phillyrin

第11楼2011/05/12

常见的进口泵油，主要是edwards和inland的。具体标号如下：(两家使用的压力单位不同1torr=1mmHg=1.33mBar)
edwards
http://www.edwardsvacuum.com/uploadedFiles/Resource/Technical_Articles/How%20to%20Select%20the%20Right%20Vacuum%20Pump%20for%20the%20Application.pdf
谁能解释一下，为什么表格线都被吃掉了？

	Ultragrade 15	Ultragrade 19	Ultragrade 20	Ultragrade 70
Vapor pressure mbar:
20ºC	5.8 x 10^-6	1 x 10^-8（个人认为这个标错了，应该是-6）	2.1 x 10^-7	2.1 x 10^-7
100ºC	3.0 x 10^-2	1.0 x 10^-3	3.0 x 10^-3	3 x 10^-3
Molecular weight	385	420	500	600
Specific gravity at 15ºC	0.86	0.86	0.86	0.86
Viscosity cSt:
at 20ºC	104.2	143.7	352	222
at 40ºC	38.1	48.6	103	70
Pour point ºC	-18	-16	-12	-12
Flash point ºC	220	230	260	230
Auto ignition point ºC	355	355	365	360
Sulphur content % mass/mass	0	0	0	0

inland

Specification	INLAND 15 ULTRA	INLAND 19 ULTRA	INLAND 20 ULTRA	INLAND 70 ULTRA
Vapor Pressure @ 25ºC	<1x10^-6torr	<1x10^-6torr	<1x10^-7torr	<1x10^-7torr
Boiling Pt. @ .01 torr	159ºC	166ºC	168ºC	166ºC
Viscosity @ 40ºC	37 cSt	55 cSt	110 cSt	72 cSt
Pour Pt.	-15ºC	-10ºC	-9ºC	-10ºC
Flash Pt.	233ºC	247ºC	252ºC	249ºC
Density	0.86 g/ml	0.86 g/ml	0.86 g/ml	0.86 g/ml
Color	clear	clear	clear	clear

Product	Vapor Pressure @ 25ºC (torr)	Boiling Point @ .01 torr (ºC)	Viscosity @ 40ºC	Pour Point (ºC)	Flash Point (ºC)	Fire Point (ºC)	Density @ 25ºC (g/ml)
Inland TW	<1x10^-6	158	65	-12	243	270	0.86
Inland HVTW	<1x10^-7	161	106	-12	249	277	0.86
Inland 19	1x10^-5	112	55	-15	213	244	0.87
Invoil 20	<1x10^-6	127	58	-10	224	259	0.87
Convoil 20	<1x10^-6	120	71	-7	226	266	0.88
Inland 21	3x10^-5	112	55	-15	213	244	0.87
Inland 33	<1x10^-6	166	67	-10	247	275	0.86
Inland 35	<1x10^-7	168	115	-9	252	281	0.86
Inland 43	2x10^-4	95	68	-10	230	250	0.88
Inland 45	<1x10^-7	133	53	-59	264	288	0.83
Inland 45Z	<1x10^-7	137	67	-55	285	305	0.83
Inland 77	<5x10^-5	138	100	-9	257	291	0.88
Inland 87	<1x10^-4	100	175	-29	210	>240	0.89
Inland 97	<4x10^-4	158	207	-12	235	277	0.90
Inland 220	<1x10^-5	107	47	-20	225	none	1.150
Inland 300	<1x10^-5	100	65	-1	240	none	1.151
Inland 550	<1x10^-5	116	117	-7	246	none	1.155