8/4/2019 Danh Muc Ky Hieu

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Danh mc k hiu

DMKH1

DANH MC K HIU

0 - Khi lng th tch;

G - khi lng;

V0 - th tch t nhin;a - Khi lng ring;

Va - th tch c;

- c;

r - rng ton phn;

Hp -

ht nc ca vt liu c

biu th theo phn trm khi lng;

Hv -

ht nc ca vt liu c

biu th theo phn trm th tch;

Gk- khi lng mu khi kh;G khi lng mu khi ht no nc;

Vn Th tch ca nc m vt liu ht vo;

an-khi lng ring ca nc;

Q Nhit lng truyn qua vt liu khi th nghim (kCal);

a Chiu dy nhit truyn qua (m);

F Din tch truyn nhit (m2);

t1, t2 - nhit 2 b mt mu (0C);t - Thi gian th nghim

(h);

oh s truyn nhit ca vt liu 00C;

t h s truyn nhit ca vt liu ttb;

ttb nhit trung bnh ca vt liu;

- ng sut, kG/cm2;

- bin dng n hi;

l - bin dng tuyt i;

- ng sut, kG/cm2;

t thi gian (s);

- nht, kG/cm2.s;

S qung ng, cm;

t thi gian truyn sng siu m (s);

t0 thi gian hiu chnh (s) ph thuc vo v tr ca thit b;

K - h s;

D - ng knh ca vin bi;

8/4/2019 Danh Muc Ky Hieu

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Danh mc k hiu

DMKH2

Mn - c mn;

Q (%) - hao mn;

Ec - mun n hi ca composit;

Vn - th tch ca vt liu nn;

Vh - th tch ht;Vs v Vn - hm lng si v ht;

c, sn - bin dng tng i ca composit, ca si v ca nn;

ai - lng st ring bit;

mi - t s % lng st trn tng sng;

m - ton b lng ct en th nghim;

Ai (%) - lng st tch lu trn tng sng;

M - mun ln;S - b mt ring, cm2/g;

Nyc - Lng nc yu cu, %;

Rk1, Rk2, ...Rkn: cng chu nn ca tng cp ct liu ln quy i t p dptrong xilanh, kG/cm

2;

x1, x2, ..xn: hm lng mi cp ht trong hn hp ct liu, %;

Dmax - ng knh ln nht ca ct liu;

Dmin - ng knh nh nht ca ct liu;

PT- phn tng;

S1 - lu ng ca hn hp va ng 1, cm;

S3 - lu ng ca hn hp va ng 3, cm;

Gn - gi nc ca hn hp va;

S1 - lu ng ca hn hp va ban u, cm;

S2 - lu ng ca hn hp va sau khi ht chn khng;

K - h s ph thuc mc va;