One, the brief introduction of feature of anxious broken bits of coal:
Anxious broken bits is the in crucible hangover after direct sends cent to determine, feature of anxious broken bits (the lave is qualitative appearance after CRC) coal pyrolysis. According to different figure cent is 8 serial number, its serial number is code name of feature of anxious broken bits namely:
1, fine coal (1 model) : It is pulverous entirely, without the grain that adheres each other.
2, adhesion (2 model) : Become powder namely or using finger to be touched gently basically is pulverous, among them bigger conglomeration is touched gently become powder namely.
3, be like felt (3 model) : Press gently with finger become small namely.
4, not melt felt (4 model) : Press ability to crack small forcibly with finger, above anxious broken bits lacklustre, next surfaces can have silver-colored gray burnish.
5, do not expand melt felt (5 model) : Anxious broken bits is formed compressed piece, the bounds of coal bead is distinguished not easily, the surface on anxious broken bits has burnish of apparent silvery white metal, burnish of next exterior silvery white are more apparent.
6, small expand melt felt (6 model) : Use finger pressing not to break, the fluctuation surface of anxious broken bits all has burnish of silvery white metal, watch mask has anxious broken bits to expand lesserly bag.
7, expand melt felt (7 model) : Of anxious broken bits on the surface all has burnish of silvery white metal, expand apparently, but height does not exceed 15mm.
8, strong expand melt felt (8 model) : Of anxious broken bits on the surface all has burnish of silvery white metal, but height is more than 15mm.
Think 1 ~ does not have caking property 2 numbers commonly, 3 ~ are young caking property 4 numbers, 5 ~ have stronger caking property 8 numbers.
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