Dust bag from raw materials to finished products need a lot of processes, each process requires strict control, if the filter bag quality problems, and more in the bag of raw materials, bag diameter, bag length, pocket spring coil, sewing thread.
Dust bag processing Note:
Bag length is too long will cause the bottom of the filter bag wear, especially the bag bottom up 100 mm or less, the main bag length of more than 30 mm bag filter bag filter shrinkage is too large, bag bag bottom up 100 mm, Will and bag cage bottom friction, the final wear bag. Damage traces mostly from the inside out, at the bottom of the bag folds at the break.
Bag ring is related to the bag sealing, load-bearing and other important links, spring break occurred in the dust bag storage improper spring oxidation or rusty spring steel rigid too brittle, the former belongs to the customer reasons, the latter belongs to the supplier reason . Spring is too soft as long as it does not affect the installation of the filter bag is no problem, if not installed to be replaced to the supplier.
Most of the sewing thread breakage is caused by wear, fracture surface obvious wear and tear. There are sewing thread and bag material caused by different, but this situation is very low probability of fracture surface was crushed or strong decline in fracture.
Bag detection: professional testing tools, improve the quality inspection system to ensure that the quality of each dust bag. As the filter material market is becoming increasingly competitive, many manufacturers greatly reduced the quality, especially in this order to remind users to pay attention to the following items in the bag bag.
Dust bag from raw materials to finished products need a lot of processes, each process requires strict control, if the filter bag quality problems, and more in the bag of raw materials, bag diameter, bag length, pocket spring coil, sewing thread.
Dust bag material use error is the supplier of the lowest level of error, but there are a few suppliers in order to save costs just as much. All filter media should be made of the same material, but can also be used instead of high-grade materials, but can not use low-grade materials, such as PPS bag using PTFE sewing thread is possible to use glass fiber sewing thread is not possible.
The size of the bag diameter determines the tightness of the filter bag and the perforated plate. When processing the new filter bag, the supplier and the customer should communicate well to avoid mistakes. If the bag diameter is too large, you can cut in the pocket edge of the equal distance from the media, removal of the length should not exceed 20 mm, reducing the outer diameter of the bag in order to install. If the pocket diameter is too small, you can outsource the bag at 300 ~ 400 mm with the material edge, the length of the edge of the bag to adjust the degree of tightness.
However, good steel is used in the blade, the good material is not a good use? In the exchange with the downstream business, we understand that most of the filter material with PTFE filter bags of decay, temperature, etc. Chemical properties, and some of the physical properties of PTFE bag, including the fiber density, shape, such as the lack of essential physical indicators of the necessary understanding, resulting in the use of the material into the errors, the impact of acupuncture or water Thorn filter material quality, but also cause unnecessary waste of raw materials.
PTFE dust bag is a valuable resource that can not be regenerated. Although we in the fiber manufacturing process of waste, waste also has a certain value of recycling, but basically the primary manufacturing process of waste, waste after reprocessing, the use of low-end materials. As for the filter bag, especially through the composite combing technology and other fibers mixed with the use of PTFE dust bag recycling technology, is not yet a breakthrough issue. As we all know, PTFE is a non-degradable material, those retired bag, waste in the manufacturing process, whether the waste will pollute the environment? The conclusion is obvious.
