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Bapa Nan Fei double-gate manufacturing process Introduction

Characteristics and difficulties of the double-Fei door manufacturing production has the following features and technical difficulties: 1. Because it is foreign projects, products used in the manufacture of technical standards used in all the world's existing common international technical standards, lack of information and professionals. 2. Door leaf span, the door structure is not only closed for the all-inclusive structure, the door top and bottom of the door also cylindrical arc, making difficult,[link widoczny dla zalogowanych], not easy to control welding distortion. 3. Gate long-term exposure to sea water. In addition to demanding external corrosion on the seal seat surface and the installation can not be the site of anti-corrosion, require the use of stainless steel or stainless steel sheet, as indicated in the upper reaches of Fei door panels and roof panels and doors under the Fei connection between the upper and lower section of the web etc., are all chrome-nickel stainless steel sheet (ICrl8Ni9Ti +16 Mn). Door leaf structure as a large area to use stainless steel or stainless steel clad plate, stainless steel thermal conductivity and thermal expansion coefficient difference compared with the larger carbon steel, is the leading welding deformation of the door leaf is another key technology to increase. 4. Fei door panel on the upper surface of the water throughout the letters, requiring flatness and straightness of not more than 3mm, such as the whole one does not have the machining conditions, the second is a direct impact on long cycle duration and the third is to waste a lot of stainless steel , resulting in cost increases. Technical measures taken to control the welding distortion, although difficult, but still can guarantee requirements. 5. Between the upper and lower sections under Fei is through the door bolt, the connection seat surface roughness requires no more than 0.5mm,[link widoczny dla zalogowanych], available floor large CNC boring and milling machine processing, but will directly affect the welding distortion to the connection seat surface processing accuracy. 3 or more technical process measures for the characteristics and difficulties of active research organizations, research programs, develop measures, and in the production process constantly working to improve and perfect 37 arts program. The main technical measures are: 1. Strengthen the standards for the management of organizational standards and translation hand to collect the relevant personnel in the familiar, digestion international standards, the combination of existing domestic standards conversion, so that play a guiding role in the production. 2. Advance by the factory welding lab welding of stainless steel clad plate welding process developed and conducted a number of welding process and welding procedure test set, the preparation of the welding process instructions, the welding of stainless steel clad plate groove, welding materials, welding welding interlayer driving range requirements are made clear. 3. Expect from the next general assembly, welding, machining and a series of processes have developed a special process specification and process control welding distortion measures, and revised according to actual production in a timely manner. Programs such as assembly and welding in the development of the order, the existence of two different methods, the first panel is four weeks, respectively, the first small fight with angle steel welding, structural adjustment and then assembled into a box; the second panel is four weeks, respectively angle only spot the first position, the whole assembly after welding. To this end we have adopted two programs will fight each test the feasibility of welding a comparison of the process, through the comprehensive comparison of results was to optimize the program. 4 -. On the assembly tooling platform used for testing, adjustment, consolidation, the platform is controlled at 1rm plane within the assembly to ensure the accuracy needs. 5. Select the correct datum reasonable assembly, such as Fei assembled on the door leaves,[link widoczny dla zalogowanych], the upper panel for the overall flatness of rhyme in the entire welding process to facilitate detection and control, and change the past, the upper panel as a base level of the conventional practice of assembling . 6. Arcs in the press on the sub-panel to cold forming, and then mold found on the model modification, and then take a long paragraph by paragraph, welding, long after the plane on the two long sides crossed on planing. Re-welding on the gate and take effective measures so that the upstream and downstream panel access panels flush. 7. Welding ttl ~ t appropriate choice of rhyme welding process specifications. Even asked by a welder from side to side using symmetry principles asked jump welding, strictly control the welding sequence. Overall reinforced gate. Li first welding seam, at the upper and lower two paragraphs, all set to be completed weld door a certain level the overall stiffness of the weld after welding, the welding process while strengthening the monitoring of the panel, and make records at any time adjustment. 4 Conclusion activities through a series of technical research and improvement in practice and continuous improvement. And in accordance with IS09 (XIO requirements for product quality control of the whole process, an effective solution and the control of the welding deformation of double-Fei door technical difficulties, the successful completion of the production tasks. The first set of gates by the Thai owners to plant acceptance. Well received and achieved a good reputation, property owners found good quality and fully affirmed the outside. and made after the acceptance of three sets of doors will not rhyme to plant himself,[link widoczny dla zalogowanych], and commissioned the sole agent of which party supervision. Thailand Bapa Nan ah works double-Fei water f successful production of the door,[link widoczny dla zalogowanych], I plant has achieved remarkable economic and social benefits, so I plant production capacity and a new level. 38

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