Paper Bursting Strength Instrument

Paper Bursting Strength Instrument

Paper Bursting Strength Instrument

Author: QINSUN Date: May 17^th, 2016

Bursting strength definition is by the hydraulic system pressure, the maximum pressure when the elastic film which burst patterns of circular area.

Bursting strength definition: Divided by its quantitative burst degrees

Bursting strength instrument is used for detection of paper, cardboard, corrugated board burst degrees and special testing instruments of production, the current widely used instrument well for Mullen burst degrees (Mullen) burst instrument.

Bursting is the bursting strength of paper, which represents the total strength of the paper and uniformity. It can be said bursting strength of the paper which is determined by the sum of uniformity, depending on its elongation, and certain features of the sheet structures. Between nature and its strong anti-mechanical properties have a certain relationship, but also influenced by paper elongation, so it also reflected the zone toughness paper

Average tension resistance is a certain width of the vertical and horizontal, vertical and horizontal difference can be quite large, and the intensity of burst degrees is a certain area combined. Constitute the main factors of the mechanical strength, is the binding force and the average length of the fiber. Burst degrees is the tensile strength and elongation of the composite function, its stress is mostly in the paper to burst, across the sheet of a kind of tension, which is formed by the pressure difference due to deformation roughly equal in both directions, creating uneven stresses in the paper, and the general rupture pattern become a longitudinal vertical cracks with paper. This phenomenon is due to the paper longitudinal elongation is small, the rubber membrane pluck up, for the longitudinal stress in tension. Burst degrees directly to sack craft paper, wrapping paper and carton board USES directly. The paper in the process of using are burst degrees similar stress during the process of inspection, however, for most of the paper, burst, there is no direct link between paper and paper USES.

Bursting strength instrument working principle,

According to PASCAL's law, pressure in an airtight fluid can make liquid transmission in all directions according to the size of the original. In instrument seal oil cylinder and the pressure of the paper should the lumen, filled with methyl silicone oil as pressure transmission medium, when moving at a constant speed motor drives the piston, film pressure and raised by silicone oil; Clamping, above the film being chuck fixed sample, up and down the uniform stress, until the broken sample. Processing chip lock the maximum stress value, through the LCD panel shows that the pressure value, the pressure value is the resistance of the sample broken degrees

So how to instrument calibration burst degrees, in fact, relevant national verification regulation, light industry standard, national standard of GB/T1539 calibration method, measurement accuracy has been specified by no less than 0.1% of the standard pressure gauge, to check the error value, if not according to the method of calibration is not in conformity with the provisions invalid proofreading (such as the current market circulation of so-called "aluminum foil calibration", this kind of aluminum foil can only be used as a fixed value of the sample to test or dynamic comparison, rather than to detect calibration data as the basis, because the precision of the aluminum foil simply amounted to less than 0.1%, so please use or to be cautious when buying instrument burst degrees)

More about Bursting strength instrument , you can follow as below, Qinsun Instruments Co., LTD,

Address: No. 258 Banting Road, Shanghai, Zip Code: 201615 Phone: +86-21-6420 0566 Fax: +86-21-6420 0566-810     E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.

Oxygen Index Test Apparatus

Oxygen Index Test Apparatus

Structure and Principle for Oxygen Index Test Apparatus

Date: May 16^th, 2016 Author: QINSUN

Oxygen Index Test Apparatus Structure Introduction:
Oxygen Index Test Apparatus is made by the combustion tube, specimen holder, flow control system and ignition components.

Combustion tube is a heat-resistant glass, the lower end of the tube inserted in the base, a certain height within the base filled with glass beads, metal mesh is placed on a glass beads, for blocking burning droplets. The specimen is clamped a metal spring, the film material, use a U-shaped sample holder. Flow control system consists of pressure gauge, regulator valve, control valve, rotameter and piping components. Igniter flame length is adjustable, the test flame length of 10mm.
Oxygen Index Test Apparatus Standard:
According to "EN ISO 4589-2: 2006-06 room temperature oxygen index test" and "GBT 2406-1993 Test method for flammability of plastic oxygen index" "GBT 8924-2005 fiber reinforced plastics burning behavior by oxygen index of production requirements.
Oxygen Index Test Apparatus Technical Reference:

1, measuring range: 0-100% / 02.

2, resolution: 0.1% / 02.

3, the measurement accuracy: (± 0.4%), / 02.

4, Response time: <l0s.

5, digital precision: 0.1% ± 1 word.

6, the output drift: <5% / year.

7, stopwatch: accuracy 0.5s.

8, Dimensions approximately: 360mm × 250mm × 530mm.

