The market price of Zhengzhou copper bars is basically stable， and the shipment is not good. In terms of tube blank: today， Shandong Luli tube blank slightly reduced by yuan， and the current mainstream ex factory price is - yuan. In terms of pipe plant: Linyi Pipe Plant locked the price for a week. With a stable market mentality， the factory price of hot rolled seamless pipes is now between - yuan. On the market side: with the arrival of the off-season， traders generally ship goods at a high price. Replenishment is mainly to maintain the existing inventory， and there is no large replenishment plan. The demand is sluggish， and the market price of Zhengzhou copper bar is expected to be stable and declining.
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.
マラッカDisadvantages: The pipe structure is loose， and it is not resistant to high pressure. It is only suitable for the production of small air conditioning copper pipes.
見通しが楽観的で資源が逼迫しているため，部の製鉄所ではしばらく受注しないという.遼寧省の製鉄所は鋼材購入の意欲を高めた.製鉄所の納品が好調で原材料価格が上昇したため，鉄鉱石価格が上昇した.製鉄所は鉄鋼の生産意欲が高いため，鋳鉄資源が少なく，価格も上昇した.唐山の部の製鉄所では製錬用に少量の鋼材が調達され始めており，多くの製鉄所ではまだ様子見が続いている.コスト増加と需要の逐次放出を背景に，銑鉄市場は好調で，短期的には引き続き力強い運行が見込まれている.
ルギバ材料と総コスト，安定性，パフォーマンスを節約し，メンテナンスを節約できます.
Although the opening continued the weak trend， the intraday transactions improved， and the prices of some copper bar manufacturers rose. From the specific situation， although the manufacturer feedback that the shipment is average， the mentality is relatively calm the market inventory is not much，マラッカ7075アルミニウム管， the transaction of strip steel is better than other steel varieties and the manufacturer is not willing to significantly reduce the price. In terms of the market， and the downstream mainly focuses on callback buying without panic inventory clearing. It can be seen that although the steel market continues to shake， the overall demand for strip steel remains in a good state.
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，酸化反応による銅管の生産という成熟した技術があります.この生産方法は中国の銅管の主要な生産方法である.
銅板，銅棒，パイプ，装飾装置として使用されている.
Welding sequence of copper pipe Before heating， apply the flux to the position to be welded.
If the corrosion on the copper surface is found to be slight， it can be erased with linen copper wire， but it is not recommended to apply oil for preservation.
ホームページのオススメAmong the three production methods of copper tube， the oxidation method is the most. Because as long as the metal copper is oxidized by the anode and the copper ion of the anode is attached to the tube material， the copper tube can be produced. Thisthod is also the most common method to produce copper materials. It has not only been used for a long time，マラッカブロンズ管， but also has a mature technology， which is to produce copper tubes through oxidation reaction. This production method is the main production method of copper tubes in China.
If the corrosion on the copper surface is found to be slight， it can be erased with linen copper wire， but it is not recommended to apply oil for preservation.
When placing， they should be stored separately according to the different components， and should not be mixed together. The copper surface may have electrolytes， so it will react， especially with other materials such as rubber， which has a large impact.
Extrusion method: This production method is to cast copper ingots after smelting， and extrude copper tubes by large extruder after secondary heating.
品質指標On October ， according to the Economic and Information Commission oong Province， at the end of September ， Shandong Province had resolved the overcapacity of million tons of pig iron and million tons of crude steel， and all the de capacity equipment had been shut down and withdrawn. On October ，定の耐食性を有するリン化膜を生成する.exは表参照分な処方と操作条件.表脱脂，錆除去，リン化及び不動態化
これらの要素を考慮して，月以来，ますます多くの鉄鋼工場が生産を停止し，呉州の生産量も制限されている.西安と唐山の暖房シーズンが早まった.また，生産制限を正式に実施する.quot；+&；quot；鉄鋼企業の月日以降の都市暖房シーズンは，将来的に鉄鉱石需要がさらに悪化する可能性がある.製鉄所の鉄鉱石在庫は相対的に高く，さらに在庫を補充する意欲は強くない.供給の面では，第半期は通常，輸入鉱石の出荷のピークである.環境保護のため，国内鉱山の生産量は減少したが，短期鉄鉱石市場は上昇動力に乏しい可能性がある.
マラッカThe production method of soft copper tube is basically the same as that of hard copper tube， that is the annealing process is added compared with the hard copper tube. Annealing of copper tubes means that they are calcined in a high temperature furnace to change the arrangement of the elements in the copper tubes. However， after annealing， the copper tubes will become soft， which makes it easier to bend. The copper tubes produced in this way are called soft copper tubes.
In the morning trading today， the average price of * mm hot rolled strip in key cities in China is ， down yuan from yesterday. Futures prices fluctuated， and the prices of spot market manufacturers eased slightly today. According to the feedback， which caused the overall transaction blocked， and the mainstream manufacturers prices fell today.
I dont know how to keep the copper tube.