Standard for wire drawing machine
Release time:
2020-04-02
On June 28, 1999, the State Administration of Machinery Industry issued the current national standard JB/T 7910-1999 for wire drawing machines. The standard will be implemented from January 1, 2000. From now on, this standard will replace JB/T 7910-95. The national standard for wire drawing machines was issued as GB 10600-89 in March 1989 and adjusted to JB/T 7910-95 in April 1996. The current national standard JB/T 7910-1999 wire drawing machine specifies the type of wire drawing machine, the basic parameters of the wire drawing machine, the technical requirements of the wire drawing machine, the test method of the wire drawing machine, the acceptance rules of the wire drawing machine, the marking of the wire drawing machine, packaging, transportation and storage, and the manufacturing guarantee of the wire drawing machine.
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Finishing sensor: clean the detector cover regularly (once every four hours). When the machine is running, make sure that the white light is always on. The detector is designed according to the principle of infrared ray. Dazzling light will affect the performance of the sensor. Try to use only daylight tube near the machine. If the spindle surface is bright, the detector may not work accurately. Avoid using aluminum tube or black tube. Black yarn will make the detector unable to work.
A variety of materials with different characteristics are compounded to improve the air permeability, moisture permeability, oil resistance, water resistance, and chemical resistance of packaging materials, so that they can play an insect-proof, dust-proof, microbial-proof, light, fragrance, and odor Isolation, as well as heat resistance, cold resistance, and impact resistance, have better mechanical strength and processing applicability, and have good printing and decoration effects.
What are the classification of bags?
Plastic packaging bags include plastic woven bags and plastic film bags. The former has the characteristics of light weight, high strength, corrosion resistance, etc., after adding plastic film lining, it can be moisture-proof; light bag load weight below 2.5kg, medium bag load weight 25-50kg, heavy bag load 50-100kg.
The national standard GB/T8946-1998 stipulates that "the bag shall be flattened, and two squares of 100mm × 100mm shall be circled at the upper and lower diagonals of the bag. the outer edge of the square shall be 100mm apart from the edge line of the bag. the longitude and weft number of the squares shall be visually inspected and the average value shall be taken. when counting, when there is less than one ending point, it shall be counted as one." The national standard specifies the density of weaving and the density tolerance. The weaving density mainly depends on the packaging product and is determined by the user.
Due to product resources and price problems, China has 6 billion woven bags for cement packaging every year, accounting for more than 85% of bulk cement packaging. With the development and application of flexible container bags, plastic woven container bags are widely used in marine, transportation and packaging of industrial and agricultural products. In the packaging of agricultural products, plastic woven bags have been widely used in aquatic products packaging, poultry feed packaging, covering materials for farms, sunshade for crop planting, windproof, hail shelter and other materials. Common products: feed woven bags, chemical woven bags, putty powder woven bags, urea woven bags, vegetable mesh bags and other fruit eye bags, mesh bags
Standard for wire drawing machine
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