一、電梯門套：電梯的 “臉面” 和 “防護盾”

　　1、 Elevator door frame: the "face" and "protective shield" of the elevator

　　想象一下，電梯門就像家里的大門，門套就是門框 —— 既得好看，又得能扛住每天上百次的開關碰撞。合格的電梯門套得像醫院的無菌門一樣嚴絲合縫，又得像銀行金庫門一樣結實耐用。制作標準里藏著哪些讓門套 “顏值與實力并存” 的秘密？

　　Imagine that the elevator door is like the main entrance of a home, with the door frame being the door frame - it has to look good and withstand hundreds of switch collisions every day. A qualified elevator door frame should fit tightly like a sterile hospital door, and be as sturdy and durable as a bank vault door. What are the secrets hidden in the production standards that allow door frames to have both appearance and strength?

　　二、選材篇：門套 “骨架” 決定壽命

　　2、 Material selection article: The "skeleton" of the door frame determines its lifespan

　　1. 不銹鋼：電梯門套的 “鋼鐵戰士”

　　1. Stainless steel: the "steel warrior" of elevator door frames

　　厚度標準：至少用 1.2mm 厚的 304 不銹鋼，像硬幣厚度的 2 倍，用手按不會凹進去；

　　Thickness standard: Use at least 1.2mm thick 304 stainless steel, which is twice the thickness of a coin, and will not sink in when pressed by hand;

　　防銹測試：滴一滴鹽水在表面，24 小時后擦干凈，合格的不銹鋼不會出現銹點（就像海邊的欄桿不生銹）。

　　Rust prevention test: Drop a drop of salt water on the surface and wipe it clean after 24 hours. Qualified stainless steel will not have rust spots (just like the railing on the beach does not rust).

　　2. 石材：高端電梯的 “大理石外衣”

　　2. Stone: The "marble coat" of high-end elevators

　　材質要求：必須選花崗巖（如芝麻黑），硬度比瓷磚高 3 倍，用鑰匙劃不會留痕；

　　Material requirements: Granite (such as sesame black) must be selected, with a hardness three times higher than ceramic tiles, and will not leave any marks when scratched with a key;

　　厚度底線：地面以上門套石材厚度≥20mm，地坎處要≥30mm，防止被行李箱撞裂。

　　Thickness bottom line: The stone thickness of the door frame above the ground should be ≥ 20mm, and at the sill, it should be ≥ 30mm to prevent it from being cracked by luggage.

　　3. 木質門套：住宅電梯的 “溫柔選擇”

　　3. Wooden door frame: the "gentle choice" for residential elevators

　　木材種類：優選櫸木或胡桃木，密度高像硬木家具，用指甲掐不會留印；

　　Wood type: preferably beech or walnut, with a high density similar to hardwood furniture, will not leave marks when pinched with nails;

　　防潮處理：木材必須泡過防水劑，像給木頭穿雨衣，泡水 24 小時膨脹率≤1%。

　　Moisture proof treatment: Wood must be soaked in a waterproof agent, such as wearing a raincoat on wood, and the expansion rate after soaking in water for 24 hours should be ≤ 1%.

　　三、尺寸篇：差 1 毫米就可能 “卡門”

　　3、 Size article: A difference of 1 millimeter could lead to 'Carmen'

　　1. 門套垂直度：比門框還嚴格的 “身材管理”

　　1. Verticality of door frame: stricter "body management" than door frame

　　標準要求：每米垂直度誤差≤1mm，用靠尺測量時，縫隙塞不進 A4 紙（類似貼瓷磚不能歪）；

　　Standard requirement: The verticality error per meter is ≤ 1mm. When measuring with a ruler, the gap cannot be filled with A4 paper (similar to tiling, it cannot be tilted);

　　后果警示：某小區電梯門套歪了 3mm，導致電梯門開關時 “咯噔” 響，修了半個月。

　　Consequence warning: The elevator door frame in a certain residential area was misaligned by 3mm, causing a "clunking" sound when the elevator door was opened and closed. It was repaired for half a month.

　　2. 對角線誤差：像量正方形一樣精準

　　2. Diagonal error: as precise as a square

　　測量方法：用卷尺量門套對角線，兩邊長度差≤2mm，否則門會關不嚴（類似家里衣柜門歪了關不上）；

　　Measurement method: Use a tape measure to measure the diagonal of the door frame, with a length difference of ≤ 2mm on both sides, otherwise the door will not close tightly (similar to a crooked wardrobe door at home that cannot be closed);

　　施工技巧：安裝時用激光水平儀打線，誤差比頭發絲還細（0.5mm 以內）。

　　Construction technique: Use a laser level to mark the line during installation, with an error smaller than a hair thread (within 0.5mm).

　　3. 地坎間隙：防止夾鞋的 “安全距離”

　　3. Gap between sills: a "safe distance" to prevent shoe pinching

　　標準規定：門套地坎與電梯門之間縫隙≤4mm，能塞進鉛筆但塞不進手指（避免高跟鞋卡住）；

　　Standard requirement: The gap between the door sill and the elevator door should be ≤ 4mm, and a pencil can be inserted but not fingers (to avoid high heels getting stuck);

　　某商場案例：縫隙太大夾壞過女士涼鞋，整改后用 4mm 厚的塞尺檢查，確保萬無一失。

　　A certain shopping mall case: The gap was too large and damaged women's sandals. After rectification, a 4mm thick feeler gauge was used for inspection to ensure that everything was foolproof.