9, Warranty: 12 months after delivery.
Oxygen Index Test Apparatus working conditions:
1, Environment temperature: -10 ℃ -40 ℃.

2, relative humidity: ≤85%.

3, the use of gas: GB3863 industrial gaseous oxygen; GB3864 industrial gaseous nitrogen; two bottles of gas have to be the regulator (with user).

4, input pressure: (0.25-0.4) Mpa.

5, Working pressure: 0.l Mpa.
Oxygen Index Test Apparatus Description：
Product Name: Digital Oxygen index tester also known as: oxygen index analyzer, made by Qinsun Instruments Co., LTD., Model: XWR-2406 (product model using "JBT 10059-1999 tester and nondestructive testing model designation is defined)
Reference standard：
GB / T 2406-1993 “ Plastics. Determination of burning behavior by oxygen index"

 (Limiting) Oxygen Index Test Apparatus Product principle and function：
Clearly define the oxygen index and its application in the principle of relative combustibility evaluation of polymer materials　　

Understand the structure and working principle of the oxygen index apparatus
Master with oxygen index tester and the basic methods of oxygen index determination of common materials
To evaluate the combustion performance of common materials.
Material is burned, need to consume large amounts of oxygen, different fuel, burning need to consume the amount of oxygen, through to the material in the process of burning the determination of minimum oxygen consumption, calculate the material of the oxygen index value, to evaluate the combustion performance of matter. So-called Oxygen index (Oxygen index), refers to the regulation of test conditions, specimen in Oxygen and nitrogen mixture flow, to maintain stable combustion (i.e., to meet the need of flaming), minimum Oxygen concentration in Oxygen volume percentage of the value (i.e. in the material after ignition, burning time can keep burning 50 mm long or 3 min need Oxygen, nitrogen, minimum volume percentage of Oxygen concentration in the mixed gases). It is as material in contact with the flame in the air when the ease of burning is very effective. It is generally believed that OI < 27 belong to flammable materials, 27 OI or less < 32 is a combustible material, OI of 32 or flame retardant material. HC - type 2 oxygen index tester, is used to determine the volume percentage of oxygen required material combustion process.
Oxygen index test method, is to a certain size of the sample with the sample holder vertical clamping in the transparent combustion cylinder, there are mixed in a certain proportion of upward mobility oxygen nitrogen flow. Is burning with the top of the sample, observing the subsequent combustion phenomenon, and record the combustion duration or burned distance, burning time of sample more than 3 min or flame front line more than 50 mm, lower oxygen concentrations, the burning time of sample can't less than 3 min or flame front lines, will increase the oxygen concentration, so repeatedly, from the top and bottom sides gradually close to the specified value, to the concentration difference of the two is less than 0.5%. < / l0s.

You can follow as below, Qinsun Instruments Co., LTD, Address: No. 258 Banting Road, Shanghai, Zip Code: 201199

Phone: +86-21-6420 0566    Fax: +86-21-6420 0566-810     E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.

glow wire tester

the glow wire tester

Experimental operation methods of the glow wire tester

Author: QINSUN Date: 2016/5/13  

About the glow wire tester operation instructions according to the iec60695, gb5169.10-11 and gb4706.1 the design and manufacturing requirements with the standards "glow wire test method", which apply to the fire danger test on electrical and electronic products, household electrical appliances and materials, simulation heat element or overload resistance of heat or ignition source caused by thermal stress in a short time. This instrument adopts steel structure of spraying, imported instrument display, easy operation, stable performance, suitable for the quality inspection departments at all levels and relevant enterprises to use fire resistant test

一．The main technical parameters and functions for the glow wire tester
1．Heating temperature: 500-1000 ° or less continuous tunable range, temperature measurement accuracy of plus or minus 10 ° c
2．More than burning time: 0.1 999.9 s, plus or minus 0.1 s (adjustable time range)
3．Burning time: 0.1 999.9 s, automatic recording, pause manually
4．Residual flame time: 0.1 999.9 s, automatic recording, pause manually
5．Hot wire for sample pressure: 1 + / - 0.2 n. pressure limiting depth of 7 mm
6．Glow wire: φ nickel chromium (80%), chromium (20%), the size is made according to the rules.
7．Thermocouple: φ nickel chromium/nickel aluminum wire, k index
8． Auto off: sample after reaching prescribed burning time, automatically be off from the hot wire
9．Overall dimensions: width * deep * high (1120 * 520 * 520) mm

