China Custom Plastic Mould Machining Parts Made to Order Plastic Lid with Hot selling

Product Description

Item:China Plastic Injection Molding Manufacturer OEM Made per Drawing or Sample Plastic Lid
Workshop View

Mold Material S45C, S50C, P20, 718H, 738H, NAK80, S136, S136H
Mold Life Time Life time warrange,you pay mold cost once and we will be responsible for all quality production 
Product Material  PC, ABS,PP,PC+ABS,PA, HIPS, PVC, PE, PS, POM, Acrylic,TPE,PET,GF filled PA etc
Surface Smooth, Glossy, Textured, Matte/Sandblasting
Color  Any Pantone or RAL color code is workable 
Drawing Format STEP/IGS/X_T,DWG,PDF
Secondary Service  Painting,Printing,Chrome Plating,Assembly etc.
Delivery Time 2 to 8 weeks depending on order size

Careful Working 

Example of What We Do

Company Introduction

Q: Are you a factory or trading company ?
A: We are a factory specializing in custom plastic injection molding parts,together with rubber parts and after-treatment of plastic parts such as painting,printing ,assembly etc .

Q:What info do you need if I want to get a quote for a custom plastic part ?
A: 3D drawing in IGS/STEP/X-T format is preferred .Otherwise  as long as other format can provide equivellent info ,it would be fine too ,such as CAD drawing with weight info provideded ,or samples sent to us for checking .
Also please state other related info such as what quantity you need,if there are any special requirements such as painting,printing,assembly etc .

Q:What material you can handle ?
A:We can make plastic parts in various kind of materials such as PC/PP/ABS/Nylon/PA6/PA66/TPE/PVC/PBT/Nylon with Glass Fiber/Polycarbonate with Glass Fiber/AS/PS etc and subber parts in NBR/Silicone  etc .

Q:I have a custom plastic part to make ,I have the design but I am not familar with injection so I am not sure if this part may shrink or not working with injection,can you advise ?
A:YES,we have an engineering team who is not only familar with part design but also familar with injection feasiblity ,once we receive the drawing ,we will check the feasiblity for injection and potential problems in the design.For example,if the part is designed with unnecessary plastic which will not only add cost but also cause sink parts at the surface of the part,we will feedback you before proceeding .

Q:What colors can you do with my plastic part? 
A :We can make any color that is in Pantone and RAL color system .

Q:What’s your lead time for mold and for production ?
A:Usually we can send samples in 30-35 days from mold order . Production lead time is 2 to 8 weeks depending on order size .

Q:What’s the mold life gurantee ?
A:We provide lifetime gurantee .For example,usually a mold would start to age after like 500,000 shots ,but if quantity can reach this level ,we will make a new mold at our expense to keep the stable production going on . So you pay mold cost once and we will be responsible for all production from this model .

Q:Is mold our property after we pay it in full ?
A:Yes,mold is the customer’s property after the customer pays it in full .We only keep it well  in house to serve the customer’s production needs . The mold won’t be changed unless with customer’s permission .We will not produce from this mold for any third party unless we have the customer’s permission .

Q:What’s your delivery terms ?
A:It’s EXW price for air shipment and FOB HangZhou for sea shipment .HangZhou is our nearest port as we are located in HangZhou ,we can also coordinate to ship to other ports or locations CZPT with negotiable price .

 

Material: PP, ABS.PC, PA, Nylon, PE, PVC, PS, POM etc
Application: Medical, Household, Electronics, Automotive, Agricultural
Shaping Mode: Injection Mould
Installation: Fixed
Customized: Customized
Mould Cavity: Single or Mutlti Cavity

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Customization:

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Mold Material S45C, S50C, P20, 718H, 738H, NAK80, S136, S136H
Mold Life Time Life time warrange,you pay mold cost once and we will be responsible for all quality production 
Product Material  PC, ABS,PP,PC+ABS,PA, HIPS, PVC, PE, PS, POM, Acrylic,TPE,PET,GF filled PA etc
Surface Smooth, Glossy, Textured, Matte/Sandblasting
Color  Any Pantone or RAL color code is workable 
Drawing Format STEP/IGS/X_T,DWG,PDF
Secondary Service  Painting,Printing,Chrome Plating,Assembly etc.
Delivery Time 2 to 8 weeks depending on order size
Material: PP, ABS.PC, PA, Nylon, PE, PVC, PS, POM etc
Application: Medical, Household, Electronics, Automotive, Agricultural
Shaping Mode: Injection Mould
Installation: Fixed
Customized: Customized
Mould Cavity: Single or Mutlti Cavity