　　四、安裝篇：三步裝出 “穩如泰山” 的門套

　　4、 Installation: Three step installation of door jamb "as stable as Mount Tai"

　　1. 基層處理：給門套 “打地基”

　　1. Grassroots treatment: lay the foundation for the door frame

　　墻面要求：用水泥砂漿找平，平整度誤差≤3mm，像鋪地板前要找平地面；

　　Wall requirements: Use cement mortar for leveling, with a flatness error of ≤ 3mm. Before laying the floor, the ground should be leveled;

　　固定方式：用膨脹螺栓固定基層鋼架，間距≤30cm，每個螺栓能扛 50 公斤拉力（相當于吊住一袋水泥）。

　　Fixing method: Use expansion bolts to fix the base steel frame with a spacing of ≤ 30cm. Each bolt can withstand a tensile force of 50 kilograms (equivalent to hanging a bag of cement).

　　2. 面板安裝：像拼樂高一樣精準

　　2. Panel installation: as precise as assembling Lego bricks

　　不銹鋼門套：板材之間用折邊扣合，縫隙≤0.5mm，用手摸感覺不到臺階（類似手機邊框的無縫銜接）；

　　Stainless steel door frame: The plates are fastened with folded edges, with a gap of ≤ 0.5mm, and the steps cannot be felt by hand (similar to the seamless connection of a phone frame);

　　石材門套：板塊之間用 AB 膠 + 不銹鋼掛件雙重固定，抗震測試時，8 級地震模擬下不會脫落。

　　Stone door frame: The panels are double fixed with AB glue and stainless steel hangers, and will not fall off during seismic testing under a simulated earthquake of magnitude 8.

　　3. 密封處理：給門套 “穿雨衣”

　　3. Sealing treatment: put a raincoat on the door frame

　　縫隙填充：用中性硅酮密封膠填縫，顏色要和門套一致，擠膠時要像拉面條一樣均勻；

　　Gap filling: fill the gap with neutral silicone sealant, the color should be consistent with the door pocket, and the extrusion should be as uniform as the Lamian Noodles strip;

　　防水測試：往縫里噴水 5 分鐘，背面不能滲水（類似衛生間防水測試）。

　　Waterproof test: Spray water into the seam for 5 minutes, and there should be no water seepage on the back (similar to a bathroom waterproof test).

　　五、驗收篇：四招判斷門套合不合格

　　5、 Acceptance section: Four methods to determine whether the door frame is qualified or not

　　1. 看外觀：像選衣服一樣挑 “顏值”

　　1. Look at appearance: Choose "looks" like choosing clothes

　　檢查方法：站在 1 米外看，門套表面不能有劃痕、氣泡，拼接處顏色要一致（像看瓷磚是否有色差）；

　　Inspection method: Standing 1 meter away, the surface of the door frame should not have scratches or bubbles, and the color of the joints should be consistent (such as checking whether there is color difference in the tiles);

　　不合格案例：某寫字樓門套有焊接黑斑，返工打磨 3 次才達標。

　　Unqualified case: There are welding black spots on the door frame of a certain office building, which need to be reworked and polished three times before reaching the standard.

　　2. 摸手感：比摸家具還講究

　　2. Touch sensation: More important than touching furniture

　　測試方式：用手掌從門套頂部摸到底部，不能有毛刺、凹凸感，轉角處要圓潤（類似摸嬰兒玩具的邊角）；

　　Testing method: Use your palm to touch the door frame from top to bottom, without any burrs or bumps, and the corners should be rounded (similar to touching the corners of a baby toy);

　　安全意義：尖角可能劃傷老人小孩，合格門套轉角弧度≥R2mm（像手機圓角）。

　　Safety significance: Sharp corners may scratch the elderly and children. The qualified door frame has a corner radius of ≥ R2mm (similar to the rounded corners of a mobile phone).

　　3. 聽聲音：敲一敲辨 “虛實”

　　3. Listen to the sound: knock to distinguish between "virtual and real"

　　驗收技巧：用指關節輕敲門套，聲音沉悶表示安裝牢固，空洞聲說明里面有空鼓（類似敲墻壁查空鼓）；

　　Acceptance technique: Lightly tap the door frame with fingertips. A dull sound indicates a firm installation, while a hollow sound indicates a hollow drum inside (similar to tapping a wall to check for a hollow drum);

　　處理方法：有空鼓的地方必須拆開重裝，某酒店曾因空鼓導致門套半年后脫落。

　　Solution: The area with hollowing must be disassembled and reassembled. A hotel once had its door frame fall off after six months due to hollowing.

　　4. 測功能：開關門像滑滑梯一樣順

　　4. Testing function: Opening and closing the door is as smooth as a slide

　　測試流程：連續開關門 50 次，門套不能有異響、卡頓，門縫寬度始終一致（像抽屜推拉順暢）；

　　Test process: Open and close the door continuously 50 times, without any abnormal noise or jamming of the door frame, and the width of the door gap is always consistent (like smooth sliding of a drawer);

　　關鍵數據：開關門阻力≤50N，相當于提 5 公斤大米的力氣，老人小孩都能輕松推動。

　　Key data: The resistance of opening and closing the door is ≤ 50N, which is equivalent to the force of lifting 5 kilograms of rice. Both the elderly and children can easily push it.

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