LY/T 3132-2019Sliding wood-based door (English PDF)

5.1 Materials

The materials used for wooden sliding doors should generally meet the requirements of Table 1. According to customer needs, the supply and demand sides can be determined through negotiation.

Table 1 Quality requirements of main and auxiliary materials for wooden sliding doors

Material name quality requirements Wood should meet the requirements of GB/T 34742-2017 Laminated timber shall meet the requirements of LY/T 1787.

Dipping film paper facing people Build plate Formaldehyde release GB 18580-2017 Requirements Other properties should meet GB/T 15102-2017 and GB/T 34722-2017 requirements.

PVC film facing

Artificial board

Other properties shall meet the requirements of LY/T 1279-2008.

Decorative veneer man-made Other properties shall meet the requirements of GB/T 15104-2006.

glass

Its performance should meet the requirements of GB/T 26695-2011. Framed sliding doors are not subject to this limit.

system. Wooden sliding doors used in public places, "nominal thickness is not less than 5mm", steel is recommended of glass.

Edge banding meets the requirements of QB/T 4463-2013.

Hardware Parts

The physical and chemical properties of hardware accessories should meet the requirements of relevant standards. After the salt spray corrosion resistance test, the surface should be free from defects such as swelling, blisters, peeling, rust, discoloration and loss of light.

5.2 Specifications and deviations

5.2.1 Dimensional deviation requirements

The dimensional deviation of wooden sliding doors shall meet the requirements of Table 2.

Table 2 Dimension deviation unit is mm

5.2.2 Form and Position Tolerance

The shape and position tolerances of wooden sliding doors shall meet the requirements of Table 3.

Table 3 Form and Position Tolerance

5.3 Appearance quality requirements

5.3.1 Appearance quality of solid wood sliding door and veneer sliding door

The appearance quality of solid wood sliding door and veneer sliding door shall meet the requirements of Table 4.

Table 4 Appearance quality of solid wood sliding door and veneer sliding door

Requirements for inspection items Decorative Visual color and beautiful pattern Pattern consistency Material color unevenness, discoloration and discoloration are not obvious Dead knot, hole Holes, jackets, Resin lane Half alive, dead, holes, Jacket and resin lane, gum lane Defects per square meter the total number of the largest single diameter of half joints/mm 10, less than 5 is not considered Dead joint, wormhole, hole single maximum diameter/mm is not allowed Jacket single maximum diameter/mm 10, less than 5 Resin canal, gum canal, pith plaque maximum single diameter/mm 10, less than 5 Item deviation Height ± 2 Width ± 1.5 Thickness ± 0.5 Project tolerance Verticality and edge straightness<=1.0mm/1m Surface flatness <= 1.0mm/500mm Warpage <=0.15% Decay is not allowed crack Single width/mm 0.3 Single length/mm 100 Stitching Single width/mm 0.3 Single length/mm.200 Maximum single width of lamination/mm Bubbling and delamination are not allowed Sagging, indentation, and bulging are not allowed Patches, Material color, pattern and surface Consistency Difficult to distinguish Burr groove marks, knife marks, scratches are not obvious Sand permeation width/mm 3, only allowed at the edge of the board Other defects do not affect the decorative effect Processing of corrugations is not allowed Film scratches * Not obvious Paint sag * Not allowed Film bubbling * Not allowed Leakage paint * not noticeable Contamination (including grooved frame color parts) Pinhole * colored paint, diameter <=0.3mm, and <=8 pieces/door Surface paint film wrinkle * cannot exceed 0.2% of total area of door leaf or door frame Film particles and grooves linear part * smooth feel the frame fan line type combines part of the frame fan line type. The dividing line is smooth, uniform and consistent.

Color difference is not obviously allowed Particles, pits * Not allowed

Note 1. Excluding stacking, bulging, and layering of solid wood sliding doors;

2. paint finishing is not applicable to the appearance quality requirements of plain sliding doors;

3. When the surface is opaque painted, no inspection items and requirements unrelated to paint are required. Mark "*" for paint finishing requirements.

5.3.2 The appearance quality of composite sliding doors (PVC, paper with impregnated plastic film) shall meet the requirements of Table 5.

