C型鋼的外觀質量檢驗

Appearance quality inspection of C-shaped steel

一、肉眼觀察冷拉C型鋼表面時，表面應潔凈、光滑、光亮或無光澤，無裂紋、夾雜物、發際線、褶皺和鱗片。個別小劃痕、拉伸裂紋、黑點、四邊、麻點等。允許不大于實際尺寸的公稱尺寸偏差。

1、 When observing the surface of cold-drawn C-shaped steel with the naked eye, the surface should be clean, smooth, bright or dull, without cracks, inclusions, hairlines, wrinkles, and scales. Individual small scratches, tensile cracks, black spots, four edges, pits, etc. Allow nominal size deviation not greater than the actual size.

二、型鋼應平直，鋼板應平整，側端應切割成直角。除上述規定外，軌端和螺栓孔表面不可以有縮孔、脫層和裂紋，兩端應銑平。

2、 The section steel should be straight, the steel plate should be flat, and the side ends should be cut into right angles. In addition to the above regulations, there should be no shrinkage, delamination, or cracks on the surface of the rail end and bolt hole, and both ends should be milled flat.

三、用肉眼觀察熱軋C型鋼表面時，不應有裂紋、褶皺、結疤、分層和夾雜物。允許有凹痕、局部凸起、四邊和凹坑，但高度或深層不可以超過相關技術標準。允許去掉局部缺陷，但不允許橫向去掉。移除不可以超過該尺寸與實際尺寸之間的C型鋼允許負偏差。

3、 When observing the surface of hot-rolled C-shaped steel with the naked eye, there should be no cracks, wrinkles, scars, layering, or inclusions. Dents, local protrusions, edges, and pits are allowed, but the height or depth cannot exceed relevant technical standards. Local defects are allowed to be removed, but horizontal removal is not allowed. Remove the allowable negative deviation of C-shaped steel that cannot exceed the difference between this size and the actual size.

四、鋼管的壁厚、表面粗糙度、圓度和直線度應符合技術標準。螺紋管、鍍鋅鋼管和地質管的連接螺紋應涂油，并配有保護環。

4、 The wall thickness, surface roughness, roundness, and straightness of steel pipes should comply with technical standards. The connecting threads of threaded pipes, galvanized steel pipes, and geological pipes should be coated with oil and equipped with protective rings.

五、鍍鋅鋼板和鍍鋅鋼管的鍍鋅層不允許有裂紋、分層、漏鍍等缺陷。

5、 The galvanized layer of galvanized steel plates and galvanized steel pipes shall not have defects such as cracks, layering, or missed plating.

六、型鋼外觀應平整、整齊，其圓度、邊寬、高度、厚度、長度、扭轉、斜度、波浪曲率、波浪彎曲度、平直度不可以超過相關標準規定的偏差。

6、 The appearance of the section steel should be flat and neat, and its roundness, edge width, height, thickness, length, torsion, slope, wave curvature, wave bending, and straightness should not exceed the deviation specified in relevant standards.

濟南c型鋼的堆放

Stacking of Jinan C-beam

一、堆放原則是在穩定堆放、確定的情況下，按品種、規格堆放。不同品種的材料應分開堆放，防止混淆和相互腐蝕。

1、 The stacking principle is to stack according to variety and specifications under stable and determined conditions. Different types of materials should be stacked separately to prevent confusion and mutual corrosion.

二、同樣的材料按照倉單分開堆放，便于先出原則的實施。

2、 The same materials are stacked separately according to the warehouse receipts, which facilitates the implementation of the first out principle.

三、垛間應有相應的通道，檢查通道一般為0.5m，進出通道一般為1.5~2.0m，具體視材料和運輸機械的大小而定。

3、 There should be corresponding passages between the stacks, with an inspection passage generally of 0.5m and an entry and exit passage generally of 1.5-2.0m, depending on the size of the materials and transportation machinery.

四、禁止在堆放位置附近存放腐蝕性為C型鋼的物品。

4、 It is prohibited to store items with corrosive C-shaped steel near the stacking location.

五、樁底應高、實、平，防止材料受潮或變形。

5、 The pile bottom should be high, solid, and flat to prevent moisture or deformation of the material.

出廠前使用C型鋼防腐劑或其他電鍍和包裝是防止材料腐蝕的重要措施，在運輸、裝卸過程中應加以保護，不可以損壞，并能延長材料的儲存壽命。更多相關事項就來我們網站http://www.cworksmarketing.com咨詢！

The use of C-shaped steel anti-corrosion agents or other electroplating and packaging before leaving the factory is an important measure to prevent material corrosion. It should be protected during transportation, loading and unloading, not damaged, and can extend the storage life of the material. For more related matters, come to our website http://www.cworksmarketing.com consulting service