###

Customization:

###

Mold Material S45C, S50C, P20, 718H, 738H, NAK80, S136, S136H
Mold Life Time Life time warrange,you pay mold cost once and we will be responsible for all quality production 
Product Material  PC, ABS,PP,PC+ABS,PA, HIPS, PVC, PE, PS, POM, Acrylic,TPE,PET,GF filled PA etc
Surface Smooth, Glossy, Textured, Matte/Sandblasting
Color  Any Pantone or RAL color code is workable 
Drawing Format STEP/IGS/X_T,DWG,PDF
Secondary Service  Painting,Printing,Chrome Plating,Assembly etc.
Delivery Time 2 to 8 weeks depending on order size

Designing Injection Molded Parts

Injection molded parts are a great way to produce fast, reliable parts without having to spend much time on post-processing. Whether you’re designing a small component or a large vehicle, you can expect your parts to be ready to use right away. Because of their high-speed production cycles, you can expect your parts to be delivered within 30 to 90 seconds.

Design considerations for injection molded parts

Injection molded parttWhen developing a medical device, there are several design considerations to be made to create a quality injection molded part. Typically, product designers want to minimize the amount of material needed to fill the part while still maintaining the structural integrity of the product. To this end, injection molded parts often have ribs to stiffen the relatively thin walls. However, improper placement of ribs or projections can create molding problems.
Design considerations for injection molded parts include the overall shape and finish of the part. There are several ways to make the part look better. One way is to make the surface smoother and less pronounced. This will help the material flow evenly throughout the mold and minimize the risk of parting lines. Another way to reduce the risk of sink marks is to reduce the thickness of ribs relative to the nominal wall thickness of the part.
A common problem encountered when designing injection molded parts is sink marks. These can be difficult to avoid. A molder may not be willing to guarantee the product’s surface is sink-free, so designers must make sure that sink marks are minimized. To prevent these problems, the design of the parts should be as simple as possible.
Injection molded parts can also have complex geometries, and the design process is incredibly flexible. A good molder will be able to reproduce complex parts at low cost. To get the best possible results, designers should discuss the design and process with the molder. They should also discuss with the molder any critical tolerance specifications. The designer should also consider reworking the mold if necessary.
The wall thickness of a plastic injection molded part should be consistent. This is important because it influences the part’s functionality and performance. An uneven wall thickness can result in sink marks, voids, and other undesirable effects. It may also result in excessive plastic pressure or cause air traps.

Materials used in injection molded parts

When designing a product, materials used in injection molding are an important factor in the end result. These materials vary in strength, reusability, and cost. Understanding these differences is essential for ensuring the best product. In addition, understanding the characteristics of these materials can help you plan your budget and determine which ones are right for your application.
Choosing the wrong material can have serious consequences. In addition to premature component failure, the wrong choice can also increase your cost. To avoid such an occurrence, it’s a good idea to seek expert advice. Expert consultations can help you understand the factors that are important for your particular plastic molding project.
Fortron PPS: This thermoplastic resin offers excellent strength, toughness, and chemical resistance. It’s also stiff and durable, which makes it ideal for demanding industrial applications. Other common plastics include Nylon 6/6, which is strong and lightweight. Its high melting point makes it a great replacement for metal in certain environments. It also offers desirable chemical and electrical properties. PEEK is another common material used in injection molding.
ABS: Another engineering grade thermoplastic, ABS offers excellent heat resistance and chemical resistance. The disadvantage of ABS is its oil-based composition. As a result, ABS production creates noxious fumes. Nylon is another popular plastic for injection molding. Nylon is used in many different applications, from electrical applications to various kinds of apparel.
Injection moulding is a process where raw material is injected through a mold under high pressure. The mold then shapes the polymer into a desired shape. These moulds can have one or multiple cavities. This enables manufacturers to create different geometries of parts using a single mould. Most injection moulds are made from tool steel, but stainless steel and aluminium are also used for certain applications.