二、Preparation about the glow wire tester operating instructions before use
1、The instrument is placed in ventilation equipment room (or special ventilation in a small laboratory), in order to test after waste gas discharge in a timely manner)
2、The two weights form a complete set with thin wire two pulleys at left by the supporting plate (through the corresponding holes) hanging at the bottom of the supporting plate, the other end around below red part of the small screws
3、According to the requirements of standard to make and clamp samples
4、To determine the experiments location
a．Press the "left" button, when the glow wire head comes into contact with the red arrow loosening the "left" key part; Fixed a try in below red arrow part, make a good contact with hot wire head to try
b．Adjust the test heat depth of 7 mm. Adjust the proximity switches, lights, and fixed the induction switch of the position
c．Press the "right" button; make the car right, the right automatically stop after touching the limit
三、Software specifications
1、Switch on the main interface, click enter the system
2、Working interface
2-1）Test temperature: make measurement for hot wire temperature
2-2）The temperature in the cabinet: the current temperature in the cabinet
2-3）Residual flame time: keeping time for flame
2-4）More than burning time: after the flame is extinguished Mars keep time
2-5）The burning time: car contact sensor timing starts
2-6）Burning time Settings: set the burning time
2-7）Activation: the car automatically on the left, when the sample into contact with hot wire, the car is stopped on the left, timing starts burning time, burning to preset time arrives, rack back automatically
2-8）stop：
2-9） Left: test the car on the left, reaches the limit stop
2-10）Right: test the car right, reaches the limit stop
2-11）Flaming pause: time to burn, flaming start time; click, flame time to stop counting.
2-12）Pause burning: Flaming time, the burning, more than start time; click, burning, more than time to stop counting.
2-13）Heating: the heating start
2-14）Time Reset: burning time, flaming time, burning time than the time cleared and reset to start
3、Temperature compensation page
3-1）Temperature test: input the deviation compared with practical temperature value, make compensation temperature experiment
3-2）The temperature in the cabinet: input the deviation compared with practical temperature value, to compensate the temperature in the cabinet
4、The temperature curve
Test temperature real-time curve, which reflects the change trend to experimental temperature
Operation instructions about the glow wire tester

四、the glow wire tester Test procedures
1、make connect to power switch in burn cases

2、Press the "reset" button, set the burning time according to the standard requirement
3、Press the heat button access to current, a clockwise to adjust the heating power knob "current regulation"
4、After stable temperature, press the "left" button, the car will go on. When the sample into contact with hot wire, at this point the car stopped on the left, namely the instrument for timing, hot to preset time arrives, rack back automatically, trial when sample a flame, press the "residual flame pause," flame dies should press the "burning" suspended, if you want to stop the test halfway, can press the "stop" button
五． the glow wire tester Precautions
1、The users must be stable power supply; Otherwise too much effect on the temperature changes by voltage fluctuation.
2、Thermocouples are wearing parts, it is not a column of qualified 3 aspects for product warranty
3、The glow-wire should not be long-term work at high temperatures, so as not to shorten the service life of the thermocouple which should be promptly after each use to reduce the current, and power off.
4、After each test, clean the combustion chamber in case of power failure, and be careful not to touch crash and burning thermocouple wire
5、When the test is completed, the user can use the fan exhaust gases generated during combustion, but fans do not open during the test, so as not to affect the test results
6、If you need repairs, especially replacement of the glow-wire pay attention to toggle through retighten the screws, otherwise adverse effects from exposure to current loop interfaces and generate heat. After the user replacement parts, should be on all the screws

五、the glow wire tester Remark

Ammeter and preset settings (when the device is shipped, the parameters have been set, a non-professional guidance, not allowed to change, or the fault which is not covered by the warranty)

More about the glow wire tester,

You can follow as below, Qinsun Instruments Co., LTD, Address: No. 258 Banting Road, Shanghai, Zip Code: 201199

Phone: +86-21-6420 0566    Fax: +86-21-6420 0566-810     E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.

