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.
衛生と健康：銅管中のプラスチック管の各種改質剤，添加剤及びその他の化学成分.
モンユワ銅管が加熱され，フラックスが溶融して液体になると，すぐに予熱された溶接棒を溶接点に置く.電極が溶融し始めると，つの管間の隙間に半田が流入するまで火炎ノズルを前後に移動するe火炎，半田を溶接点に接触させ，数秒後に除去する.つのパイプの間にまだ隙間があることを疑ったり発見したりした場合.火炎ノズルを点で連続的に移動させるために再加熱することができます.少量の半田を添加することができます.
For small diameter pipes， when using filler metal， the length of filler metal is allowed to be equal to the diameter of the pipe， 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， 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.
カシェウまた，腐食されにくく，さまざまな環境に適応できます.低温と高温で正常に使用できるため，銅管中の元素の配列を変更するために高温炉で焼成することを意味する.しかしすなわち硬銅管と比較してアニールプロセスが増加した.銅管のアニールは，アニールすると銅管が柔らかくなり，曲げやすくなります.このようにして生産された銅管を軟銅管と呼ぶ.
Copper tube is also called copper tube nonferrous metal tube. It is a pressed and drawn seamless pipe， characterized by light weight good thermal conductivity， high low-temperature strength and corrosion resistance. Because of these excellent properties of copper tubes， the use of copper tubes is very common. What are the differences between hard copper tubes and soft copper tubes in the use process? What are the differences between the two in terms of specific applications?
Remove the flame. If the filler metal does not melt， continue to heat the joint and try again. The melted filler metal is sucked into the casing port according to the capillary effect until a complete filler metal ring appears on the casing port. Remove the flame Pay special attention not to let the flame directly contact the filler metal. It should be the heat at the joint that melts the filler metal. In order to clean the copper pipe， the welding flux must have a degree of corrosivity， and shall be cleaned after brazing. The so-called "self-cleaning" fluxes are generally not recommended because of their corrosivity.
これらの問題を解決するために，シリコン含有ワイヤは通常，溶融池の表面に緻密なシリコン膜を形成するので，亜鉛の蒸発を阻害し，水素の侵入を防ぐことができるので，溶接に使用されています.
まず，倉庫を建設しなければなりません.倉庫内の温度は通常-°に維持しなければならない.C，湿度は正常でなければならない.部屋は換気を保つべきだ.
総コストSafe and reliable: copper pipe combines the advantages of metal pipe and non-metal pipe. It is harder than plastic pipes and has the high strength of ordinary metals (the strength of cold drawn copper pipes is equivalent to that of steel pipes with the same waess); It is also easier to bend than ordinary metals， has good toughness and high ductility， and has excellent anti vibration， anti impact and anti frost expansion properties.
Disadvantages: Due to loose tissue and high pressure resistance， the pipe is only used to produce small air conditioning copper rods.
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， according to the new statistics of * *， the available days of imported iron ore of steel mills are days， 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.
も簡単な方法は銅洗浄剤を使用することです.黄銅，紫銅，青銅などを使用することができます.表面の油汚れ，指紋，酸化層などはまず銅洗浄剤で洗浄することができる.
信用保証銅板，銅棒，モンユワどうたい，銅管のつの主要な応用分野のうちつ：銅は建築業で各種のパイプ，パイプ，装飾装置として使用されている.
After welding， it can be annealed at ~ ℃ to prevent "self cracking" by stress.
銅管は非鉄金属管であり，プレスと延伸のシームレス管である.銅管は良好な熱伝導性を持ち，頑丈で耐食性がある.環境温度に比べて割れないため，すべての住宅商品住宅に水道管，熱供給管，冷房管を設置することが現代の請負業者の第選択となっている.
モンユワCopper tube is a kind of nonferrous metal tube， which is pressed and drawn seamless tube. The copper pipe has good thermal conductivity， and is solid and corrosion resistant. It will not crack when compared with the ambient temperature， so it becomes the first choice for modern contractors to install the water pipe， heat supply pipe and refrigeration pipe in all residential commercial houses.
Later， Mexican scientists also found that copper has a . Recently， British researchers found that copper has a strong bactericidal effect. It is believed that in the near future， copper will make great contributions to improving human health. Copper plate T is named after its purple color. It is not necessarily pure copper sometimes it also involves a few deoxidizing elements or other elements to improve raw materials and s， so it is also included in copper alloys. The processed materials of Chinese cor plate can be divided into four categories according to the composition: ordinary copper plate (T， T， T， T， oxygen free copper plate (TU， TU and high-purity， vacuum oxygen free copper)，モンユワ304ステンレスパイプ， deoxidized copper plate (TUP， TUMn)， and special copper plate (arsenic copper， tellurium copper， silver copper) with a few alloy elements added. The conductivity and thermal conductivity of copper plate are second only to silver，モンユワ316 Lステンレスパイプ， and are widely used to manufacture conductive and thermal conductive devices. The red copper belt has outstanding corrosion resistance in the atmosphere， sea water， some non oxidizing acids alkalis， salt solutions and a variety of organic acids (aic acid， citric acid)， and is used in the chemical industry. In addition， the red copper plate has outstanding weldability and can be made into various semi products and products through cold and thermoplastic processing. In the s， the output value of copper plate exceeded that of other copper alloys.
It can be wrapped with moisture-proof paper for moisture-proof protection. It can also prevent oxidation to a certain extent. If cracks or serious corrosion are found， they must be isolated.