For the development of the current logistics industry, we have seen the busy operation of the cranes on the shore. Many special requirements for cranes on the shores are even higher. In today's life, we can know that the use of cranes is some. The lifting and unloading of the cargo, however, what kind of design is different in the crane on the shore, and now looking for different aspects of the crane brake.
Disc brakes have the following benefits compared to wheel brakes:
1 Good heat dissipation. It is 4 times the diameter of a similar brake wheel. Since the wrap angle of the brake pads of overseas drum brakes in China is usually 70°, the area around 140° or 360° (there is 88° wrap angle in Japan) is forgiven, and the disc brakes are The contact area between the brake pad and the brake disc is very small, often referred to as the point dry. The small amount of heat generated during the braking process is dissipated through the two appearances of the brake disc, and the brake disc can be manufactured at the same time. The ventilating disk increases the heat dissipation area, thereby advancing the service life of the brake pad and preventing it from being hot;
2 Apply for small space tripod torque. By installing multiple brakes on the counter, it is possible to plan the hub title problem of the large braking torque in the smaller space.
3 The thermal compression of the brake disc is very small, and a small retreat can be taken to shorten the response time;
4 Small size, easy to install and assemble;
5 The transfer inertia of the brake disc is much smaller than that of the brake wheel. Under the driving of the abnormal power motor, the brake disc starts and stops much faster than the brake wheel. For example, the YPZ2 series arm disc brakes produced by Jiaozuo Brake Co., Ltd. have automatic compensation devices, such as the back-off device, and the brake shoes are automatically placed with the position. It is not necessary to adjust the position after one rotation, until the new bucket is changed. The best choice for heavy mechanical brakes.
Plant same with our body, which is not only need N P K,but also need some trace elements. These Trace Element has been playing a very important role. We can supply every sigle trace element like EDTA-Cu, EDTA-Fe , EDTA-Mn, EDTA-Zn, Boron, Mo and so on. They can adjust the metabolism of plant. Different crops have different reqquirements about trace elemnt. Farmers need to learn how to control the content.
Trace Element
Trace Element,EDTA-Cu,EDTA-Fe,EDTA-Mn,EDTA-Zn
Hebei Monband Water Soluble Fertilizer Co., Ltd. , http://www.wsfertilizer.com