鐵藝大門，又稱鐵藝門、庭院門，是一種建筑裝飾藝術，其初始功能以防盜為主，后逐步發展為兼具實用性與裝飾性的多元化功能金屬構件。在國內，鐵藝大門主要應用于小區入口、別墅庭院入口、新農村、大型建筑外部入口、工廠大門等場所。作為建筑裝飾藝術，鐵藝大門出現在17世紀初期的巴洛克建筑風格盛行時期，一直伴隨著歐洲建筑裝飾藝術的發展。

Iron gate, also known as iron gate or courtyard gate, is a type of architectural decorative art. Its initial function was mainly anti-theft, and it gradually developed into a diversified functional metal component that combines practicality and decoration. In China, wrought iron gates are mainly used at entrances to residential areas, villa courtyards, new rural areas, external entrances to large buildings, factory gates, and other places. As an architectural decorative art, wrought iron gates appeared during the prevalence of Baroque architectural style in the early 17th century and have been accompanying the development of European architectural decorative art.

鐵藝大門按工藝分兩大類： 鐵藝大門按工藝分為鑄鐵與鍛打兩類。鍛打工藝采用專用鐵藝材料，通過高溫加熱后手工鍛打成型，紋理自然流暢，每一件作品都具有獨特性。鑄鐵大門則是將鐵水澆入模具成型，適合批量生產，成本相對較低但藝術表現力不如鍛打。

Iron gates are divided into two categories based on their craftsmanship: cast iron gates and forged gates. The forging process uses specialized iron materials, which are manually forged and formed through high-temperature heating. The texture is natural and smooth, and each piece has its own unique characteristics. Cast iron gates are formed by pouring molten iron into molds, which are suitable for mass production and have relatively low costs, but their artistic expression is not as good as forging.

按風格劃分： 從風格上可分為古典型和現代型。古典型多采用復雜圖案、仿古色調并展現粗獷藝術風格；現代型以簡潔方管結構為主。別墅鐵藝大門還衍生出傳統吉祥中國風、歐洲奢華等細分類型。

Divided by style: It can be divided into classical and modern styles. Classical styles often use complex patterns, antique color tones, and showcase rough artistic styles; The modern model mainly features a simple square tube structure. The villa's wrought iron gate has also spawned traditional auspicious Chinese style, European luxury and other sub types.

按結構劃分： 分為欄桿通透型與實心門扇型。前者以方管框架鑲嵌鐵藝配件，通透感強、采光好；后者以鐵板為基底結合裝飾配件，私密性和防盜性更優。

Divided by structure: divided into railing transparent type and solid door leaf type. The former is embedded with iron fittings in a square tube frame, which has strong transparency and good lighting; The latter is based on iron plates combined with decorative accessories, providing better privacy and anti-theft performance.

按開啟方式劃分： 主要有平開和推拉兩種。平開大門分為4種類型，每種類型包括900～8400mm共12種門洞寬度、1500～3000mm共6種門扇標志高度，共72種門型供設計選用。平開門適合跨度≤4m的場合，開啟角度≥90°；推拉門適合跨度＞4m的大門。

Divided by opening method: there are mainly two types: flat opening and push-pull. There are 4 types of swing doors, each including 12 door opening widths ranging from 900mm to 8400mm, 6 door leaf sign heights ranging from 1500mm to 3000mm, and a total of 72 door types for design selection. Flat doors are suitable for situations with a span of ≤ 4m and an opening angle of ≥ 90 °; Sliding doors are suitable for large doors with a span greater than 4m.

選材是鐵藝大門的核心： 鋼材的質量直接決定大門的堅固程度和使用壽命。大門主框架鋼材厚度應不小于3mm。常見鋼材有普通碳素鋼和不銹鋼——普通碳素鋼價格相對較低，但防銹性能較差，需進行嚴格的防銹處理；不銹鋼具有優異的防銹、耐腐蝕性能，適用于沿海地區或潮濕環境，但成本較高。優先選用Q235/Q345碳素結構鋼（厚度≥3mm），鋼材需滿足《碳素結構鋼》（GB/T700）要求，表面無裂紋、夾渣等缺陷。

Material selection is the core of wrought iron gates: the quality of steel directly determines the strength and service life of the gate. The thickness of the main frame steel for the gate should not be less than 3mm. Common steels include ordinary carbon steel and stainless steel - ordinary carbon steel has a relatively low price, but its rust prevention performance is poor and requires strict rust prevention treatment; Stainless steel has excellent rust and corrosion resistance, suitable for coastal areas or humid environments, but the cost is relatively high. Priority should be given to using Q235/Q345 carbon structural steel (thickness ≥ 3mm), which must meet the requirements of "Carbon Structural Steel" (GB/T700) and have no defects such as cracks or slag inclusions on the surface.

配件同樣關鍵： 合頁作為連接大門與門框的關鍵部件，應選擇承重能力強、材質厚實的合頁，建議采用不銹鋼或鑄鐵材質。門鎖和拉手不僅要實用，還要與大門整體風格相協調，選擇經過防銹處理、機械性能良好的產品。鎖具、合頁、把手建議選用304不銹鋼或銅合金，避免電化學腐蝕。

Accessories are equally crucial: hinges, as key components connecting doors and door frames, should be selected with strong load-bearing capacity and thick materials. It is recommended to use stainless steel or cast iron materials. Door locks and handles should not only be practical, but also coordinated with the overall style of the door. Choose products that have undergone rust prevention treatment and have good mechanical performance. It is recommended to use 304 stainless steel or copper alloy for locks, hinges, and handles to avoid electrochemical corrosion.

防銹處理是鐵藝大門的“生命線”： 鐵藝大門最有效、最實用的防銹方法是熱浸鍍鋅。熱浸鍍鋅是將鐵藝大門浸入熔化的鋅中，在表面生成鋅鐵合金層及純鋅層，用以隔絕鐵藝工件被氧化的機會，防銹期長達20-50年以上。鍍鋅層厚度應≥85μm。面層可選用氟碳漆、丙烯酸聚氨酯漆（耐候性≥10年）。沿海地區強烈建議選擇316不銹鋼材質或熱鍍鋅+氟碳漆雙重防護，抵抗氯離子腐蝕。

Rust prevention treatment is the "lifeline" of wrought iron gates: the most effective and practical rust prevention method for wrought iron gates is hot-dip galvanizing. Hot dip galvanizing is the process of immersing a wrought iron gate in molten zinc to form a zinc iron alloy layer and a pure zinc layer on the surface, which is used to isolate the opportunity for the wrought iron workpiece to be oxidized. The rust prevention period can last for more than 20-50 years. The thickness of the galvanized layer should be ≥ 85 μ m. The surface layer can be coated with fluorocarbon paint or acrylic polyurethane paint (weather resistance ≥ 10 years). It is strongly recommended to choose 316 stainless steel material or hot-dip galvanized+fluorocarbon paint for dual protection in coastal areas to resist chloride ion corrosion.

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