PC production line equipment plays an important role in the production of PC factory components. The quality of the products depends to a large extent on the perfection of the equipment. The life, quality, precision and even the noise generated during operation are all caused by these. The accuracy of the basic components, the selection of materials and the corresponding high-quality processing properties are determined and will ultimately be reflected in the quality of the prefabricated components. The appearance of the equipment after painting can not directly distinguish the actual raw material selection and manufacturing process. Due to the variety of production and the different production process requirements, according to the industrial production practice, it should be considered from the following aspects:
1. Selection of raw materials : The axles are made of 45# steel forgings, which are roughed, tempered or quenched, finished, blue or galvanized, and other national standard profiles.
2. Machining accuracy : Controlling the equipment design and the selection and processing degree one by one. The production process requires precise processing, inspection and testing equipment for fundamental control. The PC equipment needs to pay special attention to the vibration table noise. According to the national requirements, the production workshop (continuous production for 8 hours) must not exceed 90 decibels.
3. Assembly accuracy : The processing precision determines the assembly precision. At the same time, the equipment manufacturer is required to have high-quality professional and technical workers to complete the workshop assembly of each equipment.
4. Inspection and inspection : The inspection and inspection of the equipment need to be completed at the factory before leaving the factory, instead of transporting the parts to the PC factory site, then assembling and then completing the inspection. There is no corresponding inspection and testing equipment at the construction site, and the quality is not detected. Uncontrollable is an approach that is not advocated.
5. Installation accuracy : The installation accuracy is determined by the on-site installation conditions. The owner needs to provide a perfect installation environment and conditions as much as possible. The on-site installation and construction requires professional and technical workers to carry out the standard operation, so as to ensure the smooth implementation of the project.
In the current development of the prefabricated construction industry, PC factory customers have always had the entangled point of quality and price in the equipment purchase. In terms of how to balance the two, and draw on the experience of several PC factories in China, there are the following suggestions:
1. Equipment configuration requirements
The configuration of the PC production line equipment can be high or low, mainly depending on the owner's requirements, but the basic principle points should also be retained in the configuration selection, and the quality cannot be neglected due to the price.
2. Time energy input ratio
Most of the customers have invested in PC factory inspections and process inspections, and even when the equipment is tendered, they have not yet visited the equipment manufacturing site. In terms of industrial equipment, PC production line equipment is not a supporting product. Referring to the mature configuration of conventional engineering machinery, the direct purchase after the price comparison, still need to return to the source of the equipment, from the equipment production capacity itself to carry out on-demand purchase.
There are many factors affecting the quality of equipment in the PC production line from the production process to the procurement process. From the selection of raw materials, the design parameters of the equipment (including initial design life, structure, detailed configuration, etc.), the processing technology experienced by the equipment (including the vehicle) , milling, planing, boring, grinding, drilling, etc.), welding process, heat treatment, sheet pretreatment, assembly process, painting process, etc., to the installation of equipment, etc., and the installation of equipment as the final stage, generally not Emphasis is placed on the poor installation foundation. In the manpower and time output, blind pursuit of the construction period will lead to deviations in the use of the equipment. From design, material selection, selection to installation and commissioning, it is a stage that cannot be ignored.
As summarized above, the choice of equipment is actually a link to investigate the production and technical strength of equipment manufacturers. From the factory production scale, raw material storage, technical personnel professional level, testing ability, high-precision processing equipment and large-scale equipment, mature and reliable installation team are the "connotation" of the final production line equipment; complete PC production line equipment automation Automatic flow control according to process tempo, remote control of control system, simulation monitoring of all equipment, reasonable scheduling, remote diagnosis, troubleshooting, intelligent management of equipment life cycle, interconnection with concrete mixing plant, realization of information production The integration of industrialization and informatization is a hard indicator for equipment purchase.
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