Product Description
About Spray-free material products:
What is a spray free material?
Spray free materials are materials that add metal powder to plastic raw materials and can be directly injected to give the product a spray like appearance.
Nowadays, spray free materials include 3 parts: substrate, metal pigments, and additives.
The processing and forming methods of spray free plastics include extrusion molding, die casting, suction molding, and injection molding.
Advantages of extrusion molding: no CZPT marks; The disadvantage is poor surface glossiness, single character, and limited appearance. Advantages of die-casting and suction molding processes: no CZPT marks, diverse shapes; Disadvantages: Poor surface glossiness and high requirements for material performance. Injection molding is a widely used method, often using high gloss injection molding technology.
Spray free plastics are made by adding high gloss powder, pearlescent powder, metal powder, ceramic powder, etc. to specific resins (such as PP, ABS, AS, PC, etc.) through melt blending, and then undergoing compatibility modification and injection molding. Spray free CZPT have special appearance effects such as metal, dazzling color, and ceramic, solving the problems of welding lines and flow marks that have appeared in injection molded products for many years. They have the advantages of dazzling color texture, high gloss, environmental protection, chemical solvent resistance, and low cost, and are widely used in industries such as automobiles and household appliances. New CZPT (NFD) spray free plastic provides customers with customized color schemes to meet diverse and differentiated market demands, and its products have a unique visual impact.
The appearance and color of ordinary plastic need to be achieved through spraying. Non spraying plastic comes with its own color effect and is directly molded into products with color luster, without the need for spraying. It is environmentally friendly, healthy, and cost-effective. New CZPT (NFD) spray free plastic is used in automotive components such as car pedals, pillar trims, glove boxes, sun visors, and side skirts; Household appliances: pressure cookers, soybean milk machines, washing machines, rice cookers, electric kettles and other applications are increasingly widespread.
(1) TV: The spray free plastic for TV panels mainly uses PC/ABS, high gloss ABS, and PMMA/ABS plastics, with PMMA/ABS materials having high hardness,
It can be made into a semi transparent effect, achieving a more dazzling appearance and LED light perspective effect, with low hardness of high gloss ABS.
(2) Air conditioning and refrigerator: Non spray plastic is more environmentally friendly and safe, with a metallic luster effect.
(3) Washing machine: The exterior panel and control panel are mostly made of high gloss and pearl gloss ABS.
(4) Water heaters and electric kettles: Choose non spray plastics that are resistant to hydrolysis, high strength, and fire resistance.
(5)Soybean milk machine and electric rice cooker: choose non spray plastic with high temperature resistance, good dimensional stability, creep resistance and good processability.
Advantages of spray free plastics:
High Gloss: Achieves a special metallic, pearly, and shiny appearance without the need for surface modification.
Chemical solvent resistance: Special additives are used to significantly improve the chemical resistance of the material.
Green and environmentally friendly: environmentally friendly, without generating harmful gases or dust hazards to the environment; The parts can be 100% recycled.
Cost saving: Easy to process and shape, high yield, no need for post-processing, compared to spraying, the overall cost is reduced by 20-50%.
Main applications
Household appliances, electronics, automotive 3C field, rice cookers, washing machines, air conditioning panels, mobile phone shells, automotive accessories
| Business type | Manufacturer,OEM/ODM and customization service supported | |||
| Main Product | plastic molds/molds,blow moulds , prototypes, injection molding products,plastic products,metal stamping die parts,CNC processing, used molds,3D printing, regular /non-standard semi/full automatic injection molding machinery line ,etc | |||
| Mould Material | P20/718/738/NAK80/S136/2738/2316/H13, etc. | |||
| Moud Precision | +/-0.01mm | |||
| Mould Life | 50K-5000K shots | |||
| Mould Cavity | Single cavity, multi-cavity | |||
| Runner System | Hot runner and cold runner | |||
| GateType | Pinpoint Gate, Edge Gate, Sub Gate, Film Gate, Valve Gate, Open Gate, etc. | |||
| Equipment | CNC,EDM, 3d coordinate measuring instrument,Machine,plastic machinery,etc plastic part | |||
| Plastic Material | PS, ABS, PP, PVC, PMMA, PBT, PC, POM, PA66, PA6, PBT+GF, PC/ABS, PEEK, HDPE, TPU, PET, PPO,etc. | |||
| Surface Treatment | Polishing,Painting,Chroming,Anodizing, Brushing, Silk Screening,Water Transfering, Laser Cutting,Leather Covering,Texture,Sanblasting,Gilding,UV Painting… | |||
| Pls Provide | 2D, 3D, samples, or the size of the multi-angle pictures | |||
| Quality System | ISO-9001:2015 | |||
| Package | Seaworthy exported wooden case | |||
About us :
HONGTENG was established in 2016 and consists of 3 factories: XiaMen Hongteng Optoelectronics Technology Co., Ltd, HangZhou Hongteng Plastic Molding Co., Ltd. and Hongteng ZhiZhi (Xihu (West Lake) Dis.) Technology Co.ltd.
