Analyze the future development trend of U.S. fasteners
The basic knowledge of maintenance-free lead-acid battery people often say that the regular name of the maintenance-free battery is called the valve-controlled sealed lead-acid battery. Valve controlled sealed lead-acid battery from the appearance including, shell, valve cover, wiring terminals. The sealing material around the terminal is red and black (or blue) respectively to indicate the positive and negative terminals. The 12V battery is divided into 6 independent isolated cells, each cell has a positive plate group and a negative plate group connected by their own bus conductor. The plate of the lead-acid battery is like the structure of reinforced cement, which is formed by coating (or rolling) active substances on the sieve skeleton of the alloy wire: the material on the positive plate is lead dioxide (PbO), and the material on the negative plate is velvet lead (Pb). Each of the positive and negative 2.
The plates are separated by porous microfiber material (or filled with silica gel material), which adsorbs sulfuric acid (HSO) electrolyte.
This fiber material (or silica gel material) is the liquid and gas transport channel during the electrochemical reaction process, it is tightly assembled with the positive and negative plate groups to form a 2V cell. Since the plates of lead-acid batteries inevitably produce hydrogen and oxygen when they are being charged, pressure builds up in the cell when they produce too much and are not ready to melt into water. In order to ensure the normal and safe work of the battery, each single cell has its own air overflow valve, when the pressure is excessive, let the gas escape automatically. Compared with the battery tank filled with full of electrolytic liquid inside the battery, the valve controlled sealed lead-acid battery contains only a small amount of electrolyte inside, also called: the lean battery. However, due to the design of the electrolyte has a certain redundancy, and under the protection of the overflow, as long as the valve pressure be reasonable used, the water loss is minimal which is caused by the gas escape, and the valve control battery electrolyte in the life process of the basic need not supplement, so the valve control sealed lead-acid battery is also known as maintenance-free battery.
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The development prospects of the U.S. fastener industry are still very large. With the gradual recovery of the U.S. economy, U.S. fastener industry is gradually on the right track. The fasteners will develop in the following four major trends:
1. The U.S. real estate and construction industry will fully recover. However, the development of the fast-changing fastener industry still needs to wait until a large amount of backlog inventory is exhausted by the market before it can be determined. This also depends on the recovery of the employment rate in the United States, because the employment rate directly affects the confidence of American consumers in buying new homes. In spite of this, we hope that in the future, with the increase in the number of housing improvements for improved households, the US real estate market will be able to grow at a considerable rate, thereby stimulating the growth of the US fastener industry.
2. In addition to Taiwan and mainland China, the US fastener import market will be diversified. Emerging economies will enter the US fastener industry because buyers will be more inclined to find more stable suppliers besides traditional markets to save costs and shorten delivery time. The transportation company also complied with this trend and expanded the shipping routes of major ports.
3. The shipment of imported fasteners will be docked in the United States to be closer to end users. Over the past seven years, shipments from Asia have gradually shifted to the eastern ports of the Panama Canal, as companies can avoid reducing their extra transportation costs in southern California. They want to make full use of the expanded Panama Canal to transport goods from vessels in Southeast Asia and India to the west. Figure 6 shows the overall trade trend of fasteners in the United States over the past seven years.
4. Developed economic countries such as Europe and the United States will continue to import most of the fasteners and other products from China. However, manufacturers in these countries will focus on some unique products and take advantage of the rising logistics costs to better serve their customers.
In addition, the industry itself must also strengthen technological innovation and attach great importance to science and technology. For the vast number of manufacturing industries, science and technology are the only magic weapon to be invincible. In particular, the expansion of enterprises must be done in a way that can not be blind and random.