In August， the price of domestic medium and heavy plates fell sharply. As of August ， the price center of ordinary carbon boards in leading cities had dropped to ， down yuan/ton from the end of July. At the beginning of the month， affected by the macro bad news and the recent poor performance of fundamentals， the market mentality turned to pessimism， and some traders shipped at low prices. The market inventory rose， the inventory pressure was high， and the market transaction atmosphere was cold， the demand performance continued to decline， and the spot price fell under pressure.
Ban La sada 핀란드The copper tube welding process is to radiate the copper tube bundle with excellent directivity， high strength， high monochromaticity， high coherence and other characteristics to the surface area of the workpiece to be processed. After the copper tube bundle is focused by the optical system， through the interaction between the copper tube and the object to be welded， a highly concentrated heat source area can be formed at the place to be welded in a very short time. The heat energy makes theea to be welded melt， cool and crystallize to form a solid welding spot and weld seam.
일 중후반， 비록 좋은 소식이 있지만， 예를 들면 선물 가격 상승과 무강 생산 제한 정책이 증가한다;한 지역에서는 재고 수준이 매우 높기 때문에 무역상들이 가격을 인상할 의사가 없으며， 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，Ban La sada 핀란드청동판， 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.
After : on October ， continue to implement the measures of stopping and limiting production specified in TZBZ [] No. document. All sintering machines and shaft furnaces using wet desulphurization in iron and steel enterprises in the city were shut down， and sintering machines using semi dry desulphurization continued to be shut down for %. The access of vehicles is alicted. The port collection and distribution vehicles are prohibited from entering and leaving the port area. The citys steel， coking， electric power， cement， chemical and other key vehicle enterprises are not allowed to transport vehicles into and out of the plant. After : on October ， the vehicle enterprises in the above industries will implement % of the peak load shifting emission reduction measures. It is estimated that the average daily consumption of sintering powder in Tangshan will be more than yuan， and the purchase of iron ore may still maintain a small amount of prudence. In addition， due to the influence of industrial users "coal to gas"， the recent performance of coke is weak. Therefore， in terms of steel plant production， the support of raw materials is weak.
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.
However， it is difficult to change this situation too much in the short term. It is expected that the domestic strip steel price will mainly rise in the short term. It is reported that in order to pursue profits， Tangshan Iron and Steel Group Co.， Ltd. is currently increasing the supply of hot coils. It does not rule out that more steel mills in the future are inclined to one end of the plate in pursuit of profits， or to lay hidden dangers for the decline. As far as tomorrow is concerned， the price may still maintain a narrow range of shock operation pattern.
동관 표면의 동록색은 대기 중의 황화물과 반응하여 형성된 것이다.
구리 표면을 다시 밝게 만들고 싶다면 구리 점 용액으로 광택을 낼 수 있다.그것은 구리 표면을 더 밝게 할 뿐만 아니라 구리 표면의 녹과 산화층을 빠르게 제거하고 구리 자체의 광택을 회복 할 수 있습니다.
결론 을 검증 하 다구리 재료의 저장 방법에 대해 말하자면， 우리는 우리가 구입한 구리 제품을 잘 보관하고， 구리의 사용 수명을 연장하며， 그 성능을 확보하여 불필요한 손실을 피해야 한다.
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.
월 일， 창주 동봉시장의 가격은 평온했다.Lange 철강 회사의 모니터링 데이터에 따르면;s 클라우드 비즈니스 플랫폼， 린이가 생산한 * mm 냉발강 시장 가격은 위안， 린이 * mm 시장 가격은 위안， 건룡 * mm 시장 가격은 위안， 원화 * mm 가격은 위안， 펑넝 * mm 시장 가격은 위안， 바오강 * mm 시장 가격은 위안，거대 에너지 열팽창 * mm의 시장 가격은 위안이다.
On October ， at the end of September ，Ban La sada 핀란드빨간 동봉， Shandong Province had resolved the overcapacity of million tons of pig iron and million tons of crude steel，Ban La sada 핀란드6061 알루미늄 튜브， and all the de capacity equipment had been shut down and withdrawn. On October ， the Development and Reform Commission of Handan City released the Plan for Handan City to Eliminate Excess Iron and Steel Capacity. Statistics show that the iron making capacity of Handan in was million tons and the steel making capacity was million tons.
어떤 곳 에서For small diameter pipes， when using filler metal， the length of filler metal is allowed to be equal to the diameter of the pipe， which is enough to fill the weld crater. One of the five major application fields of red coppr plate T， red copper bar and red copper tube: copper is the most widely used and used in the electrical and electronic industries， accounting for more than half of the total consumption. Used for various cables and wires， motors and transformers， switches and printed circuit boards; In the manufacture of machinery and transport vehicles， it is used to manufacture industrial valves and accessories instruments， sliding bearings， molds， heat exchangers， pumps， etc.
일반적으로 철사는 준설에 쓸 수 있다.막힘이 심할 때는 부식성 물질을 사용하여 막힌 물건을 부식한 다음 그에 상응하는 세척을 해야 한다.
화염을 제거하다.충전 금속이 녹지 않으면 커넥터를 계속 가열하고 다시 시도하십시오.모세관 효과에 따라 녹아내린 필러 금속은 케이스 포트에 완전한 필러 금속 고리가 나타날 때까지 케이스 포트로 빨려 들어간다. 화염을 제거한다. 특히 화염이 필러 금속에 직접 닿지 않도록 주의한다.이음매의 열이 충전금속을 녹였을 거예요.구리 파이프를 청소하기 위해 용접제는 일정한 부식성을 가지고 정 용접 후에 청소해야 한다.소위 After the pipe is cleaned， the welding flux and flux shall be immediately applied to the interface and the bayonet clearance. Sufficient flux shall be thinly coated on the mating surface and assembled immediately， so that dust and dirt will not pollute the capillary gap. The copper tube shall be heated and welded first， and then the joint shall be heated until the heated part turns dark red. At this time， when the filler metal contacts the tube， the filler metal shall melt.
