发表人:张春青时间:2018-07-17
耐腐合金材料选用中英文对照表:
序号 | 牌号 | 代号 | 适用介质 |
1 | F30%CrMo | Cr30 | 是含固量达35%腐蚀性介质的理想选材,如磷酸萃取料将等类似腐蚀磨蚀性介质,目前居国内领先水平。 |
2 | 1Cr18Ni9Ti | 18-8 | 碱液、醋酸、稀硝酸。 |
3 | 00Cr20Ni25Mo4 | UB6 | 含一定数量的Cl-F- SO24-磷酸、硫酸及高温醋酸抗点蚀和晶间腐蚀。 |
4 | 00Cr14NiSi4 | C4 | 全浓度硝酸、特别适用浓硝酸、事目前浓硝酸用钢综合性最好的铸材。 |
5 | 0Cr12Ni25Mo3Cu3Si2Nb | 941 | 全浓度常温硫酸、特别适用100℃以下的中等浓度(50%)硫酸。 |
6 | 00Cr10Ni20Mo1.5Si6Cu | SS920 | 高温浓硫酸,t≤130℃,浓度93-98% |
7 | 0Cr21Ni32Mo2Cu3 | 20#合金 | 高温浓硫酸,t≤130℃,浓度为40%左右。 |
8 | Z180C13 | DF2 | 含固量达70%磨蚀性介质。 |
9 | 0Cr26Ni5Mo2Cu3 | CD-4MCu | 含固稀硫酸,磷酸,耐磨,耐蚀。 |
10 | 0Cr24Ni20Mo2Cu3 | K合金 | ≤60℃各种浓度的硫酸。 |
11 | 00Cr25Ni6Mo2 | MM-4 | 硝酸磷肥专用钢。 |
12 | 0Cr18Ni9 | 304 | 稀硝酸,有机酸。 |
13 | 00Cr18Ni9 | 304L | 稀硝酸,有机酸,抗晶间腐蚀。 |
14 | 0Cr18Ni12Mo2Ti | Mo2Ti | 稀硝酸,磷酸,有机酸。 |
15 | 0Cr18Ni12Mo2 | 316 | 稀硝酸,磷酸,有机酸。 |
16 | 00Cr18Ni12Mo2 | 316L | 稀硝酸,磷酸,有机酸,抗晶间腐蚀。 |
17 | 0Cr20Ni25Mo5Cu | 904 | 70℃以下各种浓度硫酸,抗晶间腐蚀。 |
18 | 0Cr30Ni42Mo3Cu2 | 804 | 烧碱蒸发及904仍不抗蚀等。904仍不抗蚀介质。 |
19 | 0Cr20Ni42Mo3Cu2 | 824 | 904仍不抗蚀介质 |
20 | 0Cr18Ni5Mo5 | NH55 | 海水。 |
21 | 0Cr20Ni33Mo3Cu3Nb | 20Cb3 | 各种浓度的硫酸腐蚀。 |
22 | 0Cr24Ni33Mo2.5Cu3Ti | 3#4# | 含20%固相的稀硫酸磨损腐蚀。 |
23 | 0Cr16Ni4Cu3Nb | CB-7Cu | 砂浆磨蚀,钾肥生产时卤水的磨、腐蚀。 |
24 | 00Cr30Ni40Mo4Cu3 | Lewmet55 | 125℃高温发烟硫酸腐蚀。 |
25 | 00Ni65Cu28 | Monel | 氢氟酸、硅氟酸、高温烧碱。 |
26 | 00Ni65Mo28 | 哈氏B | 全浓度盐酸。 |
27 | 塑料FEP | F46 | 各种酸、碱、盐、氧化剂等介质。 |
28 | UHMWPE | 80℃以下含悬浮固体颗粒的酸、碱、盐介质、耐磨损。 | |
29 | Fluoride alloy | 180℃以下强腐蚀介质。 |
No. | Material rating number | Code | Suitable media |
1 | F30%CrMo | Cr30 | Leading the pack in the domestic market, it is an ideal material for corrosive media containing up to 35% of solid., such as phosphoric acid extract slurry or similar corrosive medium. |
2 | 1Cr18Ni9Ti | 18-8 | Alkali liquid, acetic acid, diluted nitric acid |
3 | 00Cr20Ni25Mo4 | UB6 | Phosphoric acid, sulfuric acid, and high temperature acetic acid containing certain amount of CL-,F-SO24-. Resistant to pitting and inter granular corrosion. |
4 | 00Cr14NiSi4 | C4 | Full concentration nitric acid, especially concentrated nitric acid. It is the best cast steel in comprehensive performance for concentrated nitric acid available at present. |
5 | 0Cr12Ni25Mo3Cu3Si2Nb | 941 | Full concentration constant temperature sulfuric acid especially middle concentrated (ca.50%) sulfuric acid below 100℃ |
