[] Welding process of copper pipe Clean the end and seven ports of steel pipe with steel wool. Do not use abrasive cloth or abrasive paper to clean， because it will affect the clean interface and result in poor welding effect.
The copper bar market declined steadily this week， with a decline of - yuan. Due to low pig iron inventory， some steel mills in Jiangxi have resumed purchasing recently， but the purchasing volume is not large. The purchase price of pig iron in Yunnan steel plants was slightly increased to ensure the purchase volume due to the low purchase price of pig iron in the early stage. Recently， the steel market has been in shock and adjustment， and the merchants are unstable. Steel mills in Hebei， Tianjin and other regions have stopped producing pig iron for steelmaking. Now，만 젤 라T2 동갈비， it is mainly expected to make inquiries. However， due to the lower price of raw materials， the price of iron mills has been lowered.
만 젤 라합격된 구리 원료를 사용하여 생산하고， 불순물의 부식을 줄이고， 구리 파이프의 사용 수명을 연장한다.
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， 현지의 재고 압력은 더욱 낮아질 것이며， 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.
트 리 히 드 록 시 페놀용접할 때는 모세관 간격을 채우기 위해 충분한 필러 금속을 추가하기만 하면 됩니다.너무 많은 채우기 금속은 조인트 하단에만 구를 형성하거나 파이프로 유입됩니다.
중점 분야의 홍동 재고는 지속적으로 상승하고 있지만 전반적인 압력은 크지 않다.현재 주요 배송센터의 전체 재고 상황을 보면 Wu;안， 강음과 락종， 재고수준은 상대적으로 온화하고 시장압력은 상대적으로 작다.Wu 에서수치가 보여준데 따르면 월 일까지 오시 중후판의 총창고보유량，an은 만 톤에 육박하여 매주 톤이 증가한다.월 하순에는 연내에 만t이 떨어져 설 이후 최고 수준보다 만t이 떨어지고 주 연속 상승했다.ov로 말하자면수량은 상대적으로 온화한 수준을 유지한다고 말해야 한다.
일반적으로 산소아세틸렌을 기원으로 사용하고 액화석유가스 용접도구를 사용하여 가열한다.용접 도구의 용접봉은 이음매를 향하고 계속해서 전체 이음매를 가열해야 한다.이것은 과도한 국부 가열을 피할 것이다.
동판， 동봉， 동관의 다섯 가지 주요 응용 분야 중 다섯 가지: 동은 의약에 쓰인다.세기 년대에 중국 의학 발명가 류퉁칭과 류퉁러는 구리가 매우 강한 s를 가지고 있음을 발견하고 해당하는 &를 개발하는 데 성공했다.quot；암 억제 및;“；，이것은 머지않아 성공할 것이다.
Four in one formula and process conditions Preparation of solution Take formula as an example: mix the calculated amount of water for zinc oxide into a paste， slowly add it into the calculated amount of phosphoric acid under stirring until it is completely dissolved， then add zinc nitrate and tartaric acid， dilute it with water to / of the total volume， add sodium alkosulfonate and OP emulsion， and stir to make it completely dissolved. Then add chromium dihydrogen phosphate dissolved in dilute phosphoric acid， and add titanium sulfate. After all materials are added， dilute them to the total volume， stir them to make the solution even， cool them to room temperature， put a large amount of iron filings in the solution， and soak them for - days to make them contain enough ferrous ions. When the content of ferrous ion reaches above g/L， adjust the free acidity and total acidity of the solution to the specified value， and then the solution can be used at elevated temperature. When the ferrous ion reaches the above value， the phosphating speed is fast， the solution is stable， and the phosphating film is fine and dense. During operation， attention shall be paid to controlling the temperature. If the temperature is higher than ℃， the degreasing technology of degreased copper pipe. How to make degreased copper pipe? The process flow of degreased copper tube? What are the characteristics of degreased copper tubes? Use of degreased copper tube? There are too many questions. Lets solve them at once. Everyone knows the copper tube. Nitrate reacts easily. The heater should be installed on the two walls of the tank， not on the bottom of the tank， to prevent local overheating. Stainless steel pipe or iron pipe should be used for heater， and lead pipe or copper pipe should not be used to avoid contamination of solution by impurities. What is degreased copper pipipe? "The advantages of degreased copper pipes comprehensive treatment of grease rust removal， phosphating and passivation are described. This comprehensive treatment process can simplify the process reduce the work area， save equipment costs， shorten working hours， improve labor productivity and reduce costs. This method can only be used in the occasions where the requirements for coating quality are not high.However， in actual production， the consumption rate of each component in the solution is different， so attention should be paid to adjustment and control to maintain its due role. What is the degreasing copper tube? "I have roughly known the degreasing methods of degreasing copper tubes: solvent degreasing alkali degreasing， ultrasonic degreasing， electrolytic degreasing， etc. Solvent degreasing: use degreasing solvent to dissolve the