Tongue And Groove Face Flanges
The Tongue and Groove faces of this flanges must be matched. One flange face has a raised ring (Tongue) machined onto the flange face while the mating flange has a matching depression (Groove) machined into it's face.
Tongue-and-groove facings are standardized in both large and small types. They differ from male-and-female in that the inside diameters of the tongue-and-groove do not extend into the flange base, thus retaining the gasket on its inner and outer diameter. These are commonly found on pump covers and Valve Bonnets.
Tongue-and-groove joints also have an advantage in that they are self-aligning and act as a reservoir for the adhesive. The scarf joint keeps the axis of loading in line with the joint and does not require a major machining operation.
General flange faces such as the RTJ, TandG and the FandM shall never be bolted together. The reason for this is that the contact surfaces do not match and there is no gasket that has one type on one side and another type on the other side.
Tongue And Groove Face Flanges,Tongue & Groove Flange,Groove Flanges,Tongue And Groove Joint Flange Fuyuan Marine Accessories Co., Ltd , https://www.fymarineparts.com
Yuchai's power to build a new force, Yuchai Foundry Center was officially put into operation in March 2010, the total investment of 2 billion yuan, a total area of ​​1800 acres, has become Asia's largest diesel engine casting production base. Construction starts in 2008 with a construction period of 8 years, plans to build 6 complete casting lines, and will produce approximately 300,000 tons of light, medium, and heavy-duty diesel engine ash castings, 250,000 sets of aluminum alloy diesel engine castings, and large-scale diesel engine castings. With 30,000 sets, the annual output value will reach 3.7 billion yuan. The first production line of the foundry center was completed more than 200 days ahead of schedule and was put into operation before March 15, 2010. The construction area of ​​the production line has reached 36,000 square meters. The construction speed is fast, the cycle is short, the efficiency is high, and the technological level has reached the domestic first-class advanced level. Among them, the robot lower core process has become the world's first. Since the first production line has been put into production, the production efficiency has been steadily increasing. In June, it produced more than 10,000 cylinder block castings, 1.5896 million sets in July, and 1.6428 million sets in August, and the hourly production capacity was more than 30 sets from the beginning of production. Up to now, nearly 60 units have been upgraded. As of September 30, there have been cumulative production of 76.961 million cylinder block castings. The level of product quality has also been steadily increasing, and the overall scrap rate has been declining month by month, reaching the domestic leading level: In the first half of the year, the comprehensive scrap rate of castings was 3%, 1.9% in July, and 1.44% in August, much lower than the beginning of production in March. 3.347%. According to the current maximum hourly production capacity and normal production cycle, it has reached 220,000 sets of production capacity design targets, and the annual output casting weight reaches 45,000 tons. While maximizing the benefits of the first production line, the second production line of the foundry center was quickly launched and construction began on July 28. The planned construction area is approximately 46,600 square meters. It mainly produces cylinder head castings and plans to produce approximately 38,000 tons of cylinder head castings each year. It is expected that it can be put into use at the beginning of 2011. The third production line will also be put into trial production in December 2012.
Last year, Yuchai Technology Center ranked 27th among 575 enterprise technology centers nationwide, ranking first in the engine industry. This year, the innovation capacity building project of Yuchai Technology Center passed the national appraisal and acceptance, and its innovative R&D capability is in the leading position among domestic counterparts.
The Yuchai National 863 High-Tech Project “Commercial Vehicle Hybrid Powertrain Systemâ€, which has passed the scientific and technological achievements appraisal, is the first commercial vehicle hybrid powertrain system developed independently and put into batches using a single-axis parallel system in China. Leading domestic level. Since the hybrid system was put on the market in April of last year, it has been matched with a number of OEMs, and the total number has been put in nearly 200 units, and the mileage of bicycles has reached a maximum of nearly 100,000 kilometers. The system reliability has withstood the test of the market and the actual bus routes The average energy saving reaches 20%.
The quality heavy engine 6K engine built by Yuchai attracted the attention of the industry once it came out. This 13L displacement model is independently developed on the basis of a new generation of similar engine platforms of world-famous brands, with a maximum power of 520 horsepower, emissions reaching Euro 5 emission standards, and upgradeability to Euro 6, with the latest European mass production engine for 2012. The level of technology.
At the "Tenth China International Transport Technology and Equipment Exhibition" held in 2010, Yuchai's YC6L-50 State 5 diesel engine won the Best Parts Award.
Now, Yuchai has created the most abundant and complete product chain in China's diesel engine industry. The main products are used in vehicles, marine, construction machinery, agricultural machinery, power generation equipment, passenger cars and other diesel power 6 categories 22 series, micro-car, light, medium and heavy multi-cylinder diesel engines, power coverage 12 ~ 880 kilowatts is the preferred supporting power for major domestic commercial vehicles, construction machinery and agricultural machinery.
According to the development concept of “based on Guangxi, national distribution, and global planning,†Yuchai Group has established the “Twelfth Five-Year Plan†and “Building One-billion-Year Enterprise Group†goals as it strives to achieve its annual sales revenue of RMB 30 billion in 2010. .