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.
오늘 오전 개장할 때 정주 동배시장의 가격은 기본적으로 안정되였다.랭거윈상무플랫폼의 감시측정수치에 따르면 * mm 림기동봉의 현재 시장가격은 원 (톤가격， 이하 같음) 이고 * mm 동봉은 원이며 * mm 동봉 하남동봉은 원이다.
키 사란구리 파이프의 용접 순서는 가열하기 전에 용접할 위치에 용접제를 바른다.
구리 표면의 부식이 경미한 것으로 발견되면 리넨 동선으로 지울 수 있지만 기름을 발라 방부하는 것은 권장되지 않는다.
사마 시This 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 rising of billets at the weekend drove the market up in a wave， 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， and the market wait-and-see mood is getting stronger. But when winter comes， 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.
압출법: 본 생산 방법은 정련 후 구리 주괴를 주조하고 차 가열 후 대형 압출기로 구리 파이프를 압출한다.
자동관의 장점 내구성: 구리는 안정적인 화학재산을 가지고 있으며 내한， 내열， 내압， 내부식과 내화를 일체화하여 서로 다른 환경에서 장기적으로 사용할 수 있다.
장 & # ;우리는 동관 재료의 장점을 상세히 서술했다: 동관 지온은 뜨거운 물을 열매체로 이용하여 동관 가열관에서 순환하고 바닥을 가열하며，o 잘 안 긁혀요.따라서 누설은 쉽지 않다.셋고온에 강하고 고압에 강하며 어떤 일반 플라스틱 파이프에 비해도.동관 바닥은 따뜻하고 고온과 고압에 강하다.사수명이 길다.다섯
표준화 생산.
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.
어느 집 이 좋아요?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，키 사란12cr1mov 합금 원강，키 사란T2 동갈비， 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.
위생과 건강: 동관에 있는 플라스틱 관의 각종 변성제， 첨가제， 첨가제 및 기타 화학 성분.
적동 재고는 지속적인 하락세를 끝낼 수 있다.철강 기업의 생산 제한 강도가 높아지고 수요 압력이 커짐에 따라 철광석 항구의 재고의 지속적인 감소는 끝날 수 있다.또한 **의 최신 통계에 따르면 제철소의 철광석 수입 가용일수는 일로 국경절 전보다 하루 줄어 사상 최고치를 기록했다.제철소는 현재 철광석 재고가 기본적으로 생산 요구를 만족시킨다고 밝혔다.향후 감산 및년 월말까지 산동성은 이미 만톤의 생철과 만톤의 조강의 생산능력과잉문제를 해결했으며 모든 생산능력제거설비는 이미 페쇄되고 퇴출되였다.월 일， 한단시발전개혁위원회는"년 한단시 과잉철강생산능력제거계획"을 발표했다.통계수치가 보여준데 따르면 년 한단의 제철능력은 만톤이고 제강능력은 만톤이다.
In terms of steel billets: at :， some steel billets in Changli were reduced by ， and the current carbon square billets were delivered with tax of yuan. After the th National Congress of the Communist of China， the market had doubts about the uncertainty of environmental production restriction and was still waiting for a clearer direction. Therefore， there was no unilateral market for either futures or cash， and there was no definite pattern of ups and downs.According to the monitoring data of Lange Iron and Steels cloud business platform， as of the time of publication， Tianjin Youwelded Line: the steel mill reported: Rongcheng # yuan/ton， B yuan/ton; Jiujiang # - # to Tianjin yuan/ton; The arrival price of Xinji Aosen # is yuan/ton， and that of B steel is yuan/ton; Jiyuan # yuan/ton， B steel yuan/ton; Fulen # yuan/ton; Weigang # yuan/ton， 일반 금속의 고강도를 가지고 있다 (동관을 냉발시키는 강도는 같은 경도를 가진 강관과 같다ess）；그것은 일반 금속보다 쉽게 구부러지고 강인성과 높은 확장성을 가지고 있으며 진동， 충격 및 동팽창에 강한 재산을 가지고 있습니다.
Reasons for copper pipe corrosion: Air pollution.
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， 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.
키 사란경동관은 신축이나 압출 후 인공 처리를 거치지 않아 자연적으로 형성될 수 있다.이제 구리 파이프의 조직 형태가 가득 찼습니다.이런 동관은 갈라지기 쉬워서 구부리기에 적합하지 않다.그러므로 경동관은 일반적으로 곧다.
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，키 사란310s 스테인리스 스틸 디스크 튜브， 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.
[] 구리 파이프 용접 공정은 와이어 코튼으로 강관의 끝과 개의 포트를 청소합니다.청결 인터페이스에 영향을 주어 용접 효과가 떨어지기 때문에 사포나 사포를 사용하여 청결하지 마십시오.