1.檢查:聚氨酯保溫管需要具備隔熱、防水材料雙重性能。材料進場后需要重新檢查原材料。噴涂聚氨酯的復檢內容主要包括材料的密度、壓縮性能、尺寸穩(wěn)定性和不透水性。
1. Inspection: polyurethane insulation pipe shall have double performance of heat insulation and waterproof materials. The raw materials need to be rechecked after entering the site. The re inspection contents of spraying polyurethane mainly include density, compression performance, dimensional stability and impermeability.
2.防水性能檢測:使用儲水或雨水檢查其防水效果，不允許積水或漏水。
2. Waterproof performance test: use water storage or rainwater to check its waterproof effect, no ponding or water leakage is allowed.
3.噴涂厚度檢查:使用鋼針插入和測量的方法來檢查厚度。
3. Spraying thickness inspection: use the method of inserting and measuring steel needle to check the thickness.
4.表面平整度檢測:用1米直尺和楔形塞尺測量，允許偏差為5毫米。
4. Surface flatness detection: measure with 1 meter ruler and wedge feeler gauge, and the allowable deviation is 5mm.
5.硬質泡沫聚氨酯應與基層粘結牢固，表面不1得有破損、脫層、鼓包、孔洞和裂紋。
5. rigid polyurethane foam should be firmly bonded to the base layer, and 1 of the surface must be damaged, delaminated, bulging, holes and cracks.
6.聚氨酯保溫管保溫層任何位置的泡沫密度不得低于60千克/立方米。泡沫表面光滑、不粘、不收縮、泡孔均勻、無塌陷和開裂。
6. polyurethane foam insulation should not be less than 60 kg / cubic meter in any position. The foam surface is smooth, non stick, no shrinkage, uniform pores, no collapse and cracking.
7.逐一檢查鋼管表面預處理質量。管材表面應無油污和灰塵。除銹質量應與《涂裝前鋼材表面銹蝕等級和除銹等級》標準版本進行目視比較，不得低于sa2級。
7. Check the surface pretreatment quality of steel pipe one by one. The surface of pipes shall be free of oil and dust. The derusting quality shall be visually compared with the standard version of "rust grades and derusting grades of steel surface before coating", and shall not be lower than SA2 grade.
8.逐一檢查鋼管防腐涂層的質量。防腐層外觀應均勻連續(xù)且無滲漏。防腐層的厚度應使用磁性測厚儀檢查，保證厚度應小于設計厚度。
8. Check the quality of anti-corrosion coating of steel pipe one by one. The appearance of anticorrosive coating shall be uniform and continuous without leakage. The thickness of anticorrosive coating shall be checked by magnetic thickness gauge to ensure that the thickness is less than the design thickness.
9.保溫層應無收縮、收縮、不均勻氣泡、燒芯等缺陷。
9. The insulation layer shall be free from shrinkage, shrinkage, uneven bubble, core burning and other defects.
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