The hard copper tube is not artificially treated after being drawn or extruded， so that it can be naturally formed. At this time， the organizational form in the copper tube is full. This kind of copper tube is more likely to crack and is not suitable for bending. Therefore， integrating cold resistance， heat resistance， pressure resistance corrosion resistance and fire resistance， and can be used in different environments for a long time.
아 디 케Red copper plate has ductility. Pure copper， which is as big as a drop of water， second onlyver in common metals. But copper is much cheaper than silver， so it has become the "protagonist" of the electrical industry.
In the middle and late ten days， although there were good news such as the rise of futures and the increase of production restriction policy in Wuan region， due to the high inventory level， traders had no desire to increase prices， most of them had shipped goods， and spot prices lacked motivation to rise. The market inventory rose significantly. At that time， the market inventory in Handan reached a high level after the festival. The sluggish demand performance for a long time led to the oversupply of the market， and the continuous rise of inventory led to the empty market mentality.
구리 표면의 부식이 경미한 것으로 발견되면 리넨 동선으로 지울 수 있지만 기름을 발라 방부하는 것은 권장되지 않는다.
According to * * new data， in September ， Chinas imported iron ore * * * broke through the million ton mark， reaching million tons， a record high; From January to September， Chinas iron ore import increased by % to million tons， and the annual import volume is expected to exceed billion tons. However， judging from the shipment of imported ores after the National Day， due to the rapid declinecline in iron ore prices， the iron ore price index once fell below $， which reduced the enthusiasm for the shipment of imported ores. In addition， environmental protection inspection has become stricter， and the supply of some domestic mines has been greatly affected. The current operating rate of domestic mines is percentage points lower than the previous peak， which is likely to decline further in the future.
In addition， it is very strong， so copper pipes need to be selected many times in other places.The color change on the outer surface of the copper tube is difficult to control due to environmental factors. To prevent moisture absorption on the surface and core of the annealed brass tube and can adapt to various environments. It can be used normally at low and high temperatures， a constant temperature and humidity packaging room can be built. Packaging in the packaging room can avoid the color change on the outer surface of the copper tube. However， it is not easy to control the situation that occurs in the processing process. The cost of ensuring constant temperature and humidity in the whole workshop is too high. The following measures are taken to control the process materials: In the season of high temperature and humidity，볼 로 코 바 니동봉， during the production and processing of copper tubes， the amount of oil coating on the surface of copper tubes can be increased to form an oil film on the surface of copper tubes， which can isolate water vapor and corrosive gases， and prevent the corrosion of the surface of copper tubes; The humidity in the air at night is high， and the outer surface of the copper pipe is prone to corrosion and discoloration at night. Closing the doors and windows of the workshop at night can make the situation worse; After the coil surface is cleaned in the rewinding process， the coating amount of passivation agent on the copper tube surface is increased. After blanking in the rewinding process， plastic bags shall be added to the whole support material to further reduce the contact between the copper pipe and the air and prevent the surface of the copper pipe.
The market price of Zhengzhou copper bars is basically stable and the shipment is not good. In terms of tube blank: today， 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 Shandong Luli tube blank slightly reduced by yuan， 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.
생산 업 체The 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， unlike other metals， which are easily corroded， so now many water pipes and refrigeration pipes used in buildings will choose to use the copper pipe.
Copper tube is also called copper tube nonferrous metal tube. It is a pressed and drawn seamless pipe， characterized by light weight， good thermal conductivity， high low-temperature strength and corrosion resistance. Because of these excellent properties of copper tubes， the use of copper tubes is very common. What are the differences between hard copper tubes and soft copper tubes in the use process? What are the differences between the two in terms of specific applications?
Strong connection firmness of copper pipe: the connection between copper pipe and copper fittings is strong.
The composite method of three production methods of copper tube is also a high-tech production method for this method. It is a copper material containing impurities. Those copper materials， copper alloys and composite copper materials are put together by electrochemical reaction to produce a nanocrystalline copper material， and then the material is purified to produce copper tube materials.
