Since 2013, the cold chain terminal demand has begun to show signs of explosion. Tmall, JD.com and Suning.com and other front-line e-commerce merchants entered the fresh food market in an all-round way, driving the rapid rise of cold chain delivery in China; Yurun, Lenovo and other industry giants have also begun to accelerate the deployment of cold storage construction and cold chain distribution. Air-conditioning refrigeration market experts pointed out that the “ecommerce + cold chain delivery†cold chain model will start the secondary growth of the home retail market, the construction of small and medium-sized cold storage blowout soon. As the geometric growth of home terminal demand increases, the compound annual growth rate of cold chain home delivery in 2013-2015 is expected to reach 80%-120%, bringing the market size of cold storage and refrigerated trucks to over RMB 36 billion.
Tmall recently announced the trial of fresh cold chain logistics, the first phase of the "fruit fresh" to provide supporting cold chain services, distribution coverage of the northern city of Guangzhou, Shenzhen and Shenzhen, Wuhan, 26 online shopping hot cities. At present, Tmall adopts C2B pre-sale orders, plus a cold chain distribution model to shorten the supply chain and reduce the time for fresh fruit from the field to the table.
In addition to Tmall, Jingdong, No. 1 store, Suning Tesco, SF Express and other front-line e-commerce companies entering the fresh produce market, Taobao expects the growth rate of fresh food online shopping in 2013 to exceed 300%. According to statistics, during 2012-2025, the demand for cold chain foods in China will increase from 200 million tons to 450 million tons, with a compound annual growth rate of 18.8%, of which the growth rate will be 30.8% in 2012-2015, and 15.4% in 2015-2025. . Air-conditioning refrigeration market experts said that the average gross profit of fresh foods is about 40%, and the user's repeated purchase rate is high. It is very likely that the next three to five years will be the next hot commodity category.
According to the reporter's understanding, at present, cold-chain logistics companies generally operate B2B business and carry out logistics distribution between suppliers and sales outlets. Customers are a limited number of stores. Cold chain home delivery is an upgrade to the cold chain end coverage. B2C model is usually adopted, and the distribution target is a large-scale online shopping population with geometric growth. Taking JD.com as an example, the company stated that it will expedite the expansion of the fresh product market. It is expected that it will first launch cold chain product sales in Beijing before the end of 2013; while Jingdong's cold chain delivery will cooperate with the express line to adopt the B2B+B2C two-stage cold. The chain delivery model automatically matches the buyer's needs with the suppliers.
The acceleration of the layout of the national wholesale market network by food processing companies will also enable the rapid growth of the supporting cold-chain logistics industry. It is expected that the corresponding equipment investment will reach 46 billion yuan in 2015, and it is expected to reach 100 billion yuan by 2025. Among them, the industrial barriers of large and medium-sized cold storages in the wholesale market are high-end design resources and the level of ammonia refrigeration unit development. Breakthroughs are difficult. The large cold shares with the core competitiveness of the cold storage industry and the Yantai ice-making wheel are expected to usher in an order explosion period.
At present, the market concentration of small and medium sized cold storage required for cold chain delivery in China is relatively low, and the technical threshold for medium and small sized refrigeration compressors is higher. Screw and scroll compressors have technological advantages, and the trend to replace the piston machine is more obvious. The future screw machine Leading companies such as Han Zhong Precision Machinery Co., Ltd. and Sanhe Compressor Co., Ltd., which share shares, will benefit from the listed companies. As for the refrigerated truck market, CIMC Cold Chain Investment Co., Ltd. is the industry leader in the manufacturing of refrigerated trucks. In 2013, the main project cold box “Dream Factory†of Zhongji Cold Chain High-tech Industrial Park in Binhai New Area, Jiaozhou was also Built during the year, it will benefit from the rapid development of the cold chain industry.
Plastic Injection Molded Connector Accessories
Mechanical properties of injection connector fittings as far as connection functions are concerned, insertion and extraction forces are important mechanical properties. Plug force is divided into insert force and pull out force (pull out force is also called separation force), the requirement of both is different. In the relevant standards, there are provisions for maximum insertion force and minimum separation force, which indicate that, from the point of view of use, the insertion force should be small (hence the structure of LIF with low insertion force and ZIF without insertion force), and if the separation force is too small, it will affect the reliability of contact.
Another important mechanical property is the mechanical life of the connector. Mechanical life is actually a kind of durability index, which is called mechanical operation in GB5095. It is based on a cycle of one insert and one pull, and whether the connector can normally complete its connection function (such as contact resistance) after the specified plug cycle. The plug force and mechanical life of the connector are related to the plating quality (sliding friction coefficient) of the contact part of the contactor structure (positive pressure size) and the dimensional accuracy (alignment) of the contactor.
Plastic Injection Molded Connector Accessories,Injection Molded Connector Accessories,Furniture Connector Bolts,Joint Connector Nuts,Joint Connector
Timeplex Industrial Limited , https://www.timeplexhks.com