Over 200 staffs and a total area of around 25,000 square CZPT ,equipped with more than 150 complete and advanced production equipment ,the company has a professional team of highly skilled design and engineering staffs to work on plastic injection mold ,blowing mold ,CNC Machining ,parts production ,mold Design ,assembling production line ,standard/non-standard customization of semi/auto-injection machinery production line ,and other flexible OEM/ODM service,etc, achieving the certificates of ISO9001 , ZheJiang Science and Technology Little Giant leader enterprise ,XiaMen Science and Technology Little Giant leader enterprise and many patents.
HongTeng gains good reputation and satisfaction from collaboration with PHILIPS,GE,OSRAM,MI,HUAWEI,CATL,NIO and many other customers ,serving various markets including Optoelectronic,Household &Industrial , Electronics & Telecommunications, Medical & Healthcare,Automotive,sports,standard/non-standard customization of semi/auto-injection molding machinery production line(Borunte Injection machine ,such as:Three-axis/Four-axis/Five-axis servo Manipulator ;Two-axis/Four-axis/Six-axis Robot,Six-axis cooperative Robot,Lurking AGV,Composite mobile robot platform,Industrial Robot Series ,Casting Robot Series ,I.M.M Robot Series ,etc) ,and other flexible OEM/ODM service.
HongTeng aims to help clients optimize productivity and minimize manufacturing costs, strengthening the ability of OEM to compete effectively on a global basis.
welcome to contact us .
Our sample showroom:
Our certificates(ISO,Patents,Awards) honors:
Our tooling workshop:
Our injection workshop:
Our metal processing workshop:
Our R&D Department:
Our assembly workshop:
How to order :
Kindly contact or email us your inquiry or RFQS with details.One of our sales team would contact you ASAP and offer professional consultation on all your plastic molding needs and provide the best price .
FAQ:
1,What do we make?
We do mold design , plastic injection molds ,plastic products ,blowing molds ,blowing products ,Metal Stamping Die Parts,CNC Machining parts,Die Casting,standard/non-standard customization of semi/auto-injection molding machinery production line ,and other flexible OEM/ODM service.
2,Why choose us?
1.Over 20 years of experience. .
2.Around 25,000sqms production area
3.ISO9001 ,ZheJiang and XiaMen Science and Technology Little Giant leader enterprise and over 30 patent certificates
4.More than 150 complete and advanced production equipment
5.More than 30 senior engineers
6.One-stop service and technical support from design to mass production
7.Flexible solution could be customized as per client’s providing details to achieve their demands .
8.Strict quality check in prior to shipment for each order .
3,How can I get a quote?
Contact us.In order to quote you as soon as possible,kindly provide following information:
1.Detailed drawings(format:CAD/PDF/DWG/DXF/DXW/IGES/STEP etc.)
2.Material
3.Quantity
4.Surface treatment
5.Mold life or your monthly production quantity
6.Any special packing or other requirements
4,Can I get a quote without drawings?
Sure, we appreciate to receive your samples, pictures or drafts with detailed dimensions for accurate quotation.
5,Can we CZPT NDA?
Sure,we pay much attention to protect our customers’ privacy of drawings, We never disclose customers’ information to anyone else.
6,How long is the lead time for mold?
It depends on the mold’s size and complexity .Normally ,the lead time is 25-45 days .If the mold is very simple and not in big size ,we can work out with 15days.
7,How do you control the quality?
We want long term business relationship ,we understand quality is the first priority .
Always a pre-production sample before mass production;
Always final inspection before shipment.
8,How about the transportation?
You can choose any mode of transportation you want, sea delivery, air delivery or door to door express.We can also deliver the goods to your warehouse in China .
| Shaping Mode: | Injection Mould |
|---|---|
| Surface Finish Process: | Polishing |
| Mould Cavity: | Multi Cavity |
| Plastic Material: | ABS |
| Process Combination Type: | Progressive Die |
| Application: | Car, Household Appliances, Furniture, Commodity, Electronic, Home Use, Hardware, Medical |
| Customization: |
Available
| Customized Request |
|---|
Importance of Wall Thickness in Injection Molded Parts
When designing injection molded parts, it is important to keep the wall thickness uniform. Uneven wall thickness can lead to warping and sinking. To minimize these problems, injection molded parts should have a wall thickness of 40 to 60 percent of the adjacent wall. The thickness of the wall should also fit within the range recommended for the resin that is being used. If the wall thickness is too thick, it should be cored out. Unnecessary wall thickness alters the dimensions of the part, reduces its strength, and may require post-process machining.
Designing out sharp corners on injection molded parts
Designing out sharp corners on injection molded components can be a challenging process. There are several factors to consider that impact how much corner radius you need to design out. A general rule is to use a radius that is about 0.5 times the thickness of the adjacent wall. This will prevent sharp corners from occurring on a part that is manufactured from injection molding.
Sharp corners can obstruct the flow of plastic melt into the mold and create flaws on parts. They can also cause stress concentration, which can compromise the strength of the part. To avoid this, sharp corners should be designed out. Adding radii to the corners is also an effective way to avoid sharp angles.
