Plastic injection molding china

Plastic injection molding china

Plastic injection molding china is a technique through which plastic products are manufactured using the pressure of the molten plastic injected into the mold of plastic products. After cooling these moldings desired variety of plastic parts are obtained. There is specialized machinery for injection molding and the mold is acquired after the resin material is injected into a metal mold apparatus of the products having a certain shape. Often the final product is the resulting shape which requires no installation or processing. There is lot of detailing like convex portion, the ribs, threads that can be molded in the operation of the injection molding process. Read more

CMM Manufacturers

Association of CMM Manufacturers
Celebrates Its First Anniversary

Founded in late 2001 to promote coordinate measuring machine business and technology, the International Association of Coordinate Measuring Machine Manufacturers — better known as CMM 
Manufacturers — will soon be celebrating its first anniversary.

This international, non-profit organization undertakes such initiatives as the development of human skills through education and training, and the promotion and implementation of common standards for hardware and interface software. For example, to help engineers and managers stay up to speed with evolving measurement technology, IA.CMM supports an ongoing forum for the exchange of experience between CMM users and CMM manufacturers. this machine is meaureing the dimensions for molds and die, for examples plastic mold or plastic molding parts

Members of IA.CMM are Brown & Sharpe DEA, Carl Zeiss, ITP, Johansson, Mahr, Mitutoyo, Mora, OKM, Trimek, Wenzel, Werth, and Zett Mess.

New Integrated Resin Selector
Software Tool Is Updated Frequently

Prospector Pro by IDES is a tool to help in the selection of resins. The program integrates with resin manufacturers’ and distributors’ material selector tools and websites. It allows efficient access to a database of 40,000 plastic material datasheets from 390 global suppliers.

The program includes design data, multipoint data, comprehensive datasheets directly from suppliers and sourcing information.

New features include:

  • Exporting of design data to HTML text or MS Excel files
  • Sample ordering via General Polymers
  • Resin purchasing via GE Polymerland
  • Request product quotes from manufacturers and/or distributors

Improved features include complementary material support. If users are unable to find a plastic datasheet, they can contact IDES and it will track down the datasheet within 24 hours.  

An i-Manage Suite™ data entry tool allows manufacturers to import their data directly into the IDES plastic materials database which is updated to Prospector Pro every two weeks.

Materialise Process Builds
Impressive Replica Statue

An impressive statue stands in the hall of the Materialiseheadquarters in Leuven, Belgium. It’s a six-foot-tall reproduction of an ancient Greek kouros, a type of life-size sculpture that marked graves or stood near temples as gifts dedicated to the gods during the Archaic era, from about 650 to 500 BC.

The manufacturer of the statue was part of an ECO project, which involved GEO-Analysis, responsible for scanning sculptures; the Focke Museum in Bremen, Germany; the Fitzwilliam Museum of Archeology in Cambridge, UK; the Archaeological Receipts Fund in Athens; and Materialise.

The goal for Materialise was to make a life-size replica of a kouros. After preparing the scanned data in a day, Materialise built the statue on its Mammoth II stereolithography machine, which has a build area of 2,150 x 620 x 500 mm.

The statue was built with a layer thickness of 0.15 mm. Production took just under 100 hours. The replica has a wall thickness of 5 mm and weighs about 11 kg.

Upcoming NPE 2003 Expected
To Be Truly International Event

We’re less than nine months away from the triennial NPE, and the Washington-based Society of the Plastics Industry is expecting the largest international participation in the show’s history. Show dates are June 23-27, 2003. The year 2000 show set three NPE records: number of exhibiting companies (2,014), net exhibit space (1,142,900 ft²/106,179m²), and number of registered participants (90,142).

By logging on to www.npe.org, visitors can preregister for the show, identify exhibiting companies by product categories and access their websites via links. By late fall, visitors will be able to use the site to select, confirm and pay deposits on hotels.

The site also provides a secure “personal planner,” that preregistered visitors can use to organize their time at NPE 2003. Basic information on the show is available in Chinese, French, German, Italian, Japanese, Portuguese and Spanish. Links to the city of Chicago websites provide information on dining, recreation and entertainment.

Until December, the cost of registering for NPE is (US) $25.00 and $50.00 thereafter. On-site registration is $75.00.

An International Center at NPE will offer multilingual staff, U.S. Dept. of Commerce trade experts to help visitors make valuable contacts with American firms. Separate meeting areas will be available for delegations from specific countries.

Technology Showroom

Fadal Technology Center Showroom
Schedules Open House for Nov. 19

On November 19, Fadal Machining Centers is holding an open house at its new Technology Center in Hayward, California. The Fadal Technology Center features a showroom with six demo machines and stock machine inventory, as well as a service center that provides multilingual training classes, fully stocked service vans, and factory-trained technicians.

