| ²é¿´: 468 | »Ø¸´: 3 | ||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | ||
lishengyinÒø³æ (СÓÐÃûÆø)
|
[ÇóÖú]
corrosiion
|
|
| Corrosion of iron is inhibited by coating it with numerous substances, such as paint, an aluminum powder gilt, tin, or organic tarry substances or by galvanizing iron with zinc. Alloying iron with metals such as nickel or chromium yields a less corrosive steel. "Cathodic protection" of iron for lessened corrosion is also practiced. For some pipelines and standpipes zinc or magnesium rods in the ground with a wire connecting them to an iron object have the following effect: with soil moisture acting as an electrolyte for a Fe ¡ª Zn couple the Fe is lessened in its tendency to become Fe2+. It acts as a cathode rather than an anode. |
» ²ÂÄãϲ»¶
085600²ÄÁÏÓ뻯¹¤301·ÖÇóµ÷¼ÁԺУ
ÒѾÓÐ4È˻ظ´
²ÄÁÏÓ뻯¹¤371Çóµ÷¼Á
ÒѾÓÐ14È˻ظ´
336²ÄÁÏÓ뻯¹¤085600Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
²ÄÁÏ334Çóµ÷¼Á
ÒѾÓÐ18È˻ظ´
331Çóµ÷¼Á
ÒѾÓÐ8È˻ظ´
332Çóµ÷¼Á
ÒѾÓÐ17È˻ظ´
Ò»Ö¾Ô¸ÄϾ©º½¿Õº½Ìì´óѧ ²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á
ÒѾÓÐ4È˻ظ´
²ÄÁÏר˶322
ÒѾÓÐ7È˻ظ´
Çóµ÷¼Á
ÒѾÓÐ20È˻ظ´
Ò»Ö¾Ô¸Ö£ÖÝ´óѧ085600Çóµ÷¼Á
ÒѾÓÐ20È˻ظ´
wlh130392950
ͳæ (³õÈëÎÄ̳)
- ·ÒëEPI: 1
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 424.9
- ºì»¨: 2
- Ìû×Ó: 48
- ÔÚÏß: 7.8Сʱ
- ³æºÅ: 1867059
- ×¢²á: 2012-06-22
- רҵ: ÎÄÒÕÃÀѧ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
phu_grassman: ½ð±Ò+2, thanks 2012-11-26 11:35:05
Carena: ½ð±Ò+5, ·ÒëEPI+1, ´ú·¢½ð±Ò 2012-11-26 14:41:01
phu_grassman: ½ð±Ò+2, thanks 2012-11-26 11:35:05
Carena: ½ð±Ò+5, ·ÒëEPI+1, ´ú·¢½ð±Ò 2012-11-26 14:41:01
| ÒÖÖÆÌúµÄ¸¯Ê´ÊÇͨ¹ý¶ÔËüÌí¼ÓÍ¿²ãÎïÖÊ£¬ÈçÍ¿ÁÏ£¬Ò»ÖÖÂÁ·ÛÄ©µÄ¶Æ½ð£¬¶ÆÎý£¬»òÓлú½¹ÓÍ×´ÎïÖÊ£¬»ò¶ÔÌú½øÐÐµç¶ÆÐ¿¡£ÀûÓÃÄø»ò¸õ¶ÔÌú½øÐкϽ𻯴¦ÀíÄܲúÉú²»Ðâ¸Ö¡£Îª¼õÉÙ¸¯Ê´£¬ÌúµÄ¡°Òõ¼«±£»¤¡±·¨Ò²±»Ó¦Ó᣶ÔÓÚһЩÂñÔÚµØÏµÄÐ¿ÖÆ¹ÜµÀºÍÊú¹Ü»òþ°ô£¬½«ËüÃÇÀûÓõ¼ÏßÓëÌúÏàÁ¬¾ßÓÐÒÔϵÄЧ¹û£ºÍ¨¹ýÍÁÈÀµÄË®·ÖÐγÉFe ¡ª ZnµÄµç½âÒº£¬FeÓÐת»¯ÎªFe2 +µÄÇ÷ÊÆ¶ø¼õÉÙ¡£ËüÊÇ×÷ΪÒõ¼«£¬¶ø²»ÊÇÑô¼«¡£ |
» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©
2Â¥2012-11-26 10:48:25
lishengyin
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 121.2
- É¢½ð: 33
- ºì»¨: 1
- Ìû×Ó: 141
- ÔÚÏß: 114.5Сʱ
- ³æºÅ: 869804
- ×¢²á: 2009-10-12
- רҵ: ÎÞ»ú·Ç½ðÊô»ù¸´ºÏ²ÄÁÏ
3Â¥2012-11-26 11:36:15
wlh130392950
ͳæ (³õÈëÎÄ̳)
- ·ÒëEPI: 1
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 424.9
- ºì»¨: 2
- Ìû×Ó: 48
- ÔÚÏß: 7.8Сʱ
- ³æºÅ: 1867059
- ×¢²á: 2012-06-22
- רҵ: ÎÄÒÕÃÀѧ
4Â¥2012-11-26 12:25:01














»Ø¸´´ËÂ¥
lishengyin
лл¡£¡£¡£ÎÒÒ²²»×¨Òµ ºÇºÇ ×Ô¼ºÀí½â×Å·ÒëµÄ ¶à½»Á÷