Because of the characteristics of copper itself， it is very easy to rust and corrode in places with high ambient humihumidity. If we often use it， the problem will be smaller， but if it is placed for a long time， the copper will be damaged. Many people do not know how to treat the copper surface? Now let the staff answer for you.
If you want to avoid this kind of situation for a long time， you can choose passivation treatment. In this way， not only is the copper surface serious， it can be cleaned under normal circumstances， but it is not a big problem to keep it in the air for one year or more after ultrasonic treatment and immersion treatment， so this effect is very good.
カンガー堆積した銅管については，できるだけ外装を開けないようにしてください.
The material of the water separator is the same the expansion coefficient is the same， and the connection with the water separator is not easy to leak. Scope of application: As the copper pipe is more expensive than the plastic pipe， the cost of the floor heating system is higher.
ベベジアThe market opened today. Although the performance of Zitong Pai futures was modest， the overall market has stopped. The market mentality has not changed much sincekend. The price is stable， but some specifications are subject to negotiation， and the negotiation range is about - yuan. The overall rhythm of the market is stable and cold. In the middle of winter， the overall market in Northeast China has entered the traditional off-season， and the overall market has ended with little improvement. All companies are selling goods. The inventory level in Shenyang is very low due to the inventory clearing， and all construction sites have been closed. In addition to the transportation pressure brought by the low temperature， the market was bleak.
The market opened today. Although the performance of Zitong Pai futures was modest， the overall market has stopped. The market mentality has not changed much sincekend. The price is stable， and the negotiation range is about - yuan. The overall rhythm of the market is stable and cold. In the middle of winter， the overall market in Northeast China has entered the traditional off-season， and the overall market has ended with little improvement. All companies are selling goods. The inventory level in Shenyang is very low due to the inventory clearing， and all construction sites have been closed. In addition to the transportation pressure brought by the low temperature， the market was bleak.
押出法：本生産方法は溶融後に銅インゴットを鋳造し，次加熱後に大型押出機で銅管を押出する.
The application of copper tube The copper tube is generally used in the heat exchange equipment， and the low-temperature pipeline in the oxygen production equipment can also be used. Some relatively thin copper tubes can be used to transport some pressurized liquids， and can also be used as pressure measuring tubes in instruments; In addition， the copper pipe is relatively firm， which are easily corroded， so now many water pipes and refrigeration pipes used in buildings will choose to use the copper pipe.
軟水は銅管の腐食を引き起こしやすい.
月日，米国経済・情報化委員会によると年月末現在，山東省は万トンの銑鉄と万トンの粗鋼の生産能力過剰問題を解決し，すべての非生産能力設備は閉鎖され，退出した.邯鄲市発展改革委員会は月日，年の邯鄲の製鉄能力は万トン製鋼能力は万トンだった.
安全生産It has excellent conductivity， thermal conductivity， ductility and corrosion resistance.
銅管の特徴は，水道管，熱供給管，冷凍管を取り付けることの第選択である.
重点分野の赤銅在庫は上昇を続けているが，全体的な圧力は大きくない.現在の主要配送センターの全体的な在庫状況を見ると，Wu，安，江陰，楽従，在庫レベルは比較的温和を維持し，市場の圧力は相対的に小さい.Wu&# ;データによると，月日現在，呉市中厚板の総在庫量，anは万トンに近く，毎週トン増加している.月下旬には，年内に万トン減少し，春節後の 高水準から万トン低下し週連続で上昇した.ovについて言えば数は，カンガー15 CrMo合金鋼板，比較的穏やかなレベルに保たれていると言うべきだ.
欠点：生産量が低く，生産コストが高く，価格が高い.押出銅管技術は現在国内外の安定した，優良な銅管生産方法である.このような技術で生産された銅管だけが暖通分野に適しておりこれは銅管業界の将来の発展方向である.
所有権銅表面の腐食が軽微であれば，亜麻銅線で拭き取ることができますが，カンガー316 Lステンレスコイル，油を塗って防腐することはお勧めしません.
積み上げる時は合理的に積み上げ，カンガー7075アルミニウム棒，先に出してください.
配管を清潔にした後，直ちに継ぎ手とニップの隙間にフラックスとフラックスを塗布しなければならない.配合面に分なフラックスを薄く塗布し，すぐに組み立てて，ほこりや汚れが毛細管隙間を汚染しないようにしなければならない.
カンガーThe blowpipe shall be perpendicular to the lead pipe during welding， and the flame shall be moved continuously to prevent local overheating and the flux from carbonizing before filler metal is added.
銅管の特徴は，水道管，熱供給管，冷凍管を取り付けることの第選択である.
銅管のつの製造方法の中で，酸化法が も多い.金属銅が陽極によって酸化され，陽極の銅イオンが管材料に付着すれば，銅管を生産することができるからである.これ方法も銅材料を生産する も般的な方法である.長い間使用されているだけでなく