클릭 하여 보기경동관과 연동관의 사용 중의 차이는 경동관은 직관으로만 사용할 수 있고 구부려서는 안 된다.따라서 일반적으로 발전소， 전기 설비의 스위치 및 연결점이 멀고 구부릴 필요가 없는 곳에 사용됩니다.경동관은 연동관에 비해 가격이 더 싸다.소프트 구리 파이프의 이름은 soft tube이지만 하드 파이프로도 사용할 수 있으므로 소프트 구리 파이프는 더 많은 곳에서 사용되며 직관 방식으로 사용할 수 있습니다. 예를 들어헬리컬 파이프 방식으로.코일을 사용하면 구리 파이프의 길이가 더 길어질 수 있습니다.첨부 점이 긴 경우 길이에 따라 임의로 절단하여 구리 파이프를 용접할 때 누출을 방지할 수 있습니다.소프트 구리 파이프는 많은 냉장고， 에어컨 및 튜브가 필요한 다른 곳에 사용됩니다.우리가 구리를 사용할 때， 우리는 집에서 소량을 구매하지 않는 한 보존 문제를 고려할 필요가 없다.예를 들어， 대형 제조업체는 구리 유닛을 사용하여 대량의 구리 파이프를 한 번에 구매하기 때문에 문제가 발생할 수 있습니다.나는 어떤 사람들이 사용하지 않은 구리 재료를 저장하는 방법을 모른다고 믿는다. 지금 우리가 하자;우리는 우리의 직원에게 당신에게 구리의 저장 방법을 소개해 달라고 청했습니다.
연주연압법: 이런 생산방법은 전해동제련후 직접 공심동벽돌을 주조하고 행성압연법으로 동관을 생산하는것이다.
To sum up， due to the influence of factors such as the current spot market price is much higher than the expected winter storage price of merchants， the gradual emergence of supply and demand pressure， and the weakness of raw material support，볼 로 코 바 니12Cr1MoV 합금 강판， among which the contraction of market demand has a greater impact. Therefore， the author believes that in the short term， the spot building materials do not have the possibility to rise significantly， and the price of building materials may mainly operate in shock， but with the shrinking demand，볼 로 코 바 니310s 스테인리스 스틸 무봉관， the supply and demand pressure becomes prominent， However， considering the influence of winter storage and other factors， it is still possible for merchants to lower the spot price in November.
볼 로 코 바 니This week (-， the market price of red copper bar rose， and the transaction was not ideal. On the bidding day of Shagang last weekend， the price was stable to support the market， and the price of variety wire rods also rose by yuan at the weekend. However， it was reported that the deal was very poor， which led to the price being stable for the next two days. Until Wednesday， due to the negative outlook on the future market and the reduction of steel billets in the afternoon spiral diving， the market lowered the price. Market price changes， Xinji rose yuan on the rd; For the future market， the off-season is coming， the demand is weakening， the environmental protection inspection is becoming more and more strict， which supports the market. It is expected that the price ofety wire rod will be adjusted in a weak way in the short term.
The excellent performance of copper pipe The copper pipe has the characteristics of and， which makes it a suitable choice for modern contractors to install water pipes， heating and cooling pipes in all residential commercial housing.
현재의 전체 가격차를 감안할 때， 오늘 현지 동봉 가격은 계속 높은 수준으로 상승하고 있지만 화동 지역 이외의 지역은 뚜렷한 후속 추세가 나타나지 않고 있으며， 현지 가격은 여전히 동북과 화중 지역과의 가격차의 우세를 가지고 있다.생산 제한의 영향으로 현지의 후속 상품량이 비교적 적기 때문에， 동봉 가격의 지탱은 여전히 강하다.그러나 현재 국내 부동산 통제는 여전히 강화되고 있다.시장 & # ;미래의 수요에 대한 시장의 예상이 약화되고 있습니다.오늘 심양 동봉의 시장 가격이 안정되어 출하량이 좋지 않다.