Vertical Flammability Test Resolution on Automotive Interior Materials

Vertical Flammability Test

Vertical Flammability Test Resolution on Automotive Interior Materials

Date: 2016-5-5 Author: QINSUN

With the improvement of people's living standards, people pay more and more attention to security issues, the fire was one of the most common security risks, but also focus on scientific and technological research direction where paper focuses on automotive interior materials burning test vertical resolution, automotive interior materials are flame-retardant refers to a substance having or treated material has significantly delayed flame propagation properties. Currently flame retardancy was evaluated in many ways, such as horizontal or vertical combustion test, oxygen index and smoke density, etc.
　　
According to reports, an ordinary family car interior decoration materials consumption is about 20-40kg, these decorations are mainly due to combustible textile fibers lined plate, polyurethane foam material, leather, materials such as hot melt adhesive composition, and mainly distributed in more than forty sites about car interior roof, door linings, carpets, seats, seat belts, insulation blankets, luggage compartment liner, sealed filter felt. Car during transport due to electrical short circuit, engine failure, traffic accidents and other reasons are easily cause a fire, causing property damage, personal injury or death. The flammability of automotive interior trim in an accident tends to increase the degree of fire. Therefore, the flame retardancy of automotive interior materials have greater control of realistic significance in here briefly interior common flame retardant levels of testing methods
Automotive interior materials usually refers to a single material used in automotive interior parts or laminated composite materials, such as a seat cushion, a seat back, seat covers, seat belts, headrests, armrests, movable folding roof, all decorative after the liner (including door fender, side panels envelope after envelope panels, car roof lining), dashboard, glove compartment, interior shelves plate or sill plate, curtains, floor covering, sun visor, wheel cover, hood cover, and any other indoor organic material, filler material to absorb impact energy, gear, etc. when including crash. Common horizontal or vertical combustion test method is a specimen holder in the U-shaped bracket, the combustion chamber at a predetermined height with the flame ignited the free end of the specimen after a certain time, to determine whether the specimen flame extinguished, or when off, and the sample combustion and combustion of the distance from the elapsed time, and then the burning rate can be calculated, in such a way to characterize the flame resistance. The entire test is done in a standard combustion chamber.

Oxygen index (OI) refers to the specified conditions, material minimum oxygen concentration required for combustion flame in a mixed gas stream of oxygen and nitrogen, oxygen volume occupied by the numerical percent expressed evaluate plastics and other a representation method of polymer material combustion relativity, in order to determine the degree of difficulty of the material in contact with the flame burning in the air. The evaluation method is very effective, and therefore subject to the world's attention. The principle is that a sample is fixed vertically upward gas mixture of oxygen and nitrogen in the combustion tube in a transparent, light top specimens, observe the combustion characteristics of the sample, the sample or specimen continuous combustion time and length of combustion given criterion compared by different oxygen concentrations in a series of experiments to estimate the minimum concentration of oxygen
　　
Smoke density representation is material decomposition or combustion smoke has clouded the degree of light and vision under the given conditions. Smoke is dispersed solid particles visible, but does not emit air suspension formed, and this is a solid particulate material produced by burning or sublimation. Smoke is a risk factor for the most serious fire, because visibility allows people evacuated from the fire building to help firefighters find the site of the fire and put out, and greatly reduce the visibility of smoke and suffocating. Raw materials and smoldering smoke of burning out is different. The shorter the time to fire evacuees and smoke density and smoke the greater the density of the material, the faster growth can provide.
In fact, the most commonly used method to improve the flame retardancy of the flame retardant is added by processing raw materials to achieve. Common flame retardants include brominated flame retardants, phosphorus-containing flame retardants, nitrogen containing flame retardants and inorganic metal hydroxides and oxides. Flame retardants currently used in our country, the proportion of halogen high (estimated at more than 50%), and where the bulk of long-term human-based product and controversial PBB & PBDE. The amount of inorganic flame retardants rarely, estimated at 15% or less (not including antimony), while the proportion of the United States, Western Europe and Japan, the three major markets of the inorganic flame retardant products are 50% -55%, 40% -45 % and about 30%. China's current production of the larger flame retardants are low-end products can not meet some of the needs required for the high-tech industry, flame retardant engineering plastics. EU RoHS Directive from the environmental point of view clearly defines the limits of the use of brominated flame retardants, and thus our need to develop a non-halogen, low smoke, low toxicity, high efficiency characteristics of the new flame retardant technology
　

More about Vertical Flammability Test

VTEC Vertical Flammability Test Testing Standards: ASTM D6413-99, DOC-FF 3/71, CALIF TB-117, GB/T 5455, CPAI-84
Vertical Flammability Test Applications:

Vertical Flammability Chamber for measuring the vertical flame spread for children’s’ sleepwear, fabrics, other textile materials or resilient filling materials used in upholstered furniture. Comprises a draft free stainless steel cabinet with observation window and back wall painted black for easy test viewing. The different specimen holders and associated hard wares are dependent on the test standards. Automatic Gas Control System could easily control the combustion process.

