2 main with the same pneumatic micro-shock tamping modeling line change è‹Ž 2 column pneumatic micro-compression compaction line straight to its high degree of automation and praised by users. Its specific pressure is high, and its production efficiency is also high, but there are many mechanical failures. We paid some institutions to enter the hall and fled, and achieved better results. And successfully used the export of castings produced by a factory in the north of a factory in the north. The inner and outer quality requirements of the castings are selected in the sandbox of the pneumatic micro-shock compaction molding line of (1). 25025. The small upper joint box and the artificial core are designed to have a design productivity of 120 boxes. Parallel wiring is used, and the box section of the 1st section of the enterprise sand line is composed of a total of equipment, 2 sets of main engines and 9 sets of auxiliary machines.
The line is powered by compressed air and is controlled by the imported microcomputer. However, there is a certain connection between the good sections and the sand. This will not affect the actions of other parts due to a certain fault. It is also conducive to the coordination of the various lines of action wiring to summarize the experience of the previous lines and reference the relevant information, the following parts have been greatly improved, and achieved good results.
2 The main machine of the molding machine adopts the column air cushion micro-seismic molding machine. The main movements of the molding machine include the box-carrying sand compaction shock and the micro-shock returning mode. The compaction adopts the first low pressure and the compaction and impact method. In the case of low pressure, it is beneficial to improve the fluidity of the sand, so that the sand compactness of the sand is relatively uniform. From the perspective of the casting process, the pneumatic principle of the high-quality casting can be obtained 1=3 on the molding machine, using the moving pressure The head is sanded. In the past, the same type of line, the head, the movement only kind, degree, fast or slow, the moving speed is fast, the collision of the frame is too human, the moving speed is slow, the impact on the body is reduced, but the productivity of the whole line is reduced. It is. After comprehensive consideration, the indenter moving die needs to be set up to live, and the spring top core mechanism similar to the 479 gas-filled die box cannot be used. Therefore, a core-cylinder is provided on the core-core machine to ensure that the sand core remains in the movable mold 3 core. Process determination of the core box temperature sanding pressure sand shooting time crust time rocking times hardening time 4 problems and solutions in use 4.1 sand core shot is not full or firmness + enough to make the core through the sand core compaction The sand pressure is related to the core's exhausting ability. If there is a situation where the sand core is not full or the compactness is insufficient, the shell sand should be inspected first for the presence or absence of abnormal sand.
Whether the sand injection pressure is normal or not. If all of the above are normal, Bay 1 checks the exhaust condition of the part, and the exhaust gas is too smooth or the exhaust gas is too fast, which will cause the core of the shell to shrink and not enough. If the exhaust is not smooth, the exhaust plug or the exhaust vent should be added to add the exhaust effect; if the exhaust is too fast, the method of blocking welding should be adopted to reduce the exhaust volume and meet the process requirements.
4.2 The cause of the head blockage caused by the blockage of the head is mainly a bit of a foreign matter mixed in the shell core sand. The radiant heat on the core box during operation, the machine does not cause the agglomeration of the residual sand in the shot for a long time, so the method is also solved. Corresponding point 0 is set in the fine sand before the sand feeding device of the sand feeding device, the sieve prevents the agglomerated sand and the foreign matter from being sent to the sand bucket 3, the moving core is used by the core machine, and the time when the shooting head stays above the core box It is shorter, so as long as there is a distance between the sandblasting board and the core box, it can prevent the influence of radiant heat. 3 Before the end of each work, the shell core sand in the shot is shot without leaving any residual sand. I casting process equipment Design manual writing group. Casting process equipment design manual. Beijing Mechanical Engineering Press, 1993.
2 National Foundry Standardization Technical Committee. The latest casting standard application manual. Beijing Mechanical Industry Press, 1994.
The multi-person system is an effective management mode for the air-punching molding line. Dai Wulin Zhuo Xiaojie's domestic or imported gas-filled molding line has been used more and more, but some media and data 4 are not in the same state. People always, don’t worry about the internal gas production line, which has a lot of strong enthusiasm. The reason is mostly due to the poor reliability of the domestic gas line control components, unreasonable structural design and high failure rate. Low productivity rate and so on.
The quality of the equipment itself is an important factor affecting the normal operation of the molding line, but it is not a decisive factor; strengthening management, improving the quality of employees, and adopting scientific and rational management methods are also important means to ensure the good operation of the molding line.
