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2 Ϸ
1.2.1 Ǧоеԭϱϩ-ϩ-ϩ(ABS)
1.
ABSζɫҳܼнϺùԵIJϣõĻе
ǿȺһĥԡͺԡԡˮԡѧȶԺ͵ܡڳͼӹȱԲߣ¶Ϊ70ңȱ¶Ϊ93ңͺԲױӲ࣬ڳͼӹ
2.
(1) ϣʪֽ⣻
(2) еȣϲճģ۽Ӻ۵ȣ
(3) ˸ѹע䣬ڲȱݵȡ¡ģ£ԣ (4) ģ߽עϵͳӦ࣬ģбȴȣֹݣ (5) עƳ¶ȣԽӦԺǿȣ ((6) ܼӦںȣȱڣǣԱӦУ
1.2.2
ABSΪ0.3%0.8%ƱƷʱϲƷĽṹصͲϵԣڱУΪ0.5%
1.2.2ABSϵҪָ2-1
2-1 ABSָ
ܶgcm-3 cm3g-1 ˮʣ% ۵㡣C ʣ% JkgC 1.021.05 0.860.98 0.20.4 130160 0.30.8 1470 ǿMPa ǿMpa 쵯ģMpa ǿMpa ѹǿMpa ģMpa 50 38 1.810 80 53 1.410 33
1.2.3ABSעղ
顶ʵģֲᡷȷABSϵע乤ղ: עͣݸʽ ݸת٣3060rmin ʽֱͨʽ ¶ȣ180190 Ͱǰ¶ȣ200210 Ͱж¶ȣ210230 Ͱ¶ȣ180200 ģ¶ȣ5070 עѹ7090MPa ѹ5070MPa עʱ䣺35s ѹʱ䣺1530s ȴʱ䣺1530s
ڣ4070s
ϲģʱʵ
2 ע豸ѡ
1 ܼĹ
òƷƵģҪнϸߵעЧʣʿɲòཽԶģ
ṹܼСģ߲һģ8ǻṹʽòཽڡ 2.1.1ܼ
ɵ1¿֪ܼABSܶΪ1.021.05 g?3Ϊ0.3%0.8%ܼĽṹܶȡ1.05g?3ƽΪ0.5%
ܼV1= 124.71223.14x3622+3.1436493.1436x8=0.583cm3 ȡܼV1 =0.58 cm3
ܼM1 = V1=0.58 cm31.035g?3=0.604g 2.1.2 עϵͳij
ɰܼ0.6㣬ڸģ߲һģǻ 1.ԽעϵͳΪ
V2=8V10.6=20.580.6=2.8cm3 2.ģһעϵΪ
V0=8V1+V2=80.58+2.8=7.47cm3; M=1.057.47=7.84g
ݼóһģǻM=7.84gУ M0.8=9.8g ϵļ㣬ѡעΪ20g
2 עܻͺŵѡ
ƷԼղѡעܻͺΪ עͺΪSYS-20ֱʽעҪ2-1
2.2.1 עܻҪ
2-1
ģ װ ע װ ݸֱmm 40 10140 20g 120 110 45 200 50 250 100 3 12 160200 min ݸת٣rעcm3 עѹMpa עʣg.s-1 ܻgs ģKN ģгmm ģСmm ģmm λֱmm mm mm Բ뾶mm ģߴmm ?1SYS-20ע
2.2.2 ǻУ
1עעУǻĿ n
0.8V0?V2 V1ʽұߡ228Ҫ