Dust bag from the raw material to the finished product requires a lot of processes, each process needs to be strictly controlled, if the filter bag appears quality problems, mostly in the filter bag material, bag mouth diameter, filter bag length, bag mouth coil, sewing thread.
Dust bag processing precautions:
The length of the cloth bag will cause the lower part of the filter bag to wear, especially within 100mm of the bottom of the bag, mainly because the length of the dust bag exceeds the length of the bag cage by more than 30mm, the filter bag shrinks too much during filtration, and the bottom of the filter bag is 100mm upward. It rubs against the bottom of the bag cage and eventually wears the bag. The signs of damage mostly from the inside to the outside, broken at the bottom of the bag folds.
Bag spring coil is related to the important aspects such as the sealing and load-bearing of the filter bag. The breakage of the spring sheet occurs when the dust bag is improperly stored and the oxidation of the spring sheet is rusted or the steel sheet is too hard and brittle. The former belongs to the customer and the latter belongs to the supplier. . If the spring clip is too soft, there is no problem if it does not affect the installation of the filter bag. If it cannot be installed, it must be replaced with the supplier. The
Most of the sewing thread breakage is caused by wear, and the fracture surface has obvious wear marks. There are also different sewing thread and filter bag materials, but the probability of such occurrence is extremely low, and the fracture surface is crushed or strongly broken.
Bag testing: professional inspection tools, perfect quality inspection system to ensure the quality of each dust bag. Due to the increasingly fierce competition in the filter material market, many manufacturers have greatly reduced the quality, and hereby remind consumers to pay attention to the following matters when ordering the dust collector bag. The
Dust bag from the raw material to the finished product requires a lot of processes, each process needs to be strictly controlled, if the filter bag appears quality problems, mostly in the filter bag material, bag mouth diameter, filter bag length, bag mouth coil, sewing thread. The
The use of raw materials for dust bag is the lowest level of error of the supplier, but there are also a few suppliers who are spending more to save costs. All filter media on the filter bag should be made of the same material, but can also be replaced with high-grade materials, but can not be made with low-grade materials. For example, PTFE sewing thread can be used for PPS filter bags, and the use of fiberglass sewing thread is not allowed.
The size of the bag mouth diameter determines the tightness of the filter bag and the perforated plate. The supplier and the customer need to communicate well when processing the new filter bag to avoid mistakes. If the bag mouth diameter is too large, you can remove the filter material at the equilateral distance at the mouth of the bag mouth. The length of the cut should not exceed 20mm, and the outer diameter of the bag mouth should be reduced for installation. If the diameter of the bag mouth is too small, 300-400mm of the same material strip can be wrapped at the bag mouth. The length of the strip is adjusted according to the tightness of the installation bag mouth.
