Ji Jin is a professional engaged in various types of plastic mold design, manufacture and injection molding processing of production-oriented enterprises.
1. Tensile strength is divided into tensile strength and tensile strength.
The cable tie supporting force is the standard for testing nylon cable tie shoes and trousers. When a certain amount of force is increased, whether it is broken or reversed, the top of the head cracks. How to break must be above the nominal pressure tensile strength. The tensile strength is used to test the firmness of the nylon cable tie. When the strength is above the required index value, the firmness of the cable tie can be ensured.
2. The flexibility of the product is generally inversely proportional to the tensile strength. How to ensure support? Achieving commodity tensile strength and flexibility specifications is the key index value for testing high-quality cable ties. Generally, the flexibility of the nylon cable tie is qualified when it is stretched and contracted at 180 times for 10 times at room temperature without cracks. Generally, the nylon cable tie (85) is qualified for baking for 24 hours, and the high-temperature nylon cable tie (130) is qualified for baking for 24 hours.
The above inspection can only be carried out based on tests. Generally, high-quality nylon cable ties can also be distinguished by touch:
The high-quality cable tie has good flexibility, excellent plasticity, silky and firm touch, and can be stretched at 180 degrees for more than 10 times at any place without cracks. The appearance quality of nylon cable ties The key to nylon cable ties is the toothed belt, the tooth cavity on the top of the head and all the belt conditions. A good nylon cable tie has no skin and no remaining teeth, and it feels smooth and clean. Concentricity, especially the technical professional nylon cable tie of the automatic cable tie machine, has high requirements for appearance quality, essential tensile strength, leading performance, and compression strength of the transmission belt, otherwise it cannot be met. It is fully automatic regulation that a good nylon cable tie should be completely transparent and clear, slightly yellow in color, not turbid or black, and good raw materials are the key to quality.
The cable tie to maintain the tightness is critical. Nylon cable ties are made of nylon 66 approved by UL. It is made of injection molding, with a flame-retardant grade of 94V-2, acid resistance, corrosion resistance, good dielectric strength, not easy to embrittlement, and strong bearing capacity. The general operating temperature is -30 to +80 (different well-known brands of nylon 66 have different characteristics and different available temperature ranges).
There are many kinds of plastic cable ties raw materials, such as cable ties series products, nylon cable ties series products, cable ties series products and so on. Pa (acrylic resin), PP (polypropylene), PVC (polyethylene), PE (high pressure polyethylene) are common, others are relatively rare. Plastic cable ties are generally understood as the category of locking nylon cable ties, and are one of the most common binding equipment.