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Tag search results for: "dustbin mould"
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The manufacture of Dustbin Mould(FURNITUREMOULD) refers to the processing of forming and blank making tools, in addition to shearing mould and dustbin mould. Usually, the dustbin mould consists of an upper mould and a lower mould. The steel plate is placed between the upper die and the lower die to form the material under the action of the press. When the press is opened, the workpiece determined by the shape of the dustbin die will be obtained or the corresponding waste material will be removed.

Basic characteristics:

(1) High machining accuracy requirements

A pair of moulds is generally composed of female mould, male mould and mould base, and some may be multi-piece modules. Therefore, the combination of upper and lower dies, the combination of insert and cavity, and the combination of modules all require high machining accuracy. The dimensional accuracy of precision dies often reaches μ m.

(2) Complex shape and surface

Some product-shaped surfaces are formed by combining various curved surfaces, so the cavity surface of the mould is very complicated. Some curved surfaces must be treated by mathematical calculation.

(3) Small batch size

Mould production is not mass production, in many cases, only one pair is produced.

(4) Many working procedures

Milling, boring, drilling, reaming, tapping and other processes are always used in the manufacturing of the die.

(5) Repeated production

The use of the mould has a long life. When the service life of a pair of moulds exceeds its service life, a new mould must be replaced, so the production of moulds is often repetitive.

(6) Profiling

Sometimes there is neither pattern nor data in the mould production, and copying processing must be carried out according to the actual objects. This requires high imitation precision and no deformation.

(7) Excellent mould materials and high hardness

The main materials of the mould are mostly made of high-quality alloy steel, especially high-life moulds, which are often made of Leroi steel such as Crl2 and CrWMn. This kind of steel has strict requirements from blank forging, processing to heat treatment. Therefore, the compilation of processing technology cannot be ignored even more. Heat treatment deformation is also a problem that needs to be taken seriously in processing.

According to the above-mentioned characteristics, the selection of machine tools should meet the processing requirements as much as possible. For example, the numerical control system has stronger functions, higher precision of machine tools, better rigidity, better thermal stability and profiling functions.

If you are interested in our products, you can click Crate Mould to learn more information.

xiu Dec 24 '19 · Tags: crate mould, dustbin mould
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Under the condition that the structure, materials and use conditions of Daily Necessities Mould(FURNITUREMOULD) are unchanged, ensuring the heat treatment quality and adopting the best heat treatment process are the keys to give full play to the potential of mould materials and improve the service life of daily necessities mould. If the heat treatment process is unreasonable or improper operation causes heat treatment defects, it will seriously damage the service performance of the mould and lead to its early failure.

Pre-heat treatment of daily necessities mould working parts blank includes several processes such as annealing, normalizing, quenching and tempering according to different materials and requirements. Correct pre-heat treatment specifications play a great role in improving the structure, eliminating the structural defects of forged blanks, improving the machinability, and improving the bearing capacity and service life of daily necessities mould.

Quenching and tempering of mould materials for daily necessities is the central link to ensure the performance of mould working parts. Whether the quenching and tempering processes are reasonable or not has a direct impact on the bearing capacity and service life of the mould. The heat treatment process specifications should be strictly controlled or advanced heat treatment methods should be adopted.

The purpose of surface strengthening of the working parts of the daily necessities mould is to obtain the effect of external hardness and internal toughness, and to obtain a good combination of hardness, wear resistance, toughness and fatigue strength, thus improving the service life of the daily necessities mould.

If you are interested in our products, you can click Dustbin Mould to learn more information.

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If the design of the Daily Necessities Mould(FURNITUREMOULD) has not been fully reviewed collectively, the mould structure is unreasonable, which makes the mould undergo many improvements after the mould test, thus making the cost of the daily necessities mould exceed the budget.

If it can be fixed after several improvements, it is lucky. There are many cases that are not satisfactory. Even if the daily necessities mould has to be scrapped and re-made, the cost cannot be controlled. There are also cases where the design of the daily necessities mould is very good, but the processing of the daily necessities mould is not in place, which increases the number of mould tests for no reason and directly increases the mould cost. There is no objection to this problem, so many mould manufacturers have increased their investment in measuring equipment.

What will be the consequences of more tests for daily necessities mould?

1. The best moulding process and the model of the injection moulding machine were not selected during the mould test. Obviously, the mould was well done, but the injection moulded products were not ideal. For no reason, the number of mould tests is increased, which directly increases the mould cost. This is a common problem in some small mould factories.

2. The physical properties of plastics are not fully understood, and even the shrinkage rate is not accurate. This happens from time to time. Therefore, the physical properties of plastic must be made clear before designing moulds for daily necessities so as to effectively reduce the number of mould tests.

