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Çó¸ßÊÖ·ÒëÏÂÃæÁ½¶Î»°£¬·Òë³ÉÓ¢ÓллÀ²£¡ 1.ÂݸËתÊýÔ½¸ß£¬»úͲÄÚµÄѹÁ¦Ô½Ç¿£¬ÎïÁϺͻúͲ֮¼ä¡¢ÎïÁϺÍÂݸËÖ®¼äÒÔ¼°ÎïÁϺÍÎïÁÏÖ®¼äµÄĦ²ÁÁ¦ºÍ¼ôÇÐÁ¦Ô½´ó£¬ÔÚ´ËÌõ¼þÏÂÓÐÀûÓôó·Ö×ÓµÄÁѽ⣬ʹÏËάÎïÁÏ·Ö×ÓÁѽâ³Ì¶ÈÔö´ó£¬×ª»¯ÎªµÍ·Ö×ÓÁ¿µÄË®ÈÜÐԳɷÖÔö¶à£¬±íÏÖΪ¼·Ñ¹²úÆ·ÖÐSDFº¬Á¿µÄÉý¸ß¡£¶øÂݸËתËÙ¹ý´ó£¬ÎïÁÏÔÚ»úͲÄÚÖüÁôʱ¼ä¶Ì¡£ 2.ÎïÁÏË®·ÖµÄ´óСҲÆð×ÅÓ°Ïì»úÇ»ÄÚ²úÉúѹÁ¦ºÍ¼ôÇÐÁ¦´óСµÄ×÷Óá£ÎïÁÏË®·ÖµÍÓÐÀûÓÚÔö´ó»úͲÄÚµÄѹÁ¦¡¢Ä¦²ÁÁ¦¡¢¼ôÇÐÁ¦£¬´Ó¶øÓÐÀûÓÚSDFµÄÌá¸ß£¬µ«¹ýµÍ»áÔì³É»úÆ÷¶ÂÈû£¬²»ÀûÓÚ¹¤Òµ»¯Éú²ú ¡£ |
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220chengeng
ľ³æ (СÓÐÃûÆø)
- ·ÒëEPI: 89
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.028
- ½ð±Ò: 2827.3
- ºì»¨: 3
- Ìû×Ó: 238
- ÔÚÏß: 195.1Сʱ
- ³æºÅ: 484710
- ×¢²á: 2007-12-27
- רҵ: ½»Í¨¹¤³Ì
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Carena: ½ð±Ò+1, ¸ÐлӦÖú 2012-11-20 17:10:16
17106007: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-20 21:53:48
Carena: ½ð±Ò+1, ¸ÐлӦÖú 2012-11-20 17:10:16
17106007: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-20 21:53:48
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1.ÂݸËתÊýÔ½¸ß£¬»úͲÄÚµÄѹÁ¦Ô½Ç¿£¬ÎïÁϺͻúͲ֮¼ä¡¢ÎïÁϺÍÂݸËÖ®¼äÒÔ¼°ÎïÁϺÍÎïÁÏÖ®¼äµÄĦ²ÁÁ¦ºÍ¼ôÇÐÁ¦Ô½´ó£¬ÔÚ´ËÌõ¼þÏÂÓÐÀûÓôó·Ö×ÓµÄÁѽ⣬ʹÏËάÎïÁÏ·Ö×ÓÁѽâ³Ì¶ÈÔö´ó£¬×ª»¯ÎªµÍ·Ö×ÓÁ¿µÄË®ÈÜÐԳɷÖÔö¶à£¬±íÏÖΪ¼·Ñ¹²úÆ·ÖÐSDFº¬Á¿µÄÉý¸ß¡£¶øÂݸËתËÙ¹ý´ó£¬ÎïÁÏÔÚ»úͲÄÚÖüÁôʱ¼ä¶Ì¡£ 1. The faster the bolt rotates, the stronger the pressure in the drum, and thus the greater the friction and shear force between materials and between the materials and bolts. This will help the splitting of macromolecule, for example, the fibrous material molecule. Given this circumstance, in the molecule more water-soluble components of low molecular weight tend to increase, which is justified by the rise of SDF content in extruded products. A too fast rotation of bolt, however, makes a short stay of the materials in the drum. 2.ÎïÁÏË®·ÖµÄ´óСҲÆð×ÅÓ°Ïì»úÇ»ÄÚ²úÉúѹÁ¦ºÍ¼ôÇÐÁ¦´óСµÄ×÷Óá£ÎïÁÏË®·ÖµÍÓÐÀûÓÚÔö´ó»úͲÄÚµÄѹÁ¦¡¢Ä¦²ÁÁ¦¡¢¼ôÇÐÁ¦£¬´Ó¶øÓÐÀûÓÚSDFµÄÌá¸ß£¬µ«¹ýµÍ»áÔì³É»úÆ÷¶ÂÈû£¬²»ÀûÓÚ¹¤Òµ»¯Éú²ú ¡£ 2. The material moisture can also affect the pressure and shear force generated in the drum. Low moisture helps elevate the pressure, friction and shear force in the drum and consequently helps raise the SDF content. Moisture too low in the materials, however, could be adverse to industrial production. |
2Â¥2012-11-20 16:43:37
wangzh327
ľ³æ (СÓÐÃûÆø)
- ·ÒëEPI: 5
- Ó¦Öú: 5 (Ó×¶ùÔ°)
- ½ð±Ò: 3042.3
- ºì»¨: 1
- Ìû×Ó: 159
- ÔÚÏß: 116.8Сʱ
- ³æºÅ: 2105902
- ×¢²á: 2012-11-04
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Carena: ½ð±Ò+1, ¹ÄÀøÐ³棬»¶Ó³£À´ 2012-11-20 19:35:03
17106007: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-20 21:53:37
Carena: ½ð±Ò+1, ¹ÄÀøÐ³棬»¶Ó³£À´ 2012-11-20 19:35:03
17106007: ½ð±Ò+10, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-20 21:53:37
