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China National Heavy Duty Truck Group Qingdao Heavy Industry Co., Ltd. Qingzhou Specialized Structure Branch Plant has solidly promoted the “Second Venture†project, based on its actual situation, combined with the production process and quality of various products, in-depth analysis of production organization, process flow and everything There are deficiencies in every detail related to production. Through layered workshops, production teams, and other levels, they analyzed each level, combined with problems in production management, continuously improved product quality and reduced three costs.
First, improve the physical quality of the structural parts of mixer trucks and sanitation trucks, and the appearance of the weld seams is more than 90%. In the process of advancing the “second pioneering†project, they attached great importance to improving the physical quality of products, conducted comprehensive statistics and analysis on the top quality issues, and took measures to solve the problems. In response to several quality problems in the product of the mixer truck in 2011, an on-site meeting was organized in time to carry out on-site research and analysis with the technical, process and workshop production teams to summarize all the factors that may cause the above quality problems and take relevant measures. :
1. Organize the workshop to make the flange welding protection pressure plate to avoid splashing into the screw hole caused by the welding of the flange of the mixing tank body, resulting in the occurrence of bolt breakage caused by thread damage.
2. Organize the workshop to make the angle ruler of the stirring tank blade, which is used to assist the inspection of the blade angle during the welding operation and ensure that the welding angle of the tank blade meets the design requirements.
3, the use of tank spiral auxiliary ruler, in the tank blade welding auxiliary scribe and verify to ensure that the helix meets the design requirements. Through the implementation of the above measures, the current excellent rate of tank assembly has reached more than 90%, greatly reducing the economic losses caused by quality problems, and reducing the cost of external failure by 10%.
Second, in the "second startup" continue to reduce manufacturing costs. At present, the structural parts factory produces compression type garbage truck compartment assembly push plate cylinder holder, consisting of four components of the upper support plate, column left/right, and connecting plate, among which the currently required riveting welding process is performed on the right and left columns. After the study, they adjusted the process by blanking and bending. After the process is adjusted, the work efficiency of the riveting process can be increased by a factor of two. In addition, the surplus material can be used for secondary use, which improves the material utilization rate. The punching and cutting angle can improve the appearance quality of the assembly components. The above adjustment will save nearly 25,000 yuan in material costs each year.
The bottom plate of the garbage truck filler bottom plate assembly needs to process 12 diameter 20mm round holes. The current processing technology is to turn the riveting welding process after cutting, and the upper rocker drill is used for welding after drilling, and the processing time of two people is about one. In 20 minutes, because the efficiency of the punch press is much higher than that of the drill press, the adjustment of drilling of the part is adjusted to punching, and the same two-person operation increases the efficiency by more than double.
China National Heavy Duty Trucks Qingdao Heavy Industry also pays attention to strengthening the basic management work, through the improvement of EQUIPMENT maintenance system and norms, the strict examination and approval procedures for tools and ACCESSORIES and the use of the system to control inventory, repair tools and accessories on the welding machine after the use of the first maintenance and replacement It also adopts various measures such as trade-in replacement to control three expenses. In 2011, the fuel consumption of branch plants was reduced by 19% from the same period of last year.
There are generic fenders for bicycles that can be fitted to most bicycle frames. These catch and redirect road spray thrown up by the tires, allowing the rider to remain clean. They are increasingly common on bicycles in the more car dependent English-speaking countries, as bikes in these countries tended to be SPORTS -oriented, with minimal clearance between tires and frame tubes for fenders, or were only ridden in clement conditions, although there are a few fenders that are designed to be attached to the Seat Post. The trend towards urban biking which has doubled in the past decade, lead to production, import and use boom in utility bikes. European utility bicycles, traditional roadsters used in developing countries, serious touring bicycles, and beach cruisers are nearly always fitted with fenders, universally known in British English as mudguards. They are also fitted to motorcycles.
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