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china latest news about Plastic raw material baking conditions

Plastic raw material baking conditions

October 21, 2023

Number Raw material Color Drying temperature (℃) Drying time (Hr) Molding temperature (℃) Circulation temperature (℃) 1 LCP B 140±10 4-8 300-340 80-110 W 140±10 4-6 300-340 80-110 2 PA66 B 100±10 4-8 260-320 80-110 W 80±10 4-6 260-320 80-110 3 PBT B 140±10 3-5 230-270 80-110 W 120±10 4-6 230-270 80...
china latest news about Why does plastic material turn yellow after injection molding? The main causes and improvement of yellowing

Why does plastic material turn yellow after injection molding? The main causes and improvement of yellowing

October 20, 2023

Yellowing refers to the phenomenon of an item turning yellow when exposed to natural light, ultraviolet radiation, heat, oxygen, stress, chemical etching, moisture, and other conditions, as well as improper production processes. This is the basic definition of yellowing. The main reasons for ...
china latest news about CNC mold processing technology 12 standards

CNC mold processing technology 12 standards

October 19, 2023

1. Processing technology of inclined top guide block 1) Wire cutting processing: cut the shape quickly by wire, leaving a grinding machine. 2) Grinding machine processing: grind the hexagon square to ensure accurate outer dimensions. 3) Milling machine processing: threading holes and screw holes. 4) ...
china latest news about CNC mold processing technology 12 standards

CNC mold processing technology 12 standards

October 18, 2023

1. Craftsmen compile craft cards 1) When the craftsman compiles the process card, he must specify the processing reserve amount, the direction of the reserve amount, roughness requirements and precautions in the process card. 2) Principles for writing processing process flow cards: On the premise of ...
china latest news about CNC machining knowledge - process knowledge

CNC machining knowledge - process knowledge

October 17, 2023

1. Holes with an accuracy less than 0.05 cannot be milled and require CNC processing, if it is a through hole, wire cutting can also be done. 2. The fine hole (through hole) after quenching needs wire cutting processing, the blind hole needs rough machining before quenching and finishing after ...
china latest news about CNC machining knowledge - machining equipment

CNC machining knowledge - machining equipment

October 16, 2023

1. Ordinary lathe Lathes are mainly used to process shafts, discs, sleeves and other workpieces with rotating surfaces. They are the most widely used type of machine tool processing in mechanical manufacturing(achievable accuracy 0.01mm). 2. Ordinary milling machine It can process flat surfaces, ...
china latest news about CNC machining knowledge - three parts of abnormality analysis

CNC machining knowledge - three parts of abnormality analysis

October 14, 2023

When the materials are fixed, the reasons from the following major aspects: 1. Clamping: whether the tooling fixture is used appropriately, including selection type, layout position, clamping strength, and reference plane selection. 2. Chips: including tool selection, tool edge, feed speed, chip ...
china latest news about What is machining accuracy? Interpretation of dimensional accuracy, shape accuracy and position accuracy

What is machining accuracy? Interpretation of dimensional accuracy, shape accuracy and position accuracy

October 13, 2023

1. Dimensional accuracy The degree to which the actual size of the processed part matches the center of the tolerance zone of the part size. 2. Shape accuracy It refers to the degree to which the actual geometric shape of the machined part surface matches the ideal geometric shape. 3. Position ...
china latest news about Polyacetal (POM) characteristics, advantages, disadvantages, and uses

Polyacetal (POM) characteristics, advantages, disadvantages, and uses

October 12, 2023

Characteristic It's a crystalline thermoplastic plastic with an obvious melting point of 165~175°C. Its properties are closest to those of metal. It is generally called plastic steel. Advantages 1. High mechanical strength and rigidity. 2. High strength. 3. Good environmental resistance and ...
china latest news about Characteristics and uses of TPE plastic materials, advantages and disadvantages of TPE plastic

Characteristics and uses of TPE plastic materials, advantages and disadvantages of TPE plastic

October 11, 2023

Thermoplastic elastomers (TPE) are generally elastic materials with a low elastic modulus that can be repeatedly stretched to more than twice their original length at room temperature and have the ability to almost completely return to their original length after the stress is relieved. Early ...
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