很多济南业主挑庭院门，先被效果图里的卷草纹吸引，签完合同才发现问题：下雨后焊缝处冒黄点、开关两年门扇往一边歪、电动遥控冬天失灵。铁艺大门不是“铁条焊个框”，它天天扛着风载、温差和济南的雨雪，里子比面子重要十倍。

Many homeowners in Jinan choose courtyard doors and are first attracted by the curly grass patterns in the renderings. After signing the contract, they discover problems such as yellow spots appearing at the welds after rain, door leaves tilting to one side after two years of operation, and electric remote control malfunctioning in winter. The wrought iron gate is not just a welded frame made of iron bars. It carries wind loads, temperature differences, and the rain and snow of Jinan every day, and its interior is ten times more important than its face.

选门时把下面几件事钉死在采购单里：

When selecting a door, nail the following things to the purchase order:

主材认准国标Q235B，庭院家用方管实厚不低于1.5毫米，单扇超1.5米宽就把立柱加到60×60毫米以上；厂区、车库重型门直接上2.5到3.0毫米壁厚，别信“看起来够粗”的口头保证。

The main material should be identified according to the national standard Q235B. The solid thickness of the courtyard household square tube should not be less than 1.5 millimeters. If the width of a single fan exceeds 1.5 meters, the column should be increased to 60 × 60 millimeters or more; The heavy-duty doors in the factory area and garage have a wall thickness of 2.5 to 3.0 millimeters, don't believe the verbal guarantee that they look thick enough.

防锈走“酸洗除锈—整件热浸镀锌—静电喷塑或氟碳面漆”这条线。锌层厚度让厂家写进合同（户外建议≥60微米，潮湿区≥85微米），只刷一层防锈漆的便宜门，济南这种冬冷夏湿的天气，两三年就从焊口起皮。

Rust prevention follows the line of "acid pickling rust removal - whole piece hot-dip galvanizing - electrostatic spraying or fluorocarbon coating". The thickness of the zinc layer should be included in the contract by the manufacturer (recommended to be ≥ 60 microns for outdoor use and ≥ 85 microns for humid areas). For cheap doors with only one layer of anti rust paint, in Jinan, where the weather is cold in winter and humid in summer, it takes two to three years for the welding joints to peel off.

焊完必须打磨补锌，切割断面和花件背面也要喷到，很多门不是正面锈，是背面先烂穿。

After welding, it is necessary to polish and replenish the zinc, and the cut surface and the back of the decorative parts should also be sprayed. Many doors do not rust on the front, but rather on the back.

合页、地轴、锁舌用304不锈钢或铜套，电动款加遇阻回弹和手动释放，停电能推开、夹到人不硬拽。

The hinges, floor shafts, and locking tongues are made of 304 stainless steel or copper sleeves, and the electric version is equipped with rebound and manual release when encountering resistance. It can be pushed open and clamped by people without being forcefully pulled during power outages.

基础别省：门柱浇混凝土墩，深度过本地冻土层，空心砖墙一律加穿墙螺杆或预埋板，不然再厚的门也晃。

Basic province: Pour concrete piers into the door posts, with a depth exceeding the local frozen soil layer. All hollow brick walls should be equipped with through wall screws or embedded plates, otherwise even the thickest doors will shake.

顺手一个动作：让厂家留一小段同工艺边角料，后期补焊花件或者自己改小门时，颜色和锌层能对上，不会新旧两块像拼凑的。

One convenient action: ask the manufacturer to leave a small piece of the same process edge material, so that when welding decorative parts or modifying the small door later, the color and zinc layer can match, and the old and new pieces will not look like pieced together.

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This article is a friendly contribution from Jinan Iron Art Gate For more information, please click: http://www.jnghbxg.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message