단점: 생산량이 낮고 생산 원가가 높으며 가격이 높다.압출 동관 공예는 현재 국내외의 안정적이고 우수한 동관 생산 방법이다.오직 이런 공예로 생산한 동관만이 난방분야에 더욱 적합하며 이는 동관업종의 미래의 발전방향이다.
베 라 난When stacking， reasonable stacking and first in first out shall be achieved.
When stacking， it shall be stacked reasonably and placed first.
심양우선， 우리는 창고를 하나 세워야 한다.창고 내의 온도는 보통 - & deg로 유지해야 한다.C. 습도는 정상이어야 합니다.방은 통풍을 유지해야 한다.
또한 쉽게 부식되지 않으며 다양한 환경에 적응할 수 있습니다.그것은 저온과 고온에서 정상적으로 사용할 수 있기 때문에 다른 곳에서는 여러 번 동관을 선택해야 한다.
Red copper inventory may end the trend of continuous decline. With the increase of production restriction of steel enterprises and the pressure of demand， the continuous decline of iron ore port inventory may end. In addition，베 라 난T2 동갈비， according to the new statistics of * *， the available days of imported iron ore of steel mills are days， which is one day lower than that before the National Day， and is on the high side of history. The steel mill said that at present， the iron ore inventory basically meets the production requirements. Considering the future production reduction and restriction， the steel mill is not willing to replenish the inventory.
자재 및 총 비용， 안정성 및 성능 및 유지 보수 비용 절감
When cutting the copper pipe of air conditioner， use tools such as clamps to fix the copper bar and then cut it rather than fixing it by hand， to preveshaking and resulting in irregular cutting. After the cutting of the air conditioner copper pipe is completed， the cut parts need to be placed in a dry place， and then processed again after cooling，베 라 난빨간 동봉， otherwise oxidation will occur due to high temperature. Liu Shuchen， director of the Resource Analysis Office of the Information Center of the Ministry of Land and Resources， said that copper bar manufacturers are currently in a period of adjustment in Chinas mining industry as a whole. In the long run， especially the growth rate of the countrys economy. After the global economy may improve in the second half of the year， the global mining industry will rise again， and the W-shaped trend will fully emerge. In the second half of the year， there were signs of stabilizing and rebounding. In terms of the macro factors affecting the bulk commodities， the factors affecting the European market of tinned copper bars have gradually weakened， and the economic conditions of China and the United States have become the key factors affecting the bulk commodities. The European economic recession is a foregone conclusion， and the possibility of a crisis in the next period of time is also reduced. In recent years， the American market economy has shown the characteristics of better than expected in the first quarter and weaker than expected in the second quarter. Since January， the global price of medical copper tubes has gradually got rid of the main tone of this years shock and decline. "Air conditioning copper tubes show signs of stabilizing and rebounding. The three-month copper on the London Metal Exchange once rebounded nearly % from the years low point， and the market price has rebounded to around dollars per ton. Driven by this， products including aluminum， zinc and other products have also rebounded. Only nickel， a basic metal product， has remained weak.
When welding， just add enough filler metal to fill the capillary gap. Too much filler metal will only form a ball at the bottom of the joint or run into the pipe.
시장가 격The room temperature tensile strength of the annealed red copper sheet is ~ kgf/mm， the elongation is ~%， and the Brinell hardness (HB) is ~
그러나 단기간에 이런 상황을 바꾸기는 어렵다.당분간 국내 대강 가격이 주로 오를 것으로 예상된다.당산철강그룹유한공사는 이윤 추구를 위해 현재 열판관 공급을 늘리고 있는 것으로 알려졌다.앞으로 더 많은 제철소가 이윤을 추구하거나 하락의 위험을 묻는 경향이 있을 가능성도 배제할 수 없다.내일로 말하자면， 가격은 여전히 좁은 폭의 진동 운행 구도를 유지할 수 있다.
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， unlike other metals， so now many water pipes and refrigeration pipes used in buildings will choose to use the copper pipe.
On the other hand， in the steel plant， the lock price of the steel plant has been falling all the time， and the order receiving is poor. The capacity utilization rate of the steel plant is low， but the market is still in oversupply. The stock of the steel plant and the spot stock are both risirising， so the market price has fallen sharply. Subsequently， the futures market rebounded in a wave， and the spot price also increased with the increase. There was an instant of large volume of transactions. However， with the decline of black futures， the market transaction volume shrank significantly. In addition， the inventory pressure was high， traders shipped at low prices， the drop amplitude and rate are less than those of threads.
포장 전략On November the market price of Cangzhou copper bar was stable. According to the monitoring data of Lange Iron and Steels cloud business platform， the market price of * mm cold drawn steel produced in Linyi is yuan the market price of * mm in Linyi is yuan， the market price of * mm in Jianlong is yuan， the market price of * mm in Yuanhua is yuan the market price of * mm in Juneng is yuan， the market price of * mm in Baotou Steel is yuan， and the market price of * mm in Juneng thermal expansion is yuan.
To prevent core problems of copper tubes， the outlet tempmperature of copper tubes should be well controlled. The cooling capacity of the annealing furnace in the cooling stage should be improved by equipping a refrigeration unit for the annealing furnace， so as to ensure that the outlet temperature of copper tubes does not exceed ℃. By controlling the outlet temperature of copper tubes， the problems of the core of coil tubes and the inner wall of the purging inlet end can be solved.
Overview of three production methods of copper tube Copper tube is a very important material for copper materials. There are many ways to complete the production of this copper tube. For copper pipes， the following three methods are generally used to produce materials. The copper tubes produced by these three methods are not only very good in performance， so what are the three production methods for copper tube?
베 라 난동관 연결의 견고성이 강하다: 동관과 동관 부품의 연결이 견고하다.
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，베 라 난7075 알루미늄 튜브， 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.
Insert the pipe into the top of the bayonet，e the sleeve on the pipe to evenly apply the flux on the joint， and confirm that the pipe is inserted into the bottom of the socket， then wipe off the excess flux， and the joint is assembled and can be heated.