If you are interested in our products, you can click Dustbin Mould to learn more information.

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1. The steel used for making die parts of Crate Mould(FURNITUREMOULD) shall be wear-resistant, corrosion-resistant, with small deformation in high-temperature environment and certain toughness.

2. All parts in the crate mould shall be assembled in the mould body, and the cavity working surface of melt flow channel formed shall be smooth, level and free from material stagnation. If necessary, hard chrome layer shall be plated on the surface.

3. When the parts in the crate mould are disassembled and the sticky materials are cleaned, it is not allowed to strike the working face with a hammer, and it is not allowed to clean the residual materials stuck on the working face with a scraper, and there are no scratches and burrs on the working face.

4. Pay attention to the process temperature control of each part in the crate mould to meet the requirements of the tube blank forming process, and the mandrel in the large-size tube forming mould to have a heating temperature control device.

5. The center line of each part in the crate mould shall coincide with the center line of the mould body and the screw after assembly.

6. When the forming die is not used for a long time, all parts shall be cleaned up, coated with antirust oil, and sealed at the inlet and outlet for storage after assembly. Heavy objects are not allowed on the stored crate mould body to prevent the mould from deforming.

If you are interested in our products, you can click Dustbin Mould to learn more information.

xiu Oct 22 '19 · Tags: crate mould, dustbin mould
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If you want to solve the common problems in the mould test of the Crate Mould(FURNITUREMOULD), you have to know where the problem is in order to solve the problem. Let's talk about some common problems in the test of crate mould.

1. The main runner die bonding

The solution to the problem is to polish the main runner, with the nozzle coinciding with the mould centre, reduce the temperature of the crate mould, shorten the injection time, increase the cooling time, check the nozzle heating ring, polish the surface of the crate mould, and check whether the material is contaminated.

2. Difficult demoulding of plastic parts

The solution to the problem is to reduce the injection pressure, shorten the injection time, increase the cooling time, reduce the temperature of the crate mould, polish the surface of the crate mould, increase the demoulding slope and reduce the gap at the insert.

3. Poor dimensional stability

The solution to the problem is to change the temperature of the charging barrel, increase the injection time, increase the injection pressure, change the screw back pressure, increase the temperature of the crate mould, reduce the temperature of the crate mould, adjust the feed amount, and reduce the return ratio.

4. Surface corrugation

The solution to the problem is to adjust the feeding amount, raise the mould temperature of the crate, increase the injection time, increase the injection pressure, raise the material temperature, increase the injection speed, and increase the size of the sprue and gate.

5. Plastic warpage and deformation

The solution to the problem is to reduce the crate mould, reduce the material temperature, increase the cooling time, reduce the injection speed, reduce the injection pressure, increase the screw back pressure and shorten the injection time.

If you are interested in our products, you can click Dustbin Mould to learn more information.

xiu Oct 15 '19 · Tags: crate mould, dustbin mould
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The defects of most crate products are caused during the plasticizing and injection stages of the Crate Mould(FURNITUREMOULD), but sometimes they are also related to unreasonable design. The influencing factors include the type of injection port, the number of mould cavities, location and size, the design of the cold/hot runner system, and the structure of the product itself. Therefore, in order to avoid product defects caused by the design of the crate mould, we need to analyze the crate mould when making it.

After the test results of the crate mould, the operator usually needs to re-evaluate the specific conditions of the crate mould to avoid unnecessary cost and time in the process of modification. In most cases, in order to make up for the deficiencies in the die design of crates, the operator may make incorrect settings without knowledge, because the parameter setting range required to produce qualified products is very small, and any deviation in parameter setting may lead to the quality of the final products far beyond the allowable error range.

The purpose of the mould test of the crate mould is to find out the optimized technological parameters and the design of the crate mould. Not just to get a good sample. This is very important. Even if factors such as materials, machine settings or environments have changed, a stable and uninterrupted mass production environment can still be ensured.

If you are interested in our products, you can click Dustbin Mould to learn more information.

xiu Oct 9 '19 · Tags: crate mould, dustbin mould
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The quality of the hot work of the Crate Mould(FURNITUREMOULD) has a significant impact on the performance and service life of the mould. In the actual life work, our mould shop requires the improvement of the design and production of various moulds, and there will be problems in the specific operation.

The quenching deformation and cracking of the working parts of the crate mould, and the early fracture of the use process are all related to the hot working process of the tool.

(1) Forging process, which is an important part of the manufacturing process of crate mould parts. For moulds of high alloy tool steels, technical requirements are often imposed on metallographic structures such as material carbide distribution. In addition, the forging temperature range should be strictly controlled, the correct heating specification should be established, the correct forging force method should be used, and the post-forging slow cooling or timely annealing should be carried out.

