YB/T 4182-2008 PDF English
US$125.00 · In stock · Download in 9 secondsYB/T 4182-2008: Steel wire ination of lubricant content Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| YB/T 4182-2008 | English | 125 |
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Steel wire ination of lubricant content
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YB/T 4182-2008: Steel wire ination of lubricant content---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YBT4182-2008
YB
FERROUS METALLURGY INDUSTRY STANDARD
ICS 77.040.01
H 49
Steel wire ropes -- Determination of lubricant content
(ISO 3155.1976, Stranded wire ropes for mine hoisting -- Fibre components --
Characteristics and tests, MOD)
Issued on: JUNE 04, 2008
Implemented on: NOVEMBER 01, 2008
Issued by. National Development and Reform Commission of the People's
Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Determination methods... 4
3 Test report... 9
Annex A (informative) List of technical differences and reasons between this Standard
and ISO 3155.1976... 10
Steel wire ropes -- Determination of lubricant content
1 Scope
This Standard specifies the principles, specimens, test equipment, test solutions, test
conditions, test steps, and calculation of test results for the determination of oil content
and moisture regain of steel wire ropes and rope cores (weight method and extraction
evaporation method).
The weight method of this Standard is applicable to the determination of oil content and
moisture regain of steel wire ropes and rope cores. The extraction distillation method is
suitable for determining the oil content and moisture regain of rope cores.
2 Determination methods
2.1 Weight method
2.1.1 Principle
Separate the strands and core of the steel wire rope and weigh them separately. Dry the
moisture. Then soak them separately in suitable solvents to wash away the grease.
According to the weight of the strands and cores before and after removing water and
grease. Calculate the oil content and moisture regain of the steel wire rope and core.
2.1.2 Reagents and equipment (all reagents used are analytically pure)
a) N-heptane;
b) Filter paper;
c) Funnel and funnel holder;
d) Analytical balance with an accuracy of 0.001 g;
e) Blast drying oven;
f) Hydraulic cutters or wire cutters;
g) Weighing bottle.
2.1.3 Specimens
To ensure the accuracy of the measurement results, foreign objects should be avoided
from adhering to the steel wire rope during the specimen preparation process. At the
same time, the grease on the steel wire rope should be avoided from being wiped off.
2.1.3.1 Wrap one end of the steel wire rope with a backing paper of known weight.
After holding it with your hand, use a hydraulic cutter or wire cutter to cut a specimen
of about 100 mm in length (for steel wire ropes with relatively thick or particularly thin
diameters, the sampling length can be adjusted appropriately).
2.1.3.2 Use wire pliers to remove the rope core. Use an analytical balance to weigh the
weight of the rope and core separately, with an accuracy of 0.001 g (the same below).
When weighing the rope, the lining paper and rope should be weighed together, and
then the weight of the lining paper should be subtracted. Record the weight of the rope
as m1 and the weight of the rope core as m2.
2.1.4 Determination steps
2.1.4.1 Use wire pliers to disassemble the strand rope and place it in a beaker. Pour in
n-heptane. Immerse the steel wire. Cover up. Soak for more than 30 min and shake
continuously. After the surface grease of the steel wire is cleaned, remove the steel wire.
After the surface of the steel wire is slightly dry, place it in an oven preheated to
100°C~105°C. After drying for 1h, place it in a dryer and cool it to room temperature.
Weigh the weight of the steel wire after removing grease in m3.
2.1.4.2 Disassemble the natural fiber core with a known weight and place it in a
weighing bottle with a known weight. Then place the person in an oven preheated to
100°C~105°C for 2 h. Remove. Cool to room temperature in a dryer. Weigh the weight
of the rope core after removing moisture using an analytical balance m4.
2.1.4.3 Place the dried natural fiber core or undried synthetic fiber core into a beaker.
Add solvent and immerse the rope core fibers. Cover and soak.
2.1.4.4 After soaking the rope core fiber in solvent for 24 h, pour the rope core fiber
along with the solvent into a funnel lined with filter paper that has been dried to a
constant weight for filtration. Spray and wash the rope core fibers and filter paper
several times with solvent. Wash until the filtrate is colorless.
2.1.4.5 Transfer the rope core fiber along with the filter paper to a weighing bottle of
known weight. Place in an oven preheated to 100°C~105°C. For natural fibers, dry for
2 h. For synthetic fibers, dry for 1 h. Remove Cool to room temperature in a dryer.
Weigh. Subtracting the weight of the known weighing bottle and the weight of the filter
paper from this weight gives the weight of the dry rope core after removing water and
oil, m5.
2.1.5 Result calculation
2.1.5.1 Calculation of moisture regain of rope core
The moisture regain of the rope core is calculated according to formula (1).
Steam the moisture of the specimen with an appropriate solvent (xylene or benzene
distillate) Calculate the moisture regain of the rope core based on the moisture content
and specimen weight. Extract the oil and fat from the specimen using appropriate
solvents (such as chloroform) and a soxhlet extractor. Remove the solvent by steaming.
After drying, weigh the amount of residual oil. Calculate the oil content of the rope core.
2.2.2 Reagents and equipment (all reagents used are analytically pure)
a) Xylene or appropriate benzene derivatives;
b) Trichloromethane;
c) Round bottom flask;
d) Condenser;
e) Analytical balance with an accuracy of 0.001 g;
f) Soxhlet extractor;
g) Blast drying oven;
h) Thermostatic water bath.
2.2.3 Specimens
Extract a rope core weighing at least 100 g from the specimen. Then cut two complete
specimens from the middle. Specimen 1 weighs about 20 g~30 g and is used to
determine the oil content of the rope core. Specimen 2 weighs approximately 50 g and
is used to determine the moisture regain of the rope core.
2.2.4 Determination steps and result calculation
2.2.4.1 Determination of moisture
Weigh specimen 2 and record it as m2, accurate to 0.001 g (the same below). Then place
the specimen into the flask. Inject xylene or appropriate benzene derivatives. Connect
the experimental device properly. Heat the flask. Keep the solvent boiling. Steam until
the amount of water in the receiver no longer increases, completely separate the water
from xylene, and obtain the maximum weight of water in m3.
NOTE. Throughout the entire test, the laboratory should be well ventilated and no open flames are
allowed.
2.2.4.2 Calculation of moisture regain of rope core
The moisture regain of the rope core is calculated according to formula (4).
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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