“The Fadal Technology Center enables customers to make the best decision for their application from a wide variety of metal cutting solutions, from entry level to turnkey,” says Jerry McCarty, Fadal Machining Center’s vice president for customer service. “Our 24/7 service means more production time, so Fadal customers get the full value of their machining centers.”

The Fadal Technology Center showroom features six machining centers for demos of Fadal’s Performance Series, Standard Series and Remanufactured Series machining centers, as well as Giddings & Lewis, Hessapp, Hüller Hille, and Cross Hüller machining solutions. By offering machine tools from all the ThyssenKrupp MetalCutting companies, the Fadal Technology center provides a real choice in machining center solutions.

DaimlerChrysler Award Honors
Carl Zeiss Industrial Metrology

Once again, Carl Zeiss Industrial Metrology has received DaimlerChrysler’s International Procurement Services (IPS) award. Dr. Heinrich Reidelbach, IPS vice president at DaimlerChrysler, presented the award to Ralf Dieter, executive vice president and general manager of Carl Zeiss Industrielle Meßtechnik GmbH, in a special ceremony held recently in Stuttgart-Untertürkheim, Germany. Carl Zeiss was one of 10 suppliers to receive the award.

The main criteria for the award were a commitment to quality, competitive pricing, technology, and logistics, as well as a long-standing working relationship between DaimlerChrysler and the supplier. This supplier history was recorded in a “balance score card” along with the four IPS criteria to provide a benchmarking matrix. An additional survey was made in DaimlerChrysler’s factories to obtain feedback on their level of satisfaction with different suppliers.

During the award ceremony, Reidelbach explained that Carl Zeiss Industrial Metrology was a long-standing premium partner in the field of measuring systems and, in particular, had supported DaimlerChrysler during its starting problems with the E-Class car by providing professional and flexible services.

Injection Molding Sevices

A technical center in Mexico City is the latest in a growing number of such facilities for HYX Injection Molding Sevices Ltd. This newest facility opened in September and is situated near a number of key customers. The Mexico Tech Center has 18,000 ft² of production floor space and an overhead crane with a 10-ton capacity.

According to Mike Urquhart, HYX’s vice-president responsible for Latin and South America, the new center gives the company the necessary room to grow.

The Technical Center offers employment for 30 people who will provide a range of services including mold tests, audits, test production runs, and training. A fully equipped PET mold refurbishing area will be another key component of the facility.

Fully operational by March, refurbishing capabilities will include complete cold half conversions, rebuilds and component repair. Hot runner refurbishment along with rebuilds and preventative maintenance will also be available at that time.

If you want to know more informaion from HYX injectioin molding services company? you can got to https://www.hao-mold.com/ to get more solutions

High Speed Injection Molding

How do you achieve high-speed production of complex parts?

Answer:

The key component is an understanding of the volumes required. If the volumes are a million pieces per year, sometimes a four-cavity mold is needed or a high-quality tool. For high-speed or high-volume production, using high-quality tools is important. The tools should hold up with very little maintenance in this process.

Given a million pieces per year, a four-cavity small part is appropriate. To reduce the price of the parts as much a possible, hot-runner systems are needed to run high-speed molding. These systems eliminate the scrap from production; therefore, the parts are the sole result of the process.

Given five to seven million pieces per year, multi-cavity molds (eight-, sixteen-, twenty-four, thirty-two-cavity molds) are needed. Hot-runner systems and high-volume tools become very important. It is critical money be invested upfront in the development of this process. Based on the performance of these high-speed tools, the costs will be recovered in the future.

How does involving your mold-maker early in the process impact your engineering and development of new plastic molding products?

Answer:

The mold-makers involved in the trade of high-quality tooling must have several years of experience. The majority of mold-makers go through apprenticeship and training programs sponsored by the state.

Not only have they received state certification, they have trained on the production floor. By observing the production staff, mold-makers gain an understanding of the process and the end result of the types of products manufactured. Performance results are obtained during this exercise.

Getting the plastic mold maker engaged in the beginning also brings up a lot of ideas and develops the thought process for production. Based on their years of experience, it can be systematically determined how to produce high-quality tools with a very small margin of error in molding.

This lends itself to the best product possible with the least amount of down time. It incorporates the types of steels used, the types of molds used, as well as the types of engineering required. Any aspect of the process is accentuated by the experience of the mold-makers and their recommendations. It is crucial they be consulted at the very beginning of product development.

How do you move tools from overseas or execute mold transfers?

Answer:

When transferring plastic molds from overseas, the best practice is to find a facility that has an in-house tooling capability. It is important the facility is able to accomplish large-scale repairs on molds. Therefore, the skills required for execution are available within the company itself.

