溶接工具のノズルは熱が集中しすぎないように小さすぎてはいけません.
材料と総コスト，安定性，パフォーマンスを節約し，メンテナンスを節約できます.
ラウブRe treat the water quality.
銅の表面を再び明るくしたい場合は，銅点溶液で研磨することができます.銅表面をより明るくするだけでなく，銅表面の鉄さびや酸化層を素早く除去し，銅自体の光沢を回復することができます.
一時的な刺青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.
銅材料の貯蔵方法については，私たちが購入した銅製品を適切に保管し，銅の使用寿命を延長し，不要な損失を避けるべきです.
In consideration of the above factors， more and more steel plants have stopped production since October， and the production limit in Wuan and Tangshan heating seasons has been advanced. In addition， the formal implementation of production limit in "+" urban heating seasons after November by steel enterprises， the demand for iron ore in the future is likely to further deteriorate. The iron ore inventory of the steel plant is relatively high， and the willingness to further replenish the inventory is not strong. In terms of supply， the fourth quarter is generally the peak period for the shipment of imported ores. Although the production of domestic mines has been reduced due to environmental protection， the quantity of * * * is relatively limited. In general， the short-term iron ore market may lack upward momentum.
銅管の特徴は，水道管，熱供給管，冷凍管を取り付けることの第選択である.
銅管の溶接順序は加熱する前に，溶接する位置にフラックスを塗布する.
銅管床暖房の利点と適用範囲現在，現代の生活の質の象徴でもある.地熱放熱器を使用する住宅，公共建築，スポーツ施設，工業施設などの場所が増えており，これは地熱の重要な構成部分である.銅の耐食性のため，多くの場所で放熱器の主な材料として銅管が選択されている.
ターゲットビレットについて：時分，昌黎の部のビレットは本減少し，現在の炭素側ビレットは交付され，税込み元である.中国共産党第回全国代表大会後，市場は環境生産制限の不確実性に疑問を持ち，より明確な方向を待っている.そのため，この段階では，先物も現金も，方的な市場も，明確な上昇・下落の構図もないことがわかる.sクラウドビジネスプラットフォーム，原稿発行時まで，ラウブ12 CR 1 MOV合金板，天津優溶接生産ライン：製鉄所報告：栄成#元/トン， B 元/トン，江#-#~天津元/トン，新集オーソン#から貨物価格元/トンB鋼から貨物価格元/トン，済源＃元／トン，B鋼元／トン，富倫#元/トン威鋼＃元／トンB鋼元／トン.
放置する時，異なる成分によって単独で保管し，ラウブおうどうばん，混合してはならない.銅の表面には電解質がある可能性があるため，反応が起こり，特にゴムなどの他の材料と反応し，大きな影響を与えることがあります.
The simplest way is to use copper cleaner. Brass， red copper， etc. can be used. Oil stains， fingerprints， oxide layers， etc. on the surface can be cleaned with copper cleaner first.
Hygiene and health: various modifiers additives， additives and other chemical components of plastic pipes in copper pipes.
新製品見通しが楽観的で資源が逼迫しているため，部の製鉄所ではしばらく受注しないという.遼寧省の製鉄所は鋼材購入の意欲を高めた.製鉄所の納品が好調で原材料価格が上昇したため，鉄鉱石価格が上昇した.製鉄所は鉄鋼の生産意欲が高いため，鋳鉄資源が少なく，価格も上昇した.唐山の部の製鉄所では製錬用に少量の鋼材が調達され始めており，多くの製鉄所ではまだ様子見が続いている.コスト増加と需要の逐次放出を背景に，銑鉄市場は好調で，短期的には引き続き力強い運行が見込まれている.
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， 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， 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 to prevent local overheating. Stainless steel pipe or iron pipe should be used for heater， 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， due to the amount of oil contamination， light and heavy rust， 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， high pressure hot water 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， 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， 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， 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: ラウブ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. 現在の全体的な価格差を考慮すると今日も現地の銅棒価格は引き続き高位に上昇しているが，現地価格は依然として東北と華中地区の価格差との優位性を持っている.生産制限の影響で現地の後続商品量が少ないため華東地区以外の地域では明らかな後続の動きは見られず，現地の在庫圧力はさらに低下し，銅棒の価格支持は依然として強い.しかし，現在，国内の不動産規制は引き締められている.市場&## ;市場の将来の需要に対する予想は弱まっている.今日，瀋陽の銅棒の市場価格は安定しており，出荷量はよくない. 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， 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)， 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， 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.