Characteristics of injection molded parts

Injection molded parttInjection molded parts exhibit a range of mechanical and physical properties. These properties affect the performance of the parts. For example, they can affect electrical conductivity. Also, the degree of filling in the parts can determine their mechanical properties. Some studies have even found that filling content can affect the dimensional accuracy of the parts.
To ensure the highest quality of the molded parts, it is important to inspect the machines and processes used to manufacture them. Proper maintenance can prevent mistakes and prolong the service life of the components. Moreover, it is essential to clean and lubricate the machine and its components. This will also reduce the possibility of mold errors.
The temperature and pressure characteristics of the injection mold can be characterized with the help of a simulation tool. For example, in a simulation environment, the injection pressure can be set as a profile and is equal to the pressure in the flow front. Moreover, the maximum injection pressure can be set as a value with minimum dependence on the flow rate. The temperature of the material used in the injection mold should be within a recommended range.
The temperature and pressure of the mold cavity must be monitored to ensure proper ejection. The temperature of the injection mold cavity is usually set at a temperature slightly above the ejection temperature. This can be manually or automatically. If the temperature is too high, the part will not be able to eject. The rapid temperature change can cause the part to warp. The same applies to the cooling time of the mold and cavity.
The thickness of the molded part should be uniform. If the injection mold does not conform to the required thickness, sink marks may be visible. A minimum of 2.5 mm between the outer and inner diameters is required for proper ejection.

Common problems encountered

There are several common problems encountered during the production of injection-molded parts. One of the most common of these is sink marks. These appear on the surface of the part and are a result of uneven cooling of the plastic within the mold. This problem can be caused by poor mold design, insufficient cooling time, and/or low injection pressure.
The first common problem occurs when the mold is not tightly clamped. This causes the molten plastic to be forced out of the mold. Other problems may occur due to the wrong clamping pressure or temperature. In these cases, the clamping force should be increased or the mold design should be revised to allow the plastic to flow properly through it. In addition, a poor quality mold may cause flash or burrs.
Another common problem is wavy patterning. These two defects can affect the appearance and functionality of the part. To avoid these problems, work with an experienced injection molding manufacturer who has experience in these types of parts. They will be able to troubleshoot and minimize any potential risks.
One of the most common problems encountered in injection molding is discoloration. A discolored part will be black or rust-colored. This problem is caused by an excess of air in the mold cavity, and can be avoided by reducing the injection speed. Ventilation systems can also be adjusted to minimize the chances of these problems.
Defective molds can cause a negative impact on the bottom line. By understanding the common problems encountered during injection molding, you can better avoid these problems and make your products as attractive as possible.

Fasteners used in injection molded parts

Injection molded parttInjection molded parts often use fasteners for securing fastener elements in place. As shown in FIGS. 7 and 8 (two separate views), the fastener elements are integrated with the molded product, and they extend from one side. The fastener elements are designed to engage loop elements in the overlying layer. The palm-tree shaped fasteners are especially well-suited for this purpose, as their three-dimensional sides engage more loops than flat sides. These features result in a more secure closure.
When fasteners are used in injection molded parts, the plastic is injected into a mold, with the fastener integrated. In addition to self-tapping screws, other plastic fasteners can include moulded or pre-drilled pilot holes. This method avoids the need for a secondary assembly step and ensures an easy fit. These screws also have other advantages, including a smaller thread profile and lower radial stress, which prevents boss damage.
Another type of fastener commonly used in injection molded parts is a boss. This type of fastener is typically larger than the nut and the pilot hole. An undersized boss can lead to warpage during the injection molding process and cause a product to fail in the field.
Another type of fastener used in injection molded parts is a thread insert, which is usually a stainless steel A2 wire. There are different versions of this fastener for different materials, including carbon fiber reinforced plastic. And the fastener can be modified to adjust the size of the hole.
These fasteners are used in many different types of injection molded parts. Some parts are used to fix a variety of cosmetic issues, such as minor sinks. While these are not defects, they may not look perfect, and they can affect the overall appearance of a product. If you want to improve the appearance of an injection molded part, you can add fibers and glass fibers, as well as colorants.
China Custom Plastic Mould Machining Parts Made to Order Plastic Lid     with Hot selling		China Custom Plastic Mould Machining Parts Made to Order Plastic Lid     with Hot selling
editor by czh 2022-12-07