Leather belt QB/T1618-2006 inspection
[ 2023-12-05 ]
Belt refers to a leather belt. The international community advocates environmental protection, so PU belts are the most popular, while leather belts are becoming increasingly scarce in the market. China is the world's largest belt exporter. Belts exported to the European Union and the United States must meet strict environmental and non-toxic standards. The current popular leather belt is in a gradually widening and lengthening style, with one end wide and one end narrow, and the width can reach over 12 centimeters. It is decorated with shiny metal buttons and has a variety of colors, such as bright red, lake blue, Wei purple, goose yellow, milky white, etc. Today, BAIJIAN will introduce relevant testing knowledge to everyone. BAIJIAN provides authoritative and effective testing reports, mainly covering food, agricultural products, environmental soil, environmental protection, industry standard training, retail services, etc., providing convenient testing services for you. If you need it, you can contact us. Inspection scope: leather belt, touch belt, woven belt, synthetic belt, plastic belt, nylon belt, magnet protective belt, and leather belt. Inspection item 1: Appearance inspection. Visually inspect the surface of the belt for scratches, cracks, burrs, and any defects that may affect its use, such as aging or oil stains. 2. Dimensional measurement and calculation. Measure based on the type, width, and thickness of the belt, and calculate the total mass of the belt (including the weight of the inner and outer layers). 3. Tensile testing. Measure the maximum tension and static tension on the belt using a dedicated dynamometer; The tensile strength can also be measured by weighing the circumference of each meter with a micrometer; Alternatively, apply pressure on both sides of the belt using the pressure roller method to determine its yield point; The magnitude of its bearing capacity can also be determined through the measured peel strength. 4. Bending test. Use a dedicated bending plate to conduct a bending test on the belt to determine whether the conveyor belt of this specification can meet the requirements of the specified conveying angle and transportation distance. 5. Tear resistance test: The ratio of the instantaneous speed vmax when the entire roll of tape is broken after operating under a specified high load (such as 1000kn) for a certain period of time to the specified value is called the tear index b. The general requirement is greater than 30%. 6. Elongation test: Stretch the specimen to the difference between the height h1 at fracture and the initial length l0 δ The ratio of h1 is called elongation δ E. Usually taken δ E ≥ 10% is a qualified product P>
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