Closed steel drums have threaded plugs, while open steel drums have nuts on the drum hoops with bolts. Some factory inspectors will tighten loose plugs or bolts during regular inspections, thinking that this will prevent quality issues with steel drums. Experienced barrel makers say that it's best not to do this, because over-tightening plugs and bolts will increase the likelihood of problems.
When it comes to ensuring the efficiency of steel drum closures, it is crucial to follow proper bolt tightening methods. So, what methods are available to control bolt tightening?
Definition: A control method that stops tightening immediately when the tightening torque reaches a set control torque.
Advantages: Simple and direct control system, easy to check tightening quality with torque sensors or high-precision torque wrenches.
Disadvantages: Low control accuracy (torque error ±25%), and it cannot fully utilize the potential of the material.
Definition: A control method that tightens the bolt to a small torque first, and then tightens it a specified angle from this point.
Advantages: High precision of axial preloading of bolts (±15%), and can obtain a large axial preloading force with a value that can be concentrated around the average.
Disadvantages: The control system is more complex, requiring measurement of both torque and angle; and the quality inspection department may not find an appropriate method to check the tightening results.
Definition: A method of stopping tightening by tightening the bolt to the yield point.
Advantages: Tightening accuracy is very high, with a preloading force error that can be controlled within ±8%, but its precision mainly depends on the yield strength of the bolt itself, which requires careful selection of high-quality steel drum parts.
Disadvantages: The tightening process requires dynamic and continuous calculation and judgment of the slope of the torque and angle curve. The control system requires high real-time performance and computing speed.
The Development of Green Packaging - 翻译中...April 14, 2023Compared with international advanced level, Chinese packaging technology is backward, so to improve packaging level, we should start with improving packaging technology, and increase the capital inves...view
The Dragon Bavoine FestivalJuly 1, 2022Today est notre festival traditionnel, le rragon Boat estiestival. The Dragon Boat Festival, également connu sous le nom de estiuanyang estiestival, Dragon Boat estiestival, Tianzhong estiestival et ainsi de suite, originaire du moût...view
The development trend and use of closed steel drums - 翻译中...August 7, 2023With the further deepening of China's opening up to the outside world, the national standard steel drum has been restricted in export packaging. In recent years, a number of steel drum enterprises...view
Performance et fonction des matériaux d'étanchéité pour les joints de bouchon de tambour en acierMarch 13, 2023Avec le développement de l'économie orientée vers l'exportation du pays, le volume des exportations de matières premières augmente constamment, et divers fabricants de joints de capuchon de tambour en acier attachent une grande importance à im...view
Générateur d'éthylène d'éthylène: émolette d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène d'éthylène! D'érices d'ére d'éigh!June 30, 2022In ururope, les médias ont fait état de délais d'exécution plus longs et plus longs dans les aciéries et de retards sérieux dans la livraison de l'acier déjà commandé. Fou exemple, andreas Schneider, un bien-k...view
How to Choose the Most Suitable Packaging Drums for Dangerous Goods? - 翻译中...April 24, 2023Choosing the right packaging container is absolutely necessary whenever you store or transport hazardous materials. Choosing the wrong container to store harmful substances can cause damage to the con...view
EN
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