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1.ÂݸËתÊýÔ½¸ß£¬»úͲÄÚµÄѹÁ¦Ô½Ç¿£¬ÎïÁϺͻúͲ֮¼ä¡¢ÎïÁϺÍÂݸËÖ®¼äÒÔ¼°ÎïÁϺÍÎïÁÏÖ®¼äµÄĦ²ÁÁ¦ºÍ¼ôÇÐÁ¦Ô½´ó£¬ÔÚ´ËÌõ¼þÏÂÓÐÀûÓôó·Ö×ÓµÄÁѽ⣬ʹÏËάÎïÁÏ·Ö×ÓÁѽâ³Ì¶ÈÔö´ó£¬×ª»¯ÎªµÍ·Ö×ÓÁ¿µÄË®ÈÜÐԳɷÖÔö¶à£¬±íÏÖΪ¼·Ñ¹²úÆ·ÖÐSDFº¬Á¿µÄÉý¸ß¡£¶øÂݸËתËÙ¹ý´ó£¬ÎïÁÏÔÚ»úͲÄÚÖüÁôʱ¼ä¶Ì¡£ The higher the screw speed£¬the higher pressure in machine barrel£»and so higher the pressure between material and machine barrel£¬material and screw£¬material and material£»what indicates the SDF level rises in extruded products is under this condition£¬the large the large molecules are cracked easily£¬which amplifies the degree of decomposition of fiber material molecules£¬thus transform into smaller moleculars that contains many water-solubility parts.while the screw speed is overhigh£¬the material can not hold long in machine barrel. 2.ÎïÁÏË®·ÖµÄ´óСҲÆð×ÅÓ°Ïì»úÇ»ÄÚ²úÉúѹÁ¦ºÍ¼ôÇÐÁ¦´óСµÄ×÷Óá£ÎïÁÏË®·ÖµÍÓÐÀûÓÚÔö´ó»úͲÄÚµÄѹÁ¦¡¢Ä¦²ÁÁ¦¡¢¼ôÇÐÁ¦£¬´Ó¶øÓÐÀûÓÚSDFµÄÌá¸ß£¬µ«¹ýµÍ»áÔì³É»úÆ÷¶ÂÈû£¬²»ÀûÓÚ¹¤Òµ»¯Éú²ú Water in material can also play an important role in affecting the pressure in cavity and shearing force. The low moisture have a advantage to enlarge pressure in machine barrel£¬frictional force and shearing force£»therefore in favor of promoting SDF£»but overlow will cause clogs machinery£¬which is useless to industral production. |
3Â¥2012-11-20 18:32:43
phu_grassman
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- Ó¦Öú: 7 (Ó×¶ùÔ°)
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- ¹ÜϽ: English Cafe
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
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17106007: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-23 09:09:19
17106007: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-23 09:09:19
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1. The faster the screw speed£¬the higher the pressure in machine barrel, and thus the greater the friction and the shearing force between the material and the machine barrel£¬the material and the screw, the material and the material, which is good for the cracking of macromolecules. On this condition, water-soluble components with low molecular weight increases with the increasing degree of cracking of the fiber material, resulting in the rise in the SDF level in the extruded products. However, the material won¡¯t stay long in the machine barrel if the screw speed is too high. 2. Content of water in the material also have an effect on the pressure and shearing force in the cavity. Low content of water is in favor of the increase of the pressure, the friction and the shearing force in the machine barrel, which contribute to the increase in the SDF level. But blockage of the machine will happen if the content of water is too low, which is detrimental to industrial production. |
4Â¥2012-11-21 09:17:45














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