oil on the surface of red copper pipe， collect it together into a container， volatilize， collect and reuse the volatile solvent， and separate the pollutants from the circulation system. This method was used in the early stage， which has problems such as low cleaning efficiency， difficult maintenance， and environmental pollution. In recent years， many kinds of surfactants have been developed. The lipophilic group of surfactants can help to dissolve oil in water to realize degreasing. Alkali degreasing: Alkali degreasing is a complex chemical physical process. In addition to saponification reaction， there are sometimes emulsion reaction and adsorption reaction. Typical saponification reaction formula is as follows: RCOOH+NaOHRCOONa+HO At present， industrial degreasers are composite reagents， and the solution temperature is ℃. Ultrasonic degreasing: ultrasonic degreasing is to degrease the upper and lower surfaces of red copper pipes by using ultrasonic to generate high-speed vibration， whichtly used for monomer and irregular shaped components. High pressure hot water degreasing: without degreasing agent， heat the deionized water to ℃， and spray it directly to the surface of red copper pipe for cleaning under the pressure of about bar. Electrolytic degreasing: electrolytic degreasing， using the red copper tube as the cathode to generate H， which will scour the oil stain on the surface of the red copper tube; The O generated by the anode is in atomic state and has strong oxidation capacity， which can improve the degreasing effect. Therefore， the problem that alkali spraying and brushing cannot fully contact the micro concave part of the surface is solved. Generally，만 젤 라304 스테인리스 강판， the cleaning effect of alkali degreaser spraying or high-pressure hot water degreasing plus brushing can meet the requirements of most users. If there are special requirements， multiple methods can be used together. According to practical experience， the degreasing effect of various degreasing methods (one side of the copper tube) is as follows: alkali degreaser spray plus brushing: mg/m alkali degreaser brushing plus electrolytic degreasing: mg/m ultrasonic wave: mg/m high-pressure hot water degreasing: 시장가 격Disadvantages of copper pipe As far as copper pipe is concerned， high production cost and high price are its biggest disadvantages. Compared with other pipe fittings， the cost of copper pipe is much higher， and the connection at the copper pipe interface requires high construction technology level. To sum up， the market in Northeast China is generally pessimistic based on the medium and long-term policies and the general environment， as well as the current inventory level in Shenyang. The low inventory level of copper platoon makes the whole market lack of motivation. The copper bar market in this city has stopped this year and it is hard to improve in the short and medium term. On the whole， the market price of Shenyang copper bars may be stable tomorrow. 동관 세 가지 생산 방법의 복합법도 이 방법의 하이테크 생산 방법이다.그것은 불순물을 함유한 구리 재료이다.전기 화학 반응을 통해 이러한 구리 재료 구리 합금 및 복합 구리 재료를 함께 넣어 나노 결정 구리 재료를 만든 다음 그 재료를 정제하여 구리 파이프 재료를 만듭니다.
[] 구리 파이프 용접 공정은 와이어 코튼으로 강관의 끝과 개의 포트를 청소합니다.청결 인터페이스에 영향을 주어 용접 효과가 떨어지기 때문에 사포나 사포를 사용하여 청결하지 마십시오.
관리 하 다.At present， the fundamentals faced by the domestic copper bar market are still mixed. On the one hand， the market supply is expected to shrink， but on the other hand， and the markets expectation of future demand is pessimistic. In the short term， domestic steel prices will enter the operating track of range consolidation. To sum up， considering the current situation of demand and inventory in the steel market， it is difficult for the steel market to make a breakthrough. As the th National Congress of the Communist of China is approaching， environmental protection phenomena such as steel mills are still going on， and black series speculation is still taking place. But personally， the fluuation range of the market in this region is limited， and businesses can operate flexibly on a short-term basis， and the shipment transaction is * * *.
Copper pipes of different models shall be stacked separately.
위생과 건강: 동관에 있는 플라스틱 관의 각종 변성제， 첨가제 및 기타 화학 성분.
만 젤 라단점: 조직이 느슨하고 고압에 강하기 때문에 이 파이프는 소형 에어컨 동봉 생산에만 사용된다.
철광석 선물 주력은 에서 로 마감했다. 이날 종가는 ***， **， 결제가 ， 거래량 ，만 젤 라빨간 동봉， 보유량 를 포함해 전 거래일과 같았다.일내 거래g 거래량은 전 거래일보다 만 명， 보유량은 전 거래일보다 만 명 줄었다.일 연속 하향 조정 후 오늘 장중 하단에서 반등하였으나， 그 후 다시 반등하여 보합으로 마감하였다.
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.
