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膜结构工程材料是怎么加工制作的?
来源:http://www.sdcscp.com/ 发布时间:2022-02-08
膜结构工程的加工制造膜结构工程的首要加工流程包含:进料、开料、查验、组装焊接、除锈、编号包装出厂。其间注意事项有:资料一定要有原料合格证书。依据规划人员所计算的每种杆件的下料长度、杆件标准进行分类堆积,以便于下一步施工。依据膜管的相贯尺度,思考壁厚和坡口的影响,运用主动切开机主动切开相贯线。在焊接进程中,为了尽量削减节点处应力会集的不良影响,支管与主管的衔接焊缝应全周接连焊接并滑润过渡,若主管呈现对接焊缝时,营口应刨坡口以保证焊缝焊透。由质检人员对焊缝进行超声波探伤查验,若发现有不合格的焊缝,应作记号,并及时通知焊工进行返工。主桁架与次桁架要进行预拼,构成一个单元组,而且编号。对构件外表进行干喷砂除锈处理,刷二遍油性防锈底漆,再涂外表面漆。
Processing and manufacturing of membrane structure engineering the primary processing process of membrane structure engineering includes: feeding, cutting, inspection, assembly and welding, rust removal, numbering, packaging and delivery. The precautions include: the materials must have the raw material certificate. Classify and stack according to the blanking length and rod standard of each kind of rod calculated by the planner, so as to facilitate the next construction. According to the intersecting scale of membrane pipe, consider the influence of wall thickness and groove, and use active cutting machine to actively cut the intersecting line. In the welding process, in order to minimize the adverse effect of stress concentration at the node, the connecting weld between the branch pipe and the main pipe shall be welded and smoothed throughout the whole week. If the main pipe presents a butt weld, Yingkou shall plan a groove to ensure the weld penetration. The quality inspector shall carry out ultrasonic flaw detection on the welds. If unqualified welds are found, they shall be marked and the welder shall be notified to rework in time. The main truss and secondary truss shall be pre assembled to form a unit group and numbered. Dry sand blasting and derusting treatment shall be carried out on the surface of the component, and the oily antirust primer shall be applied twice, and then the external surface paint shall be applied.
膜结构工程的加工制造膜材的首要加工流程包含:进料、查验膜材、膜片下料、编号、膜片编排放样、膜片初粘、驳接、包装。因为膜材的裁剪、包装进程都较为复杂,各种角度改变较多,且加工精度请求非常高,所以在制造进程中要加强质量管理,保证制造精度。
Processing and manufacturing of membrane structure engineering the primary processing process of membrane materials includes: feeding, inspection of membrane materials, blanking of membrane, numbering, layout and setting out of membrane, initial adhesion, connection and packaging of membrane. Because the cutting and packaging processes of film materials are more complex, various angles change more, and the processing accuracy requirements are very high, quality management should be strengthened in the manufacturing process to ensure the manufacturing accuracy.
膜材经查验后要运进已除尘的清洁车间。在下料区、编排放样区、驳接区及三个区的衔接处铺上柔质的板胶,防止膜片直接触摸地上,防止磨损或者弄脏膜材。进入车间的人员一定要穿洁净的衣服,换上车间专用的柔软拖鞋或只穿袜子。
The membrane materials shall be transported to the dedusted cleaning workshop after inspection. Lay soft glue on the blanking area, layout and setting out area, connection area and the junction of the three areas to prevent the diaphragm from directly touching the ground and from wearing or soiling the membrane material. Personnel entering the workshop must wear clean clothes, change into special soft slippers or only socks.
