Hygiene and health: various modifiers， additives， additives and other chemical components of plastic pipes in copper pipes.
antages: low production cost and high production efficiency.
웨스트 빌Reasons for copper pipe corrosion: Air pollution.
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.
코란.In the first ten days of May， the overall order receiving quantity of Tianjin Hebei Henan Plate Plant was not ideal. According to the monitoring data， the overall order intake of medium and heavy plate mills in Tianjin Hebei Henan region in the first ten days of May remained stable and weak. Due to the weak market shock， the overall order intake of the spot steel market was relatively weak. The total quantity of orders received in the first ten days of May is only about tons， while at the end of April， the total quantity of post settlement agreements of main steel plants can exceed tons.
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， 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.
동관의 응용 동관은 일반적으로 환열 설비에 사용되며， 산소 제조 설비의 저온 파이프도 사용할 수 있다.비교적 얇은 일부 동관은 일부 가압액체를 수송하는데 사용할수도 있고 계기중의 압력측정관으로 사용할수도 있다.또한 구리 파이프는 다른 금속과 달리 상대적으로 견고하고 쉽게 부식되기 때문에 현재 많은 건물에서 사용되는 수도관과 냉동 파이프는 구리 파이프를 사용합니다.
동봉시장은 이번 주에 안정적으로 하락하여 하락폭이 ~원이다.생철 재고가 비교적 낮기 때문에， 장시의 일부 제철소는 최근 이미 구매를 재개했지만， 구매량을 확보하기 위해 윈난 제철소의 양철 구매 가격은 약간 인상되었다.최근 강재 시장은 줄곧 흔들리고 조정 중이어서 상인들이 불안정하다.허베이， 톈진 및 기타 지역의 제철소는 이미 제강용 생철 생산을 중단했다.지금은 주로 조사가 이뤄질 것으로 보인다.그러나 원자재 가격이 낮기 때문에 제철소의 가격은 이미 인하되었다.
Copper pipe has the characteristics of firmness and corrosion resistance， and is the choice for the installation of water pipe， heating pipe and refrigeration pipe.
Red copper plate has ductility. Pure copper， which is as big as a drop of water， can be pulled up to two kilometers of thin wire or rolled into a transparent foil larger than a bed. The most valuable property of red copper row is that it has a very good conductive ， second onlyver in common metals. But copper is much cheaper than silver so it has become the "protagonist" of the electrical industry.
품질 이 좋다요약하면， 중장기 정책과 대환경 및 선양의 현재 재고 수준에 근거하여 동북지역 시장은 보편적으로 비관적이다.구리 배출의 낮은 재고 수준은 전체 시장을 동력이 부족하게 한다.본 시의 동봉시장은 올해 이미 멈추어 단기와 중기 내에 개선하기 어렵다.총체적으로 볼 때 래일 심양의 동봉의 시장가격은 안정될수 있다.
동봉시장은 이번 주에 안정적으로 하락하여 하락폭이 ~원이다.생철 재고가 비교적 낮기 때문에， 장시의 일부 제철소는 최근 이미 구매를 재개했지만， 구매량은 크지 않다.전기 양철 구매 가격이 비교적 낮기 때문에，웨스트 빌6061 알루미늄 바， 구매량을 확보하기 위해 윈난 제철소의 양철 구매 가격은 약간 인상되었다.최근 강재 시장은 줄곧 흔들리고 조정 중이어서 상인들이 불안정하다.허베이，웨스트 빌7075 알루미늄 튜브， 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， and the manufacturer is not willing to significantly reduce the price. In terms of the market， the transaction of strip steel is better than other steel varieties， 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.
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.
직접 재료전망이 밝고 자원이 부족해 일부 제철소는 당분간 주문을 받지 않는다고 한다.랴오닝의 제철소는 강재를 구매하려는 열정을 증가시켰다.제철소의 납품이 양호하고 원자재 가격이 올라 철광석 가격이 올랐다.제철소는 철강 생산에 대한 열의가 높아 주철 자원이 많지 않고 가격도 올랐다.당산의 일부 강철공장은 소량의 강재를 구매하여 제련에 사용하기 시작하였는데 대다수 강철공장은 여전히 관망하고있다.원가가 증가하고 수요가 점차 방출되는 배경하에서 생철시장은 량호한 모습을 보이고있으며 단시일내에 계속 강하게 운행될것으로 예상된다.
이러한 문제를 해결하기 위해 실리콘을 함유한 용접사는 일반적으로 용접에 사용되는데， 실리콘은 용접지 표면에 촘촘한 실리콘 막을 형성하기 때문에 아연의 증발을 방해하고 수소의 침입을 방지할 수 있다.
Generally， oxygen aylene is used as the gas source and LPG welding tool is used for heating. The torch of the welding tool shall face the joint and then continuously heat the whole joint. This will avoid excessive local heating.
웨스트 빌Today， the price of tube billets is up and down. At present，웨스트 빌청동판， Jiangxin hot rolling is yuan， continuous casting yuan is down yuan， Dongfang hot rolling yuan is down yuan， Luli hot rolling yuan is down yuan， Tiangang hot rolling an is down yuan， production is stopped in mid January， continuous casting yuan is up yuan， Huaigang yuan is up yuan， Zhongtian yuan， Changqiang yuan， Linggang yuan.
The difference between hard copper tubes and soft copper tubes in use Hard copper tubes can only be used as straight tubes and cannot be bent. Therefore， they are generally used in power plants， switches of electrical equipment， and places where the connection points are far away and do not need to be bent. Compared with soft copper tubes， the price of hard copper tubes will be lower. Although the name of the soft copper tube is soft tube， so the soft copper tube is used in more places， and can be used in a straight tube way， asell as in a coiled tube way. The length of the copper tube can be longer if the coil is used. If the connection point is longer， it can be cut randomly according to the length， so as to prevent leakage when welding the copper tube. Soft copper pipes are used in many refrigerators， air conditioners and other places where bending pipes are needed. When we use copper， we need not consider the preservation problem unless we buy a small amount at home. For example， large manufacturers use copper units to buy a large number of copper pipes once， so there will be a problem. I believe some people do not know how to store unused copper materials， Now lets ask our staff to introduce the storage method of copper for you.
Red copper inventory in key areas has risen continuously， but the total pressure is not big. From the current overall inventory situation of the main distribution centers Wuan， Jiangyin and Lecong， the inventory level remains relatively moderate， and the pressure on the market is relatively small. In Wuan market， according to the data， as of May ， the total inventory of medium and thick plates in Wuan was close to tons， increasing by tons on a weekly basis. In late April， it reached tons lower in the year， and rose for three consecutive weeks. In terms of the ovquantity it should be said to maintain a relatively moderate level.