Since the company receiving the tools or the mold transfer is highly trained, the tools are sent there to be taken apart and examined. This step in the transfer process allows the manufacturer to assess if the tools were properly built. In numerous cases, tools are shipped with a combination of U.S. and European (metrics) supplies mixed together within the same molds.

These are some of the issues that need to be addressed to ensure proper procedures are taken to straighten the tool out. Otherwise, it cannot be made into a moldable product. Another concern is standardization of the molds. The molds should run in standard molding machines built for the industry.

The type of material needed to run in a particular plastic mold – engineering or otherwise – must be a consideration as well. The molds must be capable of meeting the volumes required for the materials involved. Some tools may not have the capacity to run the necessary volumes for the entire duration of the process.

A lot of tooling that comes from overseas may be prototype, not production tooling. The type of steel or engineering used during production may not be standardized or in line with manufacturer expectations. Prototype tools are not designed for high-volume production. It is important the tools are assessed properly.

What are the best practices in new product mold design?

Answer:

After product development has been secured and generation of plastic parts has begun, the best practice is to have those plastic parts designed by an expert. Generally, this would be a trained plastics engineer specializing in the various aspects of the process: tooling, molding, and plastics.

The engineer reviews the product line to confirm the plastic parts are moldable, the material used is appropriate, and the types of machines required. The results of the engineer’s assessment can be interpreted as to whether the product line is capable of being molded or not.

In order to save costs on the front end, work with a plastics engineer that specializes in tooling and molding. Based on this expert opinion, the feasibility of the product line may be determined.

CNC machine

FADAL is known to be one of the leading CNC machine brand. Fadal produces one of the finest quality CNC machines. Fadal offers a wide range of CNC machines varying in designs and makes. Most machines are designed as vertical machine center.

VMC machines are designed for high performance and accuracy. The VMC machines are built for heavy construction and tolerance which also reduces the cycle time of the overall process. Fadal CNC machines offer many unique features such as spindle drive systems. Fadal also offers simple CNC machines for regular operations which do not involve complexity.

Fadal has also introduced the FX series of CNC machines will are even more advanced and expensive and also includes various features such as low cycle times and high machining performance. The Fadal CNC machine saves both time and money because of its high production and quality. Fadal CNC machines are considered to be one of the best CNC machines in the market. Stay tuned to SINCERE  TECH for more information, ST has many CNC machines and is A mold manufacturer China company

Injection molding machine barrel cleaning

Injection molding machine barrel cleaning

The exits of buildup in injection machine barrel when we start to operator injection machine will influence the plastic product quality. So in order to guarantee the plastic product quality, injection machine barrel cleaning is very important.

  • Method of injection machine barrel cleaning

1)      If injection machine want to manufacture many kinds of product, we should manufacture the product with light color, low melt temperature and bad heat stability, thus changing the material, cleaning the barrel is very easy.

2)      When the new material temperature is higher than unused material temperature, we should increase the injection machine and nozzle temperature to the lowest process temperature which new material need.

3)      If the new material molding temperature lower than unused material in injection machine barrel, we should increase the injection machine barrel temperature, then cut the heating power when the unused material in a certain condition.

4)      For the injection machine barrel cleaning of unused material with heat sensitivity, like PVC,POM,PCTFEF3 and so on, to avoid plastic decompose, we can adopt two stages, that is using plastic with good heating stability to transition refueling cleaning first ,like PS,LDPE and so on, then use the new material to replace the transition cleaning material.

5)      Use cleaner to clean the injection machine barrel.

No matter change the material directly or transition refueling, they will cost many material. Using cleaner to clean the injection machine barrel can not only save the cost but the effect is good. It is suitable for the injection machine barrel cleaning which process temperature range from 180℃ to 280℃.

Good plastic injection molding parts made by good quality plastic mold

  •  Pattern of injection machine barrel cleaning

1)      Plunge type injection machine barrel cleaning

Since big quantity stores, cleaning the injection machine barrel is very difficult, we must use special injection machine barrel.

2)      Screw injection machine barrel cleaning

Generally, we use changing material cleaning directly, we should know the temperature range of unused material in injection machine barrel and the heating stability first, and then we can set specific cleaning pattern easily

Injection Molding Process

Injection Molding Process

The injection molding process parameters of two kinds of commonly used plastic reference,

A, high density polyethylene (HDPE)

Barrel temperature feeding zone 30 ~ 50 C (50 DEG C)

From 1160 to 250 C (200 DEG C), from 2200 to 300 C (210 DEG C), from 3220 to 300 C (230 DEG C)

From 4220 to 300 C (240 DEG C), from 5220 to 300 C (240 DEG C), the nozzle 220 ~ 300 C (240 DEG C)

Temperature is suggested in brackets as the basic set value, travel utilization rate was 35% and 65%, mold flow length and wall thickness ratio of 50:1 to 100:1

Melt temperature 220 to 280 DEG C, barrel temperature of 220 DEG C, mold temperature of 20 to 60 DEG C

With good flow property of injection pressure, avoid the use of high injection pressure 80 ~ 140MPa (800 ~ 1400bar); except for some thin wall packaging container can reach 180MPa (1800bar).

