A cheese of grey-state cotton yarn is immersed in a solution containing a de-aerating agent and the volume of air expelled is measured at given intervals of time.
weigh empty spindle, note weight
mount spindle on package support and fix on winding device
wind 15 g yarn onto spindle (ca. 45 s winding time)
attach 5 g “loading weight” to one end of the metal tube
Preparation of test liquor
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make up 5% stock solution / emulsion
make up 200 ml test liquor with a concentration of 2 g/l and 4 g/l
product to be tested
temperature 25°C
Testing routine
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pour 200 ml test liquor into 250-ml measuring cylinder
have stopwatch ready
drop package (cheese) into measuring cylinder
When the package is totally immersed in the liquor,
start the stopwatch
note the volume on the 250-ml measuring cylinder every 10 seconds
i.e. difference between liquor level
and 250-ml graduation.
Maximum testing time 2 min.
Assessment
1 ml volume difference = 3%
de-aeration *
Calculation example:
measured volume difference x
3%
—————————————————– = %
de-aeration
1 ml
Plot a graph of the volumes noted at 10-second intervals.
Note
Attaching a 5 g “loading weight” to the tube ensures that the package
(cheese) becomes totally immersed in the liquor immediately.
“Instantaneous air displacement” is hence invariably achieved, and
this is particularly important with products which have poor wetting and
de-aerating properties.
Pe Film Blown Line Production : HDPE/LDPE/LLDPE tubular film Thickness : 0.01-0.2mm for LDPE, 0.01 – 0.06mm for HDPE Film width : 32” – 47” Extrusion output: Max. 80 – 100kgs/hr for LDPE, 60 – 80kgs for HDPE Screw dia : 55mm L/D : 28/1 with grooved barrel Material of screw & barrel : SACM645 high carbon content alloy tool steel, honed polished, and chromed, nitride hardened, with water cooling device on feed hopper Barrel cooling : 1/4HP x 2 sets Main motor : 40HP AC motor + inverter control Gear box : FC25, one stage speed variation with lubrication system, with coolor Gear material : SCM21 carbon treat & gear face ground No die ( from Marigold 100 + 150mm HDPE die to be used on this machine ) Cooling blower : 5HP with dome type air distributor, flexible hoses, with inverter control Take up unit : Adjustable type, with pneumatic nip roller, with lower working platform With wooden collapsing frame & gusseting board and bubble stabilizer Take up roller : 160mm dia. X 1300mm (L) Take up motor : 1HP AC + inverter control + reducer with coupling Second take up roller : driven by 0.2kg/M torque motor + reducer with coupling Winder unit : Single surface contact manual type Winding roller : 250mm dia. X 1300mm (L) Winding motor : 0.3kg/M torque motor + reducer with coupling With banana roller x 1, with winding reel x 2pcs Control Panel : 1 set, With digital displaying temperature controller, A-meter, push button, Magnetic contactor, Spring type T/C wire for temperature sensing Socket type heaters on die & adaptor
Options: Rotary die device 1 set USD5,000.-
6% for bank interest of 365 days usance L/C for total amount: to be additional Others 1. 2KW 1500mm Encore brand corona treater (U.S.A)
1 set USD5,193.- 3KW 1500mm Taiwanese made corona treater
1 set USD3,960.- 2. 1500mm economic back to back winder
1 set USD7,560.- Deluxe type winder with middle film slitting stand 1 set USD11,520.-
The
purpose of this procedure is to assess the wear ability and comfort of a
garment.
SCOPE
This
procedure applies to all styles.
RESPONSIBILITY AND AUTHORITY
The
Technical Dept. at Head Office is responsible for ensuring that this procedure
is carried out.
PROCEDURE
The Gmt. Tech. Mgr at Head Office issues a gmt. along with a wearer trial form to the participant.
The participant wears the garment for a total of fifty hours and fills in the wearer trial form.
Head Office then assesses the wearer trial form to establish certain points. This is then sent to the Factory and a copy is kept in the style file.
If there are no problems in these first fifty hours the participant is then issued another wearer trial form and asked to carry the trial on for a further one hundred and fifty hours.
Head Office assesses the second wearer trial form to establish if any problems arose. This is then sent to the Factory and a copy is put into the style file. sss
Conclusion
If a problem does arise on Multiaxial Weaving Machine during the wearer trial this is dealt with by Factory or Head Office depending on what problem arose.
What is Cone Calorimeter? Cone Calorimeter Description
cone calorimeter
Cone Calorimeter Description
Detail
Testing Standards
ASTM E 1354, ASTM E 1474, ASTM E 1550, ASTM E 1740, ASTM D 5484, ASTM D 6113, NFPA 271, NFPA 264, CAN ULC 135, BS 476 pan 15, ISO 5660
Cone I lance
Tubular heater element (original and spare) rated at 5000 Watts at 230 Volts conically wound to a truncated cone shape producing uniform irradiances of up to 100kW/m2 measured I inch below heater face over the 100 min x 100 nun specimen exposure area. hit heater temperance is monitored and controlled by three (3) type K thermocouples and a 3-term P11) temperature contmL
EymmisT sysTEm
All. PARTS Stainless steel construcuon of combustion area hood, duct. orifice plate, exhaust blower and gas sampling ring prob Variable speed blower having a nominal flow rate of 0.024 m /s. Thermocouple temperature measurement and calibrated pressure transducer for determining exhaust flow rate.
WEIGH SYSTEM
Total range of 6 kg., Accuracy ± 0.01 g., No effects of temperature to weigh system reading. Computerized calibration and scaling.
SPECIMEN HOLDERS
3 each, stainless steel construction, Accommodate specimens 100 min x 100mm x 50 Iran thick.
SMOKE MEASURING
sygrEm
Main beam and Reference beam (compensation) detectors, Absorptive type (non-film) 0.3 O.D and 0.8 O.D neutral density calibration filters, Computerized calibration and scaling
HEAT RELEASE CALIBRATION
Calibration burner for burning purr methane to calibrate heat release measurement (determine C- factor), Calibrated Mass flow controller used to control gas flow, Computerized automatic adjustment of gas flow to user set energy level
HEAT FLUX METER
Computerized procedure for setting exposure irradiance of specimen under test, HIST traceable calibration
Auto calibration, software is Microsoft (MS) Windows compatible. Fast data acquisition scanning — Collection and recording of test data a minimum rate of 4 scans per second (250 milliseconds per scan, A minimum of 6 analog input channels are made available to the User to store custom scaled data channels, Standard calculations are accomplished using MS Visual Basic for Applications NBA) macros preprogrammed in Microsoft Excel to present results as formatted reports and graphs, Macros creating reports and graphs to the ASTM 1354 and ISO 5660 Parts 1 and 2 are included with software, preprogrammed formatted reports creating: Non-standard calculations of the data, Specialized or custom reports, Specialized or custom graphs, lest 1/ata may be transferred to any database and SPC programs capable of accepting MS Excel file data.