 Vertical Flammability Test Product Information:

A. Designed with a sealing stainless steel combustion cabinet with observation window;

B. Fitted with standard combustion chronograph, for accurate detection of flame spread rate;

C. Different specimen holders and associated hardware for various test standards;

D. Automatic Gas Control System including solenoid control gas valve and automatic ignition timer and controls.
Configuration and consumables of Vertical Flammability Test:

AUTOMATIC GAS CONTROL, 230V Automatic Gas Control System

Accessories for ASTM D6413-99 TEST PKG(VFC,REQ)，FTMS 191-5903(Fabrics)

Include: 

- 1 x Burner

 - 5 x Specimen Holders

 - 1 x Weights

 Optional：

 1. CHILD.SLEEPWEAR TEST PKG (VFC, NA)

 Accessories for DOC-FF3/71 (Children’s’ Sleepwear)

 Include:

 - 1 x Burner

 - 5 x Specimen Holders

 2. CALIF.TB-117 TEST PKG

 Accessories for CALIF TB-117 (Resilient Filling Materials Vertical)

 Include: 

- 1 x Burner 

- 5 x Specimen Holder 

- 1 x Weights 

3. CPAI-84 TEST PKG 

Accessories for CPAI-84(Tent) 

Include: Burner, Specimen Holder, Weights

You can follow as below, Qinsun Instruments Co., LTD, Address: No. 258 Banting Road, Shanghai, Zip Code: 201199Phone: +86-21-6420 0566 Fax: +86-21-6420 0566-810 E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.

ICI Mace Snag Tester

ICI Mace Snag Tester

Date: 2016-5-4 Author: QINSUN

ICI Mace Snag Tester product description

ICI Mace Snag Tester Testing Standard:

ASTM D3939，GB/T 11047，JIS L1058

ASTM D3939 Standard Test Method for Snagging Resistance of Fabrics (Mace)

GB/T 11047-2008 Textiles. Evaluation for the snagging degree of fabrics. Mace test method

JIS L1058-2005 Test methods for snag of woven fabrics and knitted fabrics

ICI Mace Snag Tester Applications:　　

For evaluating degree of outerwear knitted silk fabric and other easy to hook wire hook, which is especially suitable for chemical fiber, filament and textured yarn fabric. Fabrics, non-woven fabric and tufted fabric having a mesh structure does not apply

ICI Mace Snag Tester is designed for rapidly determining the tendency of fabrics to snag (pull yarn loops from the fabric) in normal wear.

ICI Mace Snag Tester principle：

Cylindrical sample sets on the drum, with a chain hanging hammer placed on the surface of the sample. When the drum is rotated at a constant speed, the hammers randomly flips the sample surface, beating, and hook the sample, the sample surface to produce hook wire. After a predetermined number of revolutions, compared to the standard sample according to the degree of snagging a sample rating

ICI Mace Snag Tester usage & scope

ICI Mace Snag Tester adapted to detect outerwear knitted and woven fabrics and other easy to hook wire fabric, especially for synthetic filament textured yarn and fabric hook wire performance, which can quickly detect fabric wear under normal conditions produce snagging phenomenon is the degree of difficulty (coming out from the fabric yarn hook).

Product details：

The instrument is equipped with tanks and observation card comparison pattern different fabric structure. Test with four rolls (put the test fabric), tungsten carbide ball hammer head by a predetermined control electronic counter

　

　Technical Parameters of ICI Mace Snag Tester：

　　1. Test specimen dimensions：220mm×330mm;

　　2. Drum diameter：82mm;

　　3. Drum length：210mm;

　　4. Mace Ball: WC;

　　5. Mace diameter：31.8 mm;

　　6. Mace Weight：135g;

　　7. Mace projecting length：9.5 mm;

　　8. Mace Sik: 11 needles

　　9. Stapling exposed：10mm;

　　10. Tip radius：R0.13mm;

　　11. Working width of guide rod：125mm;

　　12. The distance between the hammer and the guide rod：45mm;

　　13. Test station：NO4;

　　14. Speed Test：60rpm;

　　15. Dimensions：1007×508×405mm (40×20×16 inch)(L×W×H);

　　16. Weight: about 90kg;

　　17. power：1∮，AC220V，50Hz，3A。

Annex：

　　1、1 package Tungsten needle  (12 / pack)

　　2、1 Felt（4 / pack）

　　3、on set of Referring Figure Card to the hook

　　4、Rating Light box (optional)

　　5、Shape Rack：4

　　6、dimensions： 922×450×400mm (l×w×h)

　　7、weight：About 60kg

For more details, view on http://www.qinsun-lab.com/Products/ICI-mace-snag-tester.html#, you can follow as below, Qinsun Instruments Co., LTD, Address: No. 258 Banting Road, Shanghai, Zip Code: 201199Phone: +86-21-6420 0566 Fax: +86-21-6420 0566-810 E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.