Box Guideway Machining Centers
Box guideway machining center also call hard rail machining center in China, it refers to a casting part where the guide rail and the bed are integrated, and then the guide rail is processed on the basis of the casting, which is a type of hard guide rail. The shape of the guide rail is cast on the bed, and then processed into a guide rail through quenching and grinding. The hard rail used in the hard rail machining center is generally a rectangular structure, commonly known as a rectangular guide rail or box guide rail. The Box way machining center machining center adopts sliding friction, which leads to a larger contact surface and high rigidity and strength. Therefore, the box guideway machining center is more suitable for heavy-duty cutting and is suitable for heavy-duty mold processing.
Advantages of box guideway Machining Centers: Box Guideway Machining Center,Small Cnc Machining Center,Cnc Machining Center Vertical,Cnc Vertical Machining Center Dongguan Liyang Intelligent Technology Co., Ltd , https://www.leyocncmachine.com
1. Able to withstand larger loads, suitable for rough machining machines with large cutting amounts and large feed rates.
2. Due to the large contact area of the guide rail, the machine tool operates more smoothly, making it suitable for factories with high requirements for machine tool vibration.
Disadvantages of box guideway machining centers:
1. Shorter service life. Under the same maintenance and usage conditions, the service life of box guideways is generally shorter than linear guide machining center, because box guideways operate with sliding friction, while linear guide operate with rolling friction, resulting in greater wear and tear.
2. The repair cost is too high. The maintenance of box guideway machining center is much more difficult and costly than linear guideway machining center. If there is insufficient scraping allowance, it may involve disassembling all the large parts of the machine tool, performing quenching and mechanical processing again, and even more importantly, recasting the large parts. The wire gauge only needs to replace the corresponding linear guide, which will not greatly affect the use of related large parts.
3. The running speed of machine is low, and box guideways machining center usually cannot withstand too fast running speed due to their movement mode and the excessive friction they bear, which contradicts the current machining concept to a certain extent. Especially many factory workers do not have the corresponding maintenance knowledge for machine tools. Many times, they only know how to use the machine tool, but largely neglect the maintenance of the machine tool. The maintenance of the machine tool track is of utmost importance. Once the lubrication of the track is insufficient, it can cause the track to burn or wear excessively, which is fatal to the accuracy of the machine tool.
Last year, China National Shipbuilding Industry Corporation (hereinafter referred to as China Shipbuilding Corporation) announced substantial progress in building a Chinese cruise ship.
On July 4th, China Shipbuilding Corporation, the largest shipbuilding company in China, and the Italian Fincantini Company officially signed the Shipbuilding Joint Venture Agreement in Shanghai, and will jointly establish a luxury cruise design and construction company in Hong Kong, China. The company is controlled by CSSC Cruises Technology Development Co., Ltd., which is owned by CSSC, and 40% owned by Fincatina, Italy. Shanghai Waigaoqiao Shipbuilding Co., Ltd. is responsible for the construction and delivery of luxury cruise ships.
In October last year, CSSC, Fincantini and the US cruise company Carnival signed a memorandum in Tianjin to set up a joint venture to build a luxury cruise ship in China, and subsequently signed a £2.6 billion “Luxury Cruise Ship Construction and Operation Project Cooperation Agreementâ€. "The international cruise joint venture company controlled by the Chinese side will be established. After the establishment of the company, it will cost 25 billion yuan to build 5 luxury cruise ships in CSSC.
Informed sources revealed to Caixin.com that the construction funds of five domestic luxury cruise ships will come from the cruise industry fund jointly established by Bank of China, Agricultural Bank, Industrial Bank, China Everbright Bank and China Construction Bank.
According to the data, the first domestic cruise ship is expected to be 135,000 tons, can accommodate 6,000 tourists and 2,000 to 3,000 crew members, with a total value of about 1 billion US dollars. The planned cruise ship will be designed and built by China itself, and the tonnage is 3 times that of the Titanic. The cruise brand name and maiden time have not yet been determined. China's first luxury cruise ship is expected to be completed within five years.
Waigaoqiao shipbuilding insiders revealed to Caixin.com that the shipyard has set up a luxury cruise project department. It is expected to start basic design and production design this year. Construction work will start in 2017. The first luxury cruise ship is expected to be completed and delivered in 2021, and domestic cruise ships. Chinese elements will be highlighted on the interior, such as rooms with Beijing Siheyuan and Shanghai Shikumen style.
According to reports, luxury cruise ships are the world's top ship products in the high-end marine equipment manufacturing industry. They are much more difficult to manufacture than aircraft carriers and large LNG carriers. They are the only high-tech ship products in China that have not yet been overcome. According to Dongfang.com, cruise manufacturing is a huge system project that integrates and intensifies modern industrialization and modern urbanization. It involves shipbuilding, electromechanical, construction, decoration, culture, and art. The design, construction, and classification of cruise ships are not used. In merchant ships and passenger ships, there is no supporting industry in China.
At present, the world's cruise ship design and construction and supporting industry chain are mainly concentrated in Europe, the world's three major cruise construction companies, Italy Fincantina Group, Germany's Meyer Shipyard and France Atlantic Shipyard together to undertake about 90% of the global orders, including Japan The Asian shipyards within the company have not yet independently designed and built cruise ships.
Previously, the cooperation between the Chinese company and the international cruise company was still in the way of purchasing international cruise company vessels or acquiring cruise ship brands to operate, and did not involve the construction of cruise ships. The CSSC joint venture to establish a cruise construction company is expected to bring the capacity of the Chinese cruise industry to build a cruise ship independently.
The Chinese cruise market started late, and the penetration rate in the European and American markets is still very low, but the industry expects huge growth potential. The "2030 China Shipping Development Outlook" released by Shanghai International Shipping Research Center predicts that by 2030, China is expected to surpass the United States to become the world's largest cruise tourism market.
CSSC Cruises Technology Development Co., Ltd., a subsidiary of CSSC, was established in May 2016 by Shanghai Waigaoqiao Shipbuilding Co., Ltd., together with Guangzhou Shipyard International Co., Ltd., China Ship and Ocean Engineering Design and Research Institute, and Shanghai Ship Research and Design Institute in Shanghai. Established, mainly engaged in luxury cruise design and related technical services. Waigaoqiao Shipbuilding Co., Ltd., responsible for the construction and delivery of domestic luxury cruise ships, will draw on the experience of the project management model to the management of the cruise production and construction.