Rubber joint consists of flange and rubber ball. Both of them are important. For the surface treatment, there are galvanization and painting. Then which on is better? Let’s talk about it. Rubber soft joint is mostly used in the connection of pipes which need noise reduction, shock absorption and displacement absorption. Same as long distance…
We are familiar with vacuum cleaner and most of us may use it. Vacuum leaner consists of soft brush, handle, hose and many others. There are various vacuum cleaner hose. Let me introduce you. EVA Hose EVA hose is a dedicated hose for vacuum cleaner. It’s light in weight, floatable and resistant to crush. Besides,…
In the traditional concept, metal material is solid and durable. Some people even think there will never be problems on metal hose. But the truth is not that. There will be leakage on metal hose and let’s analyze the reasons next. Crack in the weld The flexible bellow section in metal hose is longitudinal seam…
Fresh air system is very important in the decoration of a new house. There are rigid pipe and soft pipe (hose) for the fresh air system. Let’s talk about them. Soft Pipe The common fresh air system hose is also called duct hose or ventilation hose. Normally it’s made from composite. There is a PVC…
It’s not a long time that human use rubber. The demand of rubber is a explosive growth since modern times. Rubber is a very important material in our daily life. Without rubber, we can’t drive our cars, we will be hurt if we fall over on the playground. We even can’t remove the pencil marks…
During the rubber processing, there may many questions appear. Let’s talk about these questions this time. Why we should plasticate rubber The plastication is to cut the big molecular chain shorter with the function of machine, heat and chemical. This will reduce the elasticity briefly and increase the plasticity to meet the technology requirements. The…
In the previous article, we analyzed the reasons cause bubble during vulcanizing. This time let’s learn how to solve such problem. Methods for material 1. Take drying measure after cutting rubber. Strictly control the moisture and volatile matter. Besides, reduce the moisture content in raw rubber. 2. Take anti-moisture measures when store chemicals and…
During the vulcanizing, bubble is a common quality problem. It has bad influence to the appearance and cause serious effect to the quality. Worse more, bubble problem is a huge impact to company’s brand and the clients may not trust you. According to the test and analyze, the reasons of bubble problem are many…
After the war between Russia and Ukraine, western countries lead by US declared that they will impose serious sanctions to hurt the Russia economy basis deeply. In which include cutting off the SWIFT system. But many European countries oppose this sanction. Why? Before analyzing the reason, let’s know what is SWIFT and what’s the importance…
The war in Ukraine has lasted for 3 days. Such situation has deeply influenced the global economy. Almost all of the stocks fall during the 3 days and looks like stocks will constantly fall in the next days. Here is the question that what the war bring to foreign trade in macroscopic level. First…