Holding pressure contraction degree is high, need long time on the product pressure is maintained, the dimensional accuracy is the key factor, the injection pressure is about.30% ~ 60%

Back pressure 5 ~ 20MPa (50 ~ 200bar); back pressure too low place is easy to cause the weight of the product and the dispersion.

High injection speed injection speed of thin-wall packaging containers need, secondary injection speed is often applied to the plastic products of other classes.

Screw speed high screw speed (line speed is 1.3m/s) is permitted, as long as meet the cooling time before the end of the completion of the plasticizing process can; screw torque requirements for low.

Measurement of travel of 0.5 ~ 4D (minimum to maximum); metering stroke4D for the melt dwell time is long enough to provide the residual material amount is very important for 2 ~ 8mm, depending on the measurement of travel and the screw diameter.

injection molding cost is depending on the molding process

The recovery rate can reach 100% recovery.

The shrinkage rate of 1.2 ~ 2.5%; easy to twist the high degree; shrinkage;never shrink after 24h (after shrinkage)

The gating system point gate; heating hot runner hot runner, insulation, cast in suit; cross-sectional area is relatively small, the thin section products have enough machine stoppage time without the need to use other materials for cleaning work of specialized PE temperature rise;

Barrel equipment standard screw, three section type screw standard us on the packaging container products, mixing section and shear section geometric shape special (L:D = 25:1), through the nozzle, a non-return valve.

Two, polypropylene (PP)

Barrel temperature feeding zone 30 ~ 50 C (50 DEG C)

From 1160 to 250 C (200 DEG C), from 2200 to 300 C (220 DEG C), from 3220 to 300 C (240 DEG C)

From 4220 to 300 C (240 DEG C), from 5220 to 300 C (240 DEG C)

The nozzle 220 ~ 300 degrees (240 degrees C)

Temperature is suggested in brackets as the basic set value, travel utilization rate was 35% and 65%, mold flow length and wall thickness ratio of 50:1 to 100:1

Melt temperature 220 to 280 DEG C, barrel temperature of 220 DEG C, mold temperature of 20 to 70 DEG C

With good flow property of injection pressure, avoid the use of high injection pressure 80 ~ 140MPa (800 ~ 1400bar);

Except for some thin wall packaging container can reach 180MPa(1800bar).

Holding pressure to avoid product shrinkage wall, take a long time for the product of holding pressure (about cycle time; 30%) about the injection pressure 30% ~ 60%.

Back pressure 5 ~ 20MPa (50 ~ 200bar).

The injection speed high injection speed of thin-wall packaging containers need (accumulator); secondary injection speed is often applied to the plastic products of other classes.

Screw speed high screw speed (line speed is 1.3m/s) is permitted, as long as meet the plasticizing process cooling time before the end of May.

Measurement of travel of 0.5 ~ 4D (minimum to maximum); metering stroke4D for the melt dwell time is long enough to provide is very important

Residue volume ranged from 2 to 8mm, depending on the metering stroke and screw speed.

Pre drying is not needed; if the storage condition is not good, at a temperature of 80 DEG C dried 1H can.

The recovery rate can reach 100% recovery.

The shrinkage rate of 1.2 ~ 2.5%; contraction degree is high; won’t shrink after 24h (after shrinkage).

The gating system point gate or multiple point gate; heating hot runner hot runner, insulation, cast in suit; the position of gate WIP thickest point, or prone to large shrinkage.

injection molding China company needs optimize the parameter from time to time to reduce the cost and keep same quality.

Machine stoppage time without the need to use other materials for cleaning work of specialized PP temperature rise;

Barrel equipment standard screw, three section type screw standard use on the packaging container products, mixing section and shear section geometric shape special (L:D = 25:1), through the nozzle, a non-return valve

What is Insert Molding

What is Insert Molding

While the injection molding as well as insert molding processes are more or less the same, the only difference is that the injection molding makes use of only thermoplastic materials. On the other hand, this process can make use of plastics as well as other metals in order to manufacture and produce even better or advanced products. This process has become so very popular these days that it gives various advantages to people. The application of this kind of molding is far, wide and advantageous to a lot of extent.

This can be called a highly advanced and better process in which the components or parts such as bushings, metal stampings, filtration materials, electromechanical parts as well as various distinct parts are joined or rather combined into one component only with the help of thermoplastic injection into ‘inserts’ or the placed parts. Read more