent plastic mold rusting? As a professional mould manufacturer, Sino summed up the following experience: First, when the mold finished molding, we’d better clean the mould surface by soft dry cloth. Then, before process mold molding, must close the mold very well, the advantage of this is that prevent the gas generated by injection get into mould and cause rusting. Second, paint grease before closing plastic mold. Last, when the mould need long time to stop production, we’d better spray some antirust agent on the cavity surface. To be attention, we must clean the cavity by soft dry cloth to without any rusting.   We are very professional plastic injection mold supplier, always offer customer high quality products. In order to conve...

Mould cost of production  included product and sale this mould that paid total costs, which included raw material fee, purchased part cost, cooperation part charge, depreciation of equipment, business expenses, etc. There are some factors will affect mold production cost: 1. Mould structure: complexity and mold function. With the development of modern science and technology, makes mold towards high precision and multi function, automation, work in concert with the mold cost of production will be increased. 2. Mould precision level. The higher of mould precision and steel level, the more cost of the mold. Mould precision and steel level had better to fit to the product requirement and production output. That will be much more reasonable. 3. Mold steel material selection. In the mold cost, steel material occupies about 25%-30% to the mold cost of production. Due to the mold spare parts material and type difference, has big differ of the cost. So a good mold company can he...