材料的性能是決定電梯門套是否容易變形的基礎因素。在選擇材料時，要充分考慮其物理特性和環境適應性。有天然石材、人造石、金屬材料、木制材料

　　The performance of materials is the fundamental factor determining whether elevator door frames are easily deformed. When selecting materials, full consideration should be given to their physical properties and environmental adaptability. There are natural stone, artificial stone, metal materials, and wooden materials available

　　安裝工藝規范

　　Installation process specifications

　　規范、專業的安裝工藝是避免電梯門套變形的關鍵環節，任何一個步驟的失誤都可能埋下變形隱患。

　　A standardized and professional installation process is a key step in avoiding deformation of elevator door frames, and any mistake in any step may bury potential deformation hazards.

　　精準測量：安裝前，要對電梯門洞的尺寸進行多次精確測量，確保門套尺寸與門洞匹配。若尺寸誤差較大，強行安裝會使門套產生內部應力，后期極易變形。測量時，需分別測量門洞的高度、寬度和對角線長度，保證誤差控制在允許范圍內。

　　Accurate measurement: Before installation, the size of the elevator door opening should be accurately measured multiple times to ensure that the door frame size matches the door opening. If the size error is large, forced installation will cause internal stress in the door frame, which is prone to deformation in the later stage. When measuring, it is necessary to measure the height, width, and diagonal length of the door opening separately to ensure that the error is controlled within the allowable range.

　　穩固基層處理：電梯門洞的基層墻面要平整、牢固。若基層不平整，安裝門套時會導致受力不均，引發變形。對于不平整的墻面，需先用水泥砂漿進行找平處理，待基層干燥、牢固后，再進行門套安裝。同時，若基層墻體為空心磚或輕質磚等非承重墻體，應采取加固措施，如加裝龍骨或使用專用的墻體加固材料，增強基層的承重能力。

　　Stable base treatment: The base wall of the elevator door opening should be flat and firm. If the base is uneven, installing door frames can cause uneven stress and deformation. For uneven walls, cement mortar should be used for leveling treatment first. After the base layer is dry and firm, door frames can be installed. At the same time, if the base wall is a non load bearing wall such as hollow bricks or lightweight bricks, reinforcement measures should be taken, such as installing keels or using specialized wall reinforcement materials, to enhance the load-bearing capacity of the base.

　　正確固定方式：根據門套材料的不同，選擇合適的固定方式。對于石材門套，常用的固定方法是干掛法或粘貼法。干掛法通過金屬掛件將石材與基層墻面連接，可有效避免因粘貼材料收縮導致的變形；粘貼法需使用高強度、耐候性好的粘結劑，確保石材與墻面緊密結合。木質門套一般采用膨脹螺絲或射釘固定在基層木龍骨上，固定點要分布均勻，避免局部受力過大。金屬門套則可通過焊接或螺絲固定的方式安裝，但要注意焊接時的溫度控制，防止因高溫導致金屬變形。

　　Correct fixing method: Choose the appropriate fixing method according to the different materials of the door frame. For stone door frames, the commonly used fixing methods are dry hanging or pasting. The dry hanging method connects the stone with the base wall surface through metal pendants, which can effectively avoid deformation caused by shrinkage of the adhesive material; The pasting method requires the use of high-strength and weather resistant adhesives to ensure a tight bond between the stone and the wall. Wooden door frames are generally fixed to the base wooden keel with expansion screws or nails, and the fixing points should be evenly distributed to avoid excessive local stress. Metal door frames can be installed by welding or fixing with screws, but attention should be paid to temperature control during welding to prevent metal deformation caused by high temperatures.

　　預留伸縮空間：由于材料存在熱脹冷縮的特性，安裝時要預留伸縮縫。伸縮縫的寬度一般根據材料和使用環境確定，通常在 3 - 5 毫米之間。伸縮縫內填充彈性密封材料，如硅酮密封膠，既能保證門套的伸縮自由，又能起到防水、防塵的作用。

　　Reserved expansion space: Due to the thermal expansion and contraction characteristics of the material, expansion joints should be reserved during installation. The width of expansion joints is generally determined based on the material and usage environment, usually between 3-5 millimeters. Filling the expansion joint with elastic sealing material, such as silicone sealant, can ensure the free expansion and contraction of the door frame, while also providing waterproof and dustproof functions.

　　加強日常維護:即使前期材料選擇和安裝工作做得再好，如果后期使用維護不當，電梯門套仍可能出現變形問題。合理使用：要引導乘客文明使用電梯，避免對門套進行撞擊、踢打等暴力行為。在搬運大件物品時，應采取保護措施，防止物品與門套發生碰撞;定期檢查：定期對電梯門套進行檢查，查看門套是否有裂縫、變形、松動等情況;清潔保養：保持電梯門套的清潔，定期進行擦拭。

　　Strengthen daily maintenance: Even if the material selection and installation work in the early stage is done well, if the later use and maintenance are not done properly, the elevator door frame may still have deformation problems. Reasonable use: It is necessary to guide passengers to use the elevator in a civilized manner and avoid violent behaviors such as hitting, kicking, and hitting the door frame. When transporting large items, protective measures should be taken to prevent collisions between the items and the door frame; Regular inspection: Regularly inspect the elevator door frame to check for cracks, deformations, looseness, and other issues; Cleaning and maintenance: Keep the elevator door frame clean and regularly wipe it.

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