Rapid Prototyping Service

The reason and solution for surface roughness

Surface roughness means there is a lack of precision in the surface of a molded part, or an inconsistent level of precision all over the surface, e.g. some areas are glossier than the rest. The main reasons for surface roughness might lie in the injection molding machine, the mold, the process or the material.
 
(1)Injection Molding Machine
①Insufficient material supply;
②Material barrel is not thoroughly cleaned when changing material;
③Check for cold melt leakage at the nozzle;
 
(2)Mold
①The gate is too small, or the runner […]

Common failure of injection mold

1.1 Mold reset plate is not reset
After the mold is opened, the mold reset plate is not reset. The causes are: reset oil cylinder oil leakage, resulting in uneven force when the mold is reset. The mold reset is unbalanced.
The reset rod of the mold is strained, the cooperation between the reset rod and the guide sleeve is tightened, and the reset plate is not topped.
Solution: Check if the oil seal of the mold reset cylinder is worn out. If […]

PMMA Plastic Injection Molding Process

PMMA, i.e. polymethyl methacrylate, also known as acrylic or organic glass, is a transparent thermoplastic with a relative density of 1.19, which is higher than that of water. With a high surface glossiness, the PMMA products are characterized by strength, rigidity and toughness.
The process features of PMMA: due to the high viscosity, PMMA has a poor fluidity. Therefore, a high material temperature and a high injection pressure must be applied during the injection molding process, among which the influence […]

Discoloration issue in plastic injection molding

Discoloration means the surface color of a molded part is not consistent with the required color. Discoloration may be caused by a variety of reasons, which may cover the several aspects of injection molding machine, mold, process and raw materials, etc.
(1) Injection Molding Machine
① Equipment is not clean and needs to be cleansed. Dusts or powders are deposited in the barrel, which contaminates and discolors the materials;
② Temperature control failure caused by malfunction of thermal couple, temperature controller or […]

How to get injection mold quotation from mold maker?

How to get injection mold quotation from mold maker?
Although there are countless creative people with great creativity in this world, sometimes they just do not have the necessary knowledge to turn the creative ideas into reality.
If a project involves parts made of the plastic material, it might be appropriate to adopt the plastic injection molding process. Injection molding, the technique of choice for a large number of entrepreneurs and OEMs, is well known for its capability to turn out high volumes […]

Why the injection molding become so popular in manufacture

Definitely, if one of the spare parts on your machine or equipment does not function properly, you will need to order a new one for a replacement. However, if your equipment is custom-made, you will have to produce or purchase a customized spare part. But, this process will take a long time, depending on how difficult the part is manufactured and what kind of materials are used. However, if you already have a plastic injection mold which produces parts, it will be quite […]

Rapid Prototyping & Manufacturing China – Electroplating Process of Prototypes

Why shall the prototypes be electroplated? 
 
After the prototypes or parts are formed, the metal luster on their surface is dull. While the surface of prototypes subjected to electroplating process are covered with metallic luster. Through electroplating, prototypes are rust and wear resistant, improved in electrical conductivity, lubricity, strength, heat resistance and weatherability. The surfaces of electroplating, prototypes are more attractive.
 
How to electroplate the prototypes? 
 
Electroplating is a process to form a coating on the parts to be electroplated by connecting the metal at the anode […]

Rapid Prototyping Service: Advantages and Disadvantages of PMMA Prototypes

The PMMA material is also known as plexiglass, which is one of the materials in fabricating prototype.
 
PMMA is a kind of plastic of high light transmittance which can be plasticized after being heated. It can allow about ninety-nine percent of light and seventy-three percent of ultraviolet (UV) to transmit through it. PMMA also has high mechanical strength that enables it to be used at high temperatures and adapt various climates. It is corrosion resistant and non-conductive. Under certain to conditions, its […]

Development trend of Rapid Tooling Technology

With the development of rapid prototyping and rapid tooling manufacturing technology, in the near future, high precision rapid tooling will have great development. It is mainly manifested in the following aspects:
 
First, improve the performance of rapid tooling and improve the accuracy of rapid tooling. Good mold performance and high die accuracy are the key issues in the application and promotion of rapid tooling.
 

Improving the performance of the rapid tooling: In order to obtain high-quality product parts and better mold […]

What Are Suitable Materials for Prototype?

In the following four materials for prototype, only black PC can be spliced, while the other three materials cannot be spliced but manufactured in one piece instead.
1.Prototypes of conventional products are generally made of ABS material,and the prototypes made of ABS are easy to machine,and more pleasant looking after treatment.
2.Prototypes of high temperature resistant products can be made with materials including(1) epoxy resin; (2)bakelite; (3) black PC; (4) PA (nylon).
3.Prototypes of wear resistant products can be produced withPOM or PA. […]