Another common problem is the presence of overhangs. Injection molding parts with overhangs tend to have side-action cores, which enter from the top or bottom. As a result, the cost of making these parts goes up quickly. Moreover, the process of solidification and cooling takes up more than half of the injection molding cycle. This makes it more cost-effective to design parts with minimal overhangs.
Undercuts on injection molded parts should be designed with a greater radius, preferably one or two times the part’s wall thickness. The inside radius of corners should be at least 0.5 times the wall thickness and the outside radius should be 1.5 times the wall thickness. This will help maintain a consistent wall thickness throughout the part. Avoiding undercuts is also important for easy ejection from the mold. If undercuts are present, they can cause a part to stick inside the mold after it has cooled.
Keeping wall thickness uniform is another important issue when designing plastic parts. Inconsistent wall thickness will increase the chance of warping and other defects.
Adding inserts to injection molded parts
Adding inserts to injection molded parts can be a cost-effective way to enhance the functionality of your products. Inserts are usually manufactured from a wide range of materials, including stainless steel, brass, aluminum, bronze, copper, Monel, nickel/nickel alloy, and more. Selecting the right material for your parts depends on the application. Choosing the correct material can help prevent defects and keep production cycles short. The insert material should be durable and resist deformation during the injection molding process. It must also be thin enough to provide the desired grip and have a proper mold depth.
The benefits of adding inserts to injection molded parts include the ability to design parts with unique shapes. These parts can be aesthetically pleasing, while still remaining durable and resistant to wear and tear. In addition, insert molding allows products to have a good external finish. In addition to being cost-effective, insert molding is considered a more efficient manufacturing method than other conventional methods.
Adding inserts to injection molded parts is an excellent way to enhance the strength and performance of your products. There are many different types of inserts, including threaded nuts, bushings, pins, and blades. Some types are even available with knurled outer surfaces that help them adhere to plastic.
In addition to being cost-effective, insert molding is environmentally friendly and compatible with many types of materials. Typical inserts are made of metal or plastic. Depending on the application, stiffening inserts may also be made from wood.
Importance of uniform wall thickness
The uniformity of wall thickness is an essential factor in the plastic injection molding process. It not only provides the best processing results, but also ensures that the molded part is consistently balanced. This uniformity is especially important for plastics, since they are poor heat conductors. Moreover, if the wall thickness of an injection molded part varies, air will trap and the part will exhibit a poorly balanced filling pattern.
Uniform wall thickness also helps reduce shrinkage. Different materials have different shrinkage rates. For instance, thick parts take longer time to cool than thin ones. As the part’s thickness increases, cooling time doubles. This relationship is due to the one-dimensional heat conduction equation, which shows that heat flows from the center of the part toward the cooling channel. However, this relationship does not hold for all types of plastics.
The general rule for maintaining uniform wall thickness in injection molded parts is that walls should be no thicker than 3mm. In some cases, thicker walls can be used, but they will significantly increase production time and detract from the part’s aesthetic appeal and functionality. Furthermore, the thickness of adjacent walls should be no thicker than 40-60% of each other.
The uniformity of wall thickness is critical to the overall quality and efficiency of the injection molding process. An uneven wall thickness can cause twisting, warping, cracking, and even collapse. A uniform wall thickness also reduces residual stress and shrinkage. Injection molded parts are more stable when the wall thickness is uniform.
An injection molded part with thick walls can be problematic, especially when the molded parts are shaped like a cube. A non-uniform wall thickness can result in problems and costly retooling. Fortunately, there are solutions to this problem. The first step is to understand the problem areas and take action.
Using 3D printing to fabricate molds
The use of 3D printed molds allows manufacturers to manufacture a wide range of injection molded parts. However, 3D-printed molds are not as strong as those made from metallic materials. This means that they do not withstand high temperatures, which can degrade them. As such, they are not suitable for projects that require smooth finishing. In order to reduce this risk, 3D-printed molds can be treated with ceramic coatings.
Using 3D printing to fabricate injection molds can help reduce costs and lead times, allowing manufacturers to bring their products to market faster. This process also has the advantage of being highly efficient, as molds made using 3D printing can be designed to last for many years.
The first step in fabricating an injection mold is to design a design. This design can be complex or simple, depending on the part. The design of the mold can be intricate. A simple example of a mold would be a red cup, with an interior and exterior. The interior portion would have a large cone of material protruding from the other side.
Injection molding is an effective way to produce thousands of parts. However, many engineering companies do not have access to expensive 3D printers. To solve this problem, companies should consider using outside suppliers. In addition to speeding up the manufacturing process, 3D printing can reduce the cost of sample parts.
Plastic injection molding still remains the most popular method for high volume production. However, this process requires a large up-front capital investment and takes a while to adapt. Its advantages include the ability to use multiple molds at once, minimal material wastage, and precision dosing. With an increasing number of materials available, 3D printing can be a smart option for companies looking to manufacture a variety of plastic parts.
editor by CX 2023-11-14