In March, the National Building Materials Index (BHI) was 96.41, up 20.03 points month-on-month and up 1.93 points year-on-year. Sales volume of building materials home stores nationwide in March was 78.86 billion yuan, up 76.31% month-on-month and 7.81% year-on-year. In the first quarter of 2018, the cumulative sales amounted to 191.73 billion yuan, a year-on-year increase of 14.38%.
The national building materials boom index BHI was issued jointly by the Ministry of Commerce's Department of Circulation Industry Development and the China Building Materials Circulation Association.
China National Building Materials Circulation Association’s Industry Research Department interpreted the BHI data in this issue as follows: In March, the national building materials home market ushered in the traditional “golden period†of household consumption, and was also the first sales season in 2018. This month, BHI rebounded sharply. Sales volume of building materials home stores above designated size rose by 76.31% month-on-month. Specific analysis is as follows:
First of all, from the perspective of the national real estate market, with the elimination of the factors affecting the Spring Festival and the deepening of the control policies, the demand for just-arrived and improved housing that has been long-standing in March began to gradually come out of wait-and-see. This month, the national property market has picked up, and some cities have been traded. The volume rose.
According to data from the China Index Institute, the area of ​​transactions in major cities monitored in March 2018 rose by 49.57% month-on-month, and the number of transactions in first-tier cities increased significantly.
Driven by the real estate market, especially at the beginning of March of this year, it coincides with the traditional festival Lantern Festival. Each of the big shopping malls has been preparing for the decoration season (from the BHI sub-index "employment index" rose 12.66 points higher than the previous month). Building materials home market ushered in the "Spring Comes Early" market, this month BHI chain, year-on-year increase, and led the first quarter of the national building materials sales above the scale of building sales also rose 14.38% year-on-year.
Secondly, from the BHI sub-index, this month's “personality index†ranked first in the chain and the year-on-year increase. The sentiment in the stores has returned. This is reflected in the current wave of consumer upgrades and the results of the transformation and upgrading of the national building materials home store. It is very representative.
Now 80 and 90 have gradually become the backbone of the consumer market. They have a very high level of awareness and acceptance of the Internet, and they also have very high standards for consumer experience and service quality. Consumer-driven brands have transformed supermarkets into smart stores. Enhanced experience sales and scene sales transformation and upgrading, and this is the most intuitive embodiment of the popularity of the store.
The China Manufacturing Purchasing Managers' Index (PMI) for the month of March released by the National Bureau of Statistics and the China Federation of Logistics and Purchasing was 51.5%, which was 1.2 percentage points higher than last month and rose to the first quarter high, indicating that China’s economy continues to maintain stability. Progress in the stable, steady, and positive development, and the impact of the macroeconomic environment, the nation's building materials and home furnishing market is expected to improve in the future.
In the first quarter of 2018, the leading companies in the industry accelerated the pace of M&A integration and transformation and upgrade. Industry insiders stated that the next stage of development of the national building materials home market will focus on “developing smart homes, building smart stores, leading new demands, and promoting consumption upgradesâ€. It is suggested that enterprises should not only grasp the traditional “Jin San Yin Dian†market opportunities but also rationally face the current fierce market competition environment under the current conditions of new data, new technologies, and new models.
Rotary Rings are a type of rotating seal widely used in various rotating equipment, such as rotary joints, rotary couplings, rotary connectors, etc. Its main function is to prevent liquid or gas leakage and maintain the normal operation of the equipment. In different applications, the material, structure, sealing method, size, etc. of Rotary Rings vary to adapt to different working conditions.
The materials of Rotary Rings are mainly divided into two categories: metallic and non-metallic.
Metal materials mainly include stainless steel, steel, copper, aluminum, etc., which have characteristics of high strength, corrosion resistance, wear resistance, and are suitable for rotary seals in harsh environments such as high temperature, high pressure, and high-speed.
Non metallic materials mainly include ceramics, silicon carbide, graphite, etc., which have characteristics such as high hardness, high wear resistance, and low friction coefficient. They are suitable for rotary seals under conditions such as low temperature, low pressure, and high speed.
The structure of Rotary Rings is mainly divided into three types: unidirectional rotation, bidirectional rotation, and rotational stationary.
1. Unidirectional rotating structure
The Rotary Rings with a unidirectional rotation structure can only rotate in one direction and are suitable for devices with only unidirectional rotation.
The Rotary Rings with a bidirectional rotation structure can rotate in two directions, suitable for devices that require bidirectional rotation.
The Rotary Rings with a rotating stationary structure are composed of a rotating ring and a stationary ring. The rotating ring contacts the stationary ring during rotation to achieve sealing, suitable for equipment that requires a rotating stationary seal.
The sealing methods of Rotary Rings are mainly divided into mechanical sealing and liquid sealing.
Mechanical sealing is achieved through the contact surface between the rotating ring and the stationary ring, which has the characteristics of high reliability, long service life, and simple maintenance. It is suitable for rotary sealing in harsh environments such as high speed, high temperature, and high pressure.
Liquid sealing is achieved by injecting liquid between the rotating ring and the stationary ring, which has the characteristics of good sealing performance, low friction coefficient, and preventing dry friction. It is suitable for rotary sealing under low speed, low temperature, low pressure, and other conditions.
The size of Rotary Rings is mainly determined by the equipment requirements, including inner diameter, outer diameter, thickness, shaft diameter, etc.
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DG Zhongxingshun Sealing Products Factory , https://www.zxs-seal.com