6 | 00Cr10Ni20Mo1.5Si6Cu | SS920 | High temperature sulfuric acid, t≤130℃,concentration 93-98% |
7 | 0Cr21Ni32Mo2Cu3 | 20#合金 | High temperature sulfuric acid, t≤130℃, concentration ca.40% |
8 | Z180C13 | DF2 | Corrosive medium containing up to 70% of solid. |
9 | 0Cr26Ni5Mo2Cu3 | CD-4MCu | Suitable for diluted sulfuric acid and phosphoric acid containing solid. It is anti-abrasive and anti-corrosive. |
10 | 0Cr24Ni20Mo2Cu3 | K合金 | Sulfuric acid of various concentrations at≤60℃ |
11 | 00Cr25Ni6Mo2 | MM-4 | Special steel for nitric acid and phosphoric fertilizer. |
12 | 0Cr18Ni9 | 304 | Diluted nitric acid and organic acids. |
13 | 00Cr18Ni9 | 304L | Diluted nitric acid and organic acids. Resistant to inter granular corrosion. |
14 | 0Cr18Ni12Mo2Ti | Mo2Ti | Diluted nitric acid, phosphoric acid, and organic acids. |
15 | 0Cr18Ni12Mo2 | 316 | Diluted nitric acid, phosphoric acid, and organic acids. |
16 | 00Cr18Ni12Mo2 | 316L | Diluted nitric acid, phosphoric acid, and organic acids. Resistant to inter granular corrosion. |
17 | 0Cr20Ni25Mo5Cu2 | 904 | Sulfuric acid of various concentrations at ≤70℃.Resistant to inter granular corrosion. |
18 | 0Cr30Ni42Mo3Cu2 | 804 | Evaporation of caustic soda, and those media whose corrosiveness is beyond the capability of 904. |
19 | 0Cr20Ni42Mo3Cu2 | 824 | Those media whose corrosiveness is beyond the capability of 904. |
20 | 0Cr18Ni5Mo5 | NH55 | Sea water |
21 | 0Cr20Ni33Mo3Cu3Nb | 20Cb3 | Corrosion of sulfuric acid of various concentrations. |
22 | 0Cr24Ni33Mo2.5Cu3Ti | 3#4# | Abrasion and corrosion of diluted sulfuric acid containing 20% solid phase. |
23 | 0Cr16Ni4Cu3Nb | CB-7Cu | Corrosion of sand slurry, abrasion and corrosion of halogen liquid in the production of potassium fertilizer. |
24 | 00Cr30Ni40Mo4Cu3 | Lewmet55 | Corrosion of 125℃ high temperature fuming sulfuric acid. |
25 | 00Ni65Cu28 | Monel | Hydrofluoric acid, silicofluoric acid, high temperature caustic soda. |
26 | 00Ni65Mo28 | 哈氏B | Full concentration hydrochloric acid. |
27 | 塑料FEP | F46 | Various acids, alkalis, salts, oxidants, etc. |
28 | UHMWPE | Acids, alkalis, and salts containing suspended solid granules below 80℃. | |
29 | Fluoride alloy | Strong corrosive media below 180℃. |
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答:定位器主要是用于阀门开关和调节时对阀门开度大小的控制和确定位置
答:止回阀的主要工作原理是当止回阀出口出现介质倒流或者压力大于进口时,自动关闭,防止介质倒流的管道阀门装置。