(2) Preparatory heat treatment. Pre-heat treatment processes such as annealing, normalizing or quenching and tempering should be used according to the materials and requirements of the crate mould working parts to improve the structure, eliminate the structural defects of the forged blank, and improve the processing technology. The high-carbon alloy dies steel can eliminate the reticulated secondary cementite or chain carbide after appropriate preliminary heat treatment, so that the carbide is spheroidized and refined, and the uniformity of carbide distribution is promoted. This is beneficial to ensure the quality of quenching and tempering and improve the life of the mould.

(3) Quenching and tempering. This is a key link in the heat treatment of crate mould. If the superheat occurs during quenching, not only will the workpiece cause greater brittleness, but also cause deformation and cracking during cooling, which seriously affects the life of the mould. Special care should be taken to prevent oxidation and decarburization during die quenching. The heat treatment process specification should be strictly controlled. Vacuum heat treatment can be used if conditions permit. After quenching, it should be tempered in time, and different tempering processes should be adopted according to technical requirements.

(4) Stress relief annealing. The working parts of the crate mould should be subjected to stress relief annealing after roughing, with the purpose of eliminating the internal stress caused by rough, so as to avoid excessive deformation and cracking caused by quenching. For moulds with high precision requirements, it needs to be subjected to stress-relieving and tempering after grinding or electric machining, which is beneficial to stabilize mould precision and improve service life.

If you are interested in our products, you can click Dustbin Mould to learn more information.

xiu Sep 26 '19 · Tags: crate mould, dustbin mould
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The quality of the Dustbin Mould(FURNITUREMOULD) is not a simple topic, it includes the following aspects:

(1) Product quality: the stability and conformity of the product size, the smoothness of the surface of the product, the utilization rate of the product materials, etc.;

(2) Service life: the number of work cycles or the number of parts produced by the waste bin mould under the premise of ensuring the quality of the product;

(3) Maintenance and maintenance of the dustbin mould: whether it is the most convenient to use, easy to demould, and the production auxiliary time is as short as possible;

(4) Maintenance costs, maintenance periodicity, etc.

Taizhou Huangyan Rongwei Plastic Mould Co.,Ltd.is located in Huangyan,which is the mould town in China. Our company have more than 20 years professional experience in mould field. We have the most advanced equipments for mould manufacturing as well as the most qualified trained employees. We have made full use of high techniques as CAD/CAM/ CAE for a long time and summarized a set of specific expeiience. Our mould are mainly exported to the contries in Europe, Mid-East,Africa and so on.

Click Crate Mould to learn about more information.

xiu Sep 16 '19 · Tags: crate mould, dustbin mould
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The steel material of the Crate Mould(FURNITUREMOULD) is generally 718 or 2738, and it has to undergo multiple processing steps such as forging, CNC milling, roughing, quenching and tempering, and CNC milling. The plastics in the crate are generally plastics such as HDPE and PP.

The crate mould is generally a four-point hot runner, and the pusher plate is ejected. The advantages of using hot runners are: 1. Material saving, no need to cut gates, and then crush. 2. Speed up the cycle and increase production efficiency. 3. Reduce costs in the long run.

The crate mould has the following special requirements: 1. The exhaust effect is better, otherwise the plastic products will have black spots, etc., and the burnt will be severe. 2. The superimposed effect is better, the superimposed does not shake. 3. The line is better, no grind. 4. The mould should be highly polished, because the crates are daily necessities, so there should be no flash, burrs, etc., to avoid scratching the skin.

Click Dustbin Mould to learn about more information.

xiu Jul 28 '19 · Tags: crate mould, dustbin mould
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How to make a Crate Mould(FURNITUREMOULD)? First, the steel material should be selected for the mould base and the mould core cavity portion. For example, to produce a pair of four-out crate mould, pre-hardened steel with a hardness higher than 33 must be used as the mould base, and then the appropriate mould standard parts should be selected. Second, the hardness of each piece of steel must be controlled, not too hard.

Then, the friction and guiding parts of the crate mould must be finished and no manual work can be used. If you need to mould a durable tote, you must use a low melt index HDPE material, such as a plastic with an index of 4 or 6. Second, make sure the cooling system is optimal. To create a durable and durable hydraulic drive with the machine for automatic ejection, the ejection action during mould opening can be smoother.

Most of the world's crate mould manufacturers use accelerators to increase the injection speed of the melt. The design of the crate mould is equally important. The ejection mode of the crate mould is preferably designed to be mechanically ejected, so that the ejection operation can be completed when the mould is opened.

Click Dustbin Mould to learn about more information.

xiu Jul 21 '19 · Tags: crate mould, dustbin mould
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