抽样取20组膜片和背贴条样品,采用60mm宽的驳接刀,断定4组不一样的驳接温度、电流、压刀时刻,驳接好后进行双向拉断实验,获取好的受力和外观的驳接数据,填好断定的数据贴在驳接机上进行驳接。热熔合计划应依据排水方向和膜片衔接节点断定。在正式热合加工前,要进行焊接实验,保证焊接处强度不低于母材强度。高频热合机是在高频电场的效果下对膜材高分子化合物高频振动发生分子间的剧烈运动发生的热量使其粘合。
Take 20 groups of diaphragm and back adhesive strip samples, use 60mm wide connecting knife to determine 4 groups of different connecting temperature, current and knife pressing time. After connecting, conduct two-way breaking experiment to obtain good stress and appearance connection data, fill in the determined data and paste it on the connecting machine for connection. The heat fusion plan shall be determined according to the drainage direction and diaphragm connection node. Before the formal heat sealing processing, the welding test shall be carried out to ensure that the strength of the welded joint is not lower than that of the base metal. The high-frequency heat sealing machine is to bond the high-frequency vibration of membrane polymer compounds under the effect of high-frequency electric field and the heat generated by violent movement between molecules.
膜片下料按次序要经三道程序:读取裁剪规划的坐标,取点;复核坐标,划下料线;复检坐标,落刀下料。然后贴上编号标签,抬到放样区。因为索膜结构工程通常均为空间曲面,裁剪即是用平面膜材表示空间曲面。这种用平面膜材拟合空间曲面的办法必定存在差错,所以裁剪人员在膜材裁剪加工进程中参加一些补救措施是适当必要的。对已裁剪的膜片要别离进行尺度复测和编号,并具体纪录实测偏差值。裁剪工作进程中应尽量防止膜体折叠和曲折,避免膜体发生曲折和折叠损害而使膜面褶皱,影响修建漂亮。
The blanking of diaphragm shall go through three procedures in order: reading the coordinates of cutting planning and taking points; Recheck the coordinates and draw the blanking line; Recheck the coordinates and cut the knife and material. Then attach the number label and lift it to the setting out area. Because cable membrane structures are usually spatial surfaces, cutting is the use of flat membrane materials to represent spatial surfaces. There must be some error in the way of fitting the space curved surface with the flat membrane material. Therefore, it is necessary for the tailor to take some remedial measures in the process of cutting the film. Measure and number the cut diaphragm separately, and record the measured deviation value. During the cutting process, the membrane body shall be prevented from folding and bending as much as possible, and the membrane surface shall be folded due to the bending and folding damage of the membrane body, which will affect the beauty of the construction.
在放样区,对已完结下料的膜单元的一切膜片进行放样,核对无误后划骑缝线。擦洗驳接缝的膜和背贴条时要用柔软的棉质布。上驳接机时,背贴条设在膜的下底面,膜片与驳接刀对中后,压平压稳膜片,使膜片在高频驳接进程中不发生移动。超重的膜单元,驳接时再细分,驳接缝用小型起重车搬移膜块,折叠包装。
In the setting out area, set out all diaphragms of the finished blanking membrane unit, and draw the riding suture after checking. Soft cotton cloth shall be used when scrubbing the membrane and back adhesive strip of the barge joint. When the lighter is connected to the machine, the back strip is placed on the bottom surface of the membrane, and the diaphragm is pressed to stabilize the diaphragm after the middle of the membrane is connected with the barge knife, so that the diaphragm does not move in the high frequency barge connection process. The overweight membrane units shall be subdivided during connection, and the membrane blocks shall be moved by small crane for folding and packaging.
在包装前,应依据膜体特性、施工计划等断定完善的包装计划。如聚四氟乙烯为涂层的是玻璃纤维为底层的膜资料能够以卷的方法包装,其间卷芯直径不得小于100mm;对于无法卷成筒的膜体能够在膜体内衬填软质填充物,然后折叠包装。包装完结后,在膜体外包装上符号包装内容、运用部位及膜体折叠与打开方向。
Before packaging, the perfect packaging plan shall be determined according to the film characteristics and construction plan. If Teflon is coated with glass fiber as the bottom layer, the film data can be packaged in rolls, and the diameter of the roll core shall not be less than 100mm; For the film body that cannot be rolled into a barrel, the film body can be lined with soft filler, and then folded and packaged. After packaging, mark the packaging content, application position and folding and opening direction of the membrane on the external packaging of the membrane.
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