QB/T 4624-2013Thermal insulation containers - Foam boxes (English PDF)

3.1 foam box

a plastic container with an inner container (inner liner) and an outer protective

layer (shell) or an inner and outer layer integrally formed with a layer of filler in

the middle to reduce heat transfer between the outer and the inner container

NOTE Usually, incubators are used to store pre-packaged food and/or beverages, etc..

insulation barrels are used for direct storage of drinks into water, and direct drinking

through the water switch.

3.2 nominal capacity

nominal internal available capacity

NOTE In liters (L).

3.3 sealing cover

a container cover to prevent the beverage, water and other liquid leakage,

playing sealing effect

NOTE Normally, the sealing cap is provided with a sealing ring.

3.4 drainage port

a hole or nozzle set to discharge the water inside the insulation (cold storage)

box, which can be sealed in non-draining state

3.5 color heterogeneity

non-design changes in color on the same piece

[GB/T 2035-2008, 2.173]

3.6 flash

flashing

a) during the filming, a portion of the molten material which escapes from

the material chamber;

b) excessive plastic that exudes between mold joint surfaces.

[GB/T 2035-2008, 2.402]

3.7 orange peel

irregular pitting surface which looks pimple, pinhole and pit accumulated state,

similar to orange peel

[GB/T 2035-2008, 2.659]

3.8 dished

a symmetry distortion defect displayed on the flat or curved part of a plastic

product, which usually appears dished

5.5.1 Pour 1/3 of the nominal capacity of water into the sample. Cover the

sample lid. Lock the lock. In the normal use state, shake the sample up and

down at a distance of (200 ± 50) mm for 25 times in the time of (15 ± 2) s.

Check whether the switch, the switch connection, the drain, the seal and

other part is sealed, with or without leakage.

5.5.2 Fill the sample with water. Flat it on the platform with paper. After 30

min, check for leakages on all parts.

5.6 Handle fastness

In the sample, load a weight 2.5 times the mass of the water (equally

distributed at the bottom of the sample). Lift the handle to make the sample

off the ground. After 30 min, check the state of the handle.

For double handle or even handle sample, balanced lifting shall be carried

out.

5.7 Rod resistance to fatigue

Carry out the test in accordance with QB/T 2919.

5.8 Moving wheel fastness

5.8.1 Static load test. in the sample, load a weight 2.5 times the nominal

mass of water mass. Set the moving wheel down to the ground. Lift the other

end of the handle up so as to make the bottom of the sample and the ground

into a (45 ± 2)° angle.

5.8.2 Exercise test. in the sample, load a weight of 1/2 of full water mass.

Carry out the test according to Method A in QB/T 2920-2007.After 4 km travel,

check the moving wheel and the wheel axle.

5.9 Drop test

5.9.1 Principle

Before the test, install the sand in the sample, so as to make the sample fall

from the high-altitude and hit the base plane, the corners of the bottom edge,

and assess the extent of its damage.

5.9.2 Test equipment and materials used

a) Concrete (or similar) ground;

b) Sand. sand can be installed in polyethylene or cotton bag, to prevent the

center of gravity shift;

c) Lifting equipment.

b) great changes in material, formula, technology which may affect product

performances;

c) in normal production, after regular or accumulation of a certain amount

of production, a cycle test should be carried out (usually 6 months);

d) production resumed after discontinued production of more than one

year;

e) required by national quality supervision organization.

6.2.2 During the type inspection, it shall extract more than 5 products at

random from the products of the initial batch product as samples. Carry out

the inspection items specified in Clause 4 one by one. The type inspection

shall be determined as qualified after all items are qualified. The inspection

methods are in accordance with the provisions of Clause 5.

7.1 Marks

7.1.1 Each piece of product shall be indicated with the following information

on its marks.

product name, liner material, product function (insulation / cold storage /

sealing / direct storage of food / storage of pre-packaged food), nominal

capacity, enterprise's name, address, standard number of implementation,

production date or batch number.

7.1.2 Other information

It shall provide information on safe use, cleaning methods, precautions,

available accessories, spare parts and replacement parts.

7.2 Packaging

7.2.1 The packaging of the product should be clearly marked on the surface,

indicating the manufacturer or trademark.

7.2.2 The product packaging should be firm so as to prevent surface

damage.

7.3 Storage

7.3.1 The storage shall be dry, ventilated and moisture-proof.

7.3.2 The stacking height shall not exceed 3.5 m. It shall be stacked neatly

to avoid collapse.

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