Yangjiao Co., Ltd. foundry's domestic gas-filled molding line, model is double 458é‚™ design capability 50. The line was designed and manufactured by Jinan Foundry Forging Machinery Research Institute. It was officially put into operation on March 8, 1998 and has been in normal operation for nearly 3 years. Due to the implementation of the management model of Ren Duogang, the level of some imported gas lines; the productivity of Type 58 also exceeded the original design capacity. The line has set a record for the best level of single-shift production of less than 71 multi-cylinder diesel engine body castings 356. If the iron liquid is solved in the past, we are implementing the traditional customary fixed and fixed management mode in the workshop, lacking scientific management ideas, and the division of labor is fine. Maintenance operations and special types of work with fixed technical content are difficult to interchange with each other. For example, repairing fitter electricians and welders are all types of work when soldiers are employed for thousands of days; there are also some operations and special types of work, and the workload is small, but it cannot be set. This part of the staff has more idle time, which is in sharp contrast with the fast pace of line production operations. Therefore, under this management mode, the failure rate of the air-punching molding line is high, and the low operating rate becomes inevitable. Sometimes, after the equipment fails, the maintenance personnel are not at the scene, and all the personnel need to stop; wait; repair 1 to the site 1 can not be put into repair, 2 1 is the fault when the repairman is not on site, do not understand the cause and location of the fault.
Implementing multi-job management requires managers to change their minds first, and under the condition that the basic quality of personnel is relatively poor, it is more difficult to understand the quality of managing high-caliber personnel and effectively train talents to start management of multi-personal posts. Large, gas lined the device itself. Technical and management requirements are high, there is no ready-made technology in the workshop, and people and skilled operators recognize that there is no ready-made management method and experience to learn from. Therefore, first of all, we must train all kinds of operators, and train part-time technical and maintenance personnel from the operators; at the same time, promote the operation and maintenance of mechanical and electrical gasification, and cultivate a team of versatile and compound technicians.
Since the implementation of the multi-person system, significant synergies have been achieved.
0 minus efficiency. There are almost no full-time maintenance personnel in the gas-making line, and many operations and special types of workers and management personnel are both reducing the number of workers and left the workforce, alleviating the contradiction of the production arrangements for the unsuccessful replacement of the special types of workers.
The cost reduction and efficiency increase effect is remarkable. As the overall technical strength and quality have been improved, and the multi-functional operation and maintenance and management personnel are always at the production site, they are able to familiarize and timely solve the problems and contradictions in the field. The improvement of quality technology and equipment in the production process is endless. In the past three years, there have been nearly 70 major and small-scale technological innovation projects, including more than a dozen award-winning projects. The logistics and material consumption has been effectively managed and controlled.
The speed is fast and slow, which overcomes the collision of the body too much. In terms of electrical, the original relay control is changed to the buckle control, and each segment is provided with a fault display screen and an alarm device. When a part fails. It is possible to clearly identify the cause from the small screen 1 and save time for the elimination of the defects, which greatly increases the productivity.
In short, the line has been reformed to overcome the original ills and greatly increase the continuous operation time of the equipment.
The utility model discloses a Kitchen Shower head that is convenient to switch the water outlet mode, has a compact structure, and is easy to use, and a kitchen faucet using the kitchen shower head. , The shower head is provided with a water separator, and the water separator is provided with an annular flow channel and an inner flow channel respectively connected to the spray water outlet body and the V-shaped water outlet body, and the lower end of the outer wall of the water separator is upwardly circular A plurality of water inlet holes connected to the annular flow channel are provided, and a first sealing ring is provided on the lower side of the water inlet hole; the water outlet end of the shower body is connected with a converter, and the converter is provided with a communicating In the water diversion cavity at the water outlet end of the shower body, the lower end of the water diversion device is installed in the water diversion cavity and can move up and down, and the upper end of the inner wall of the water diversion cavity is provided with a convex ring matching the first sealing ring, so The bottom surface of the water diversion cavity is provided with a sealing gasket that can seal the inner flow channel.
Waterfall Shower Head,Overhead Shower Head,Push Button Hand Shower,Brushed Nickel Sink Faucet
Yuyao Zelin Sanitary Ware Co., Ltd , https://www.zelinsinkfaucet.com