Yangzhou
Chengde (YC) is one of the best pipe manufacturers in the world, and the
production diameter from 8" to 48" in OD and wall thickness from 9.53 mm up to
140mm. We can produce all the carbon steel pipes according
to the ASME, ASTM and EN standards, Such as the 106B/C Steel Pipe,GR.6 steel
pipe,S235JRH steel pipe,S275J0H steel pipe,S275J2H steel pipe,S355J0H steel
pipe,S355J2H steel pipe,E355 steel pipe,P235GH steel pipe and P265GH steel
pipe.
YC has been
granted a number of approval certificate by international institutions, such as
Nuclear pipe certificate, 914mm Cylinder certificate, API monogram and
certificate, ISO9001 by TUV NORD, ISO14001/OHSAS18001 by CQC, approvals from
Shipping Classification Bureaus like DNV, RINA, ABS, Lloyd, GL, Bureau Veritas,
and permit of exporting to Europe as PED 2014/68/EU and AD 2000 certificates
for pressure pipes, CPD (Construction Products Directive), etc.
Carbon Steel Pipe,Seamless Carbon Steel Pipe,Nuclear Steel Pipe,Carbon Steel Tube YANGZHOU CHENGDE STEEL PIPE CO.,LTD , https://www.chengdepipe.com
Why do plastic bags vary in length when making bag mechanism bags?
In the process of bag making, the plastic bag making machine sometimes has different lengths of finished plastic bags, so that the products produced are unqualified, so what is the cause of this phenomenon? Today, China Plastics Industry website - Jiuzhi Plastics Network takes everyone to see what causes this phenomenon, as follows:
1. There is a lot of dust on the photoelectric head of the plastic bag making machine. When the dust on the photoelectric controller is too much, it will affect the luminosity and intensity of the laser, so that the length of the plastic bag cannot be accurately controlled.
2, the problem of photoelectric head equipment of plastic bag making machine. Because some manufacturers' bag making machine quality can not be guaranteed, the use of inferior photoelectric head accessories, resulting in substandard sensitivity, the solution is to replace the photoelectric head.
3. The speed of the plastic bag making machine is too high. Make some accessories can't be more rhythm, you should reduce the speed to test.
4, the longitudinal sealing knife hot cloth roll is too tight. Increased feed pressure.
5. The feeding and pressing devices of the plastic bag making machine are not synchronized. Feeding too fast, too slow or too tight, and the pressing device is too loose, this phenomenon is prone to the length of the plastic bag.
6, the bag making machine tracking power is not obvious. The quality of the tracking accessories is not good, or it is used for too long, the actual effect is not obvious, and the functions that should be performed should not be performed well.
The above is the reason why the length of the product is different when the plastic bag mechanism bag is used. I hope that these will be helpful to those who do not know the reason.