Table 5 Appearance quality of composite sliding door (PVC, impregnated paper surface)

Requirements for inspection items Color unevenness is slightly allowed Color mismatch is obviously not allowed Bubbling is not allowed Drums are not allowed Slight wrinkles allowed Defects and stains 1m2 <=3mm2 Slight indentation Scratches are not allowed Partial defects and chipping are not allowed Surface tearing is not allowed Dry and wet flowers are not allowed Bottom-through and glue-through are not allowed Surface pores are not allowed

Note 1. Minor means that normal vision can be seen within 0.5m from the board surface, not obvious means that it can be seen from 1m away from the board surface, obviously means within 1m Visible outside.

2. Dry and wet flowers are the requirements for sliding door with impregnated film.

5.4 Physical and chemical performance requirements

The physical and chemical properties of wooden sliding doors should meet the requirements of Table 6. Special requirements can be agreed between the supply and demand sides and clearly stated in the contract.

Table 6 Physical and chemical properties of wooden sliding doors

Project unit index value Water content% 6.0 ~ 14.0 Surface bonding strength MPa >=0.60 Surface pollution resistance level 4 or 5 Film adhesion-0 or 1 Film hardness->=2H the amount of formaldehyde emission should meet the requirements of GB 18580-2017 TVOC should comply with HJ 571-2010 Note. 1. Non-paint finishes do not test paint film adhesion and paint film hardness;

2. Excluding the surface bonding strength of solid wood sliding doors;

3. The paint film adhesion is not measured.

6.1 Appearance quality inspection

6.1.1 The height of the inspection platform is about 700mm.

6.1.2 Three 40W fluorescent tubes are used as the light source. The distance between the tubes is about 400mm. The length of the tube is parallel to the length of the door.

The height of the platform is about 2m, and natural light should not affect the inspection.

6.1.3 The inspector shall have normal vision (or corrected vision), and inspect at both ends of the door length. The viewing distance is 0.5m ~ 1.5m and the viewing angle is 30 ° ~ 90 °.

This is the degree of warpage, expressed as a percentage and accurate to 0.01%.

6.2 Dimension and deviation measurement

6.2.1 Inspection tools

a) Steel tape measure with a length of 3000mm and a graduation value of 1 mm

b) Steel ruler, length.200mm and 500mm, division value 0.5 mm

c) Micrometer with a division value of 0.01 mm

d) Vernier caliper with a division value of 0.02 mm

e) feeler gauge with a division value of 0.01 mm

f) A square ruler with a length of 300 mm and a graduation value of 0.02 mm

g) Fine steel wire with a diameter of 0.5 mm

6.2.2 Inspection method

6.2.2.1 Length, width and thickness

The length and width shall be implemented in accordance with 8.2 of GB/T 19367-2009. The thickness shall be implemented in accordance with 8.1 of GB/T 19367-2009.

6.2.2.2 Verticality and edge straightness

The verticality shall be implemented in accordance with 8.3 of GB/T 19367-2009. The straightness of the edges shall be in accordance with the provisions of 8.4 in GB/T 19367-2009.

6.2.2.3 Surface flatness

Place the 500mm long steel ruler completely on the door leaf, and use a feeler gauge to measure the maximum gap between the steel ruler and the door leaf to the nearest 0.1mm.

6.2.2.4 Warpage

Place the concave side of the product on the water platform and connect the two opposite corners of the door with thin steel wires. Use a steel ruler to measure the maximum chord height to the nearest 0.5mm.

The ratio of the maximum chord height to the diagonal is the degree of warpage, expressed as a percentage and accurate to 0.1%.

6.3 Physical and chemical performance test

6.3.1 Provisions for test piece production, test piece size and quantity

The sawn test specimen shall meet the size and quantity requirements of the sawed test specimen. See Table 7 for specimen size, quantity and number. Sampling site recommendations Referring to Figure 1, the specific sampling locations can be adjusted according to actual conditions, but it should be ensured that the test specimens are relatively evenly distributed in the sample.

Table 7 Size and number of test pieces for physical and chemical properties of wooden sliding door

Inspection item test piece size/mm test piece number/block test piece number Moisture content 75.0 × 75.0 6 (1) 1 piece on left and right, upper or lower Position 1 block, 3 blocks in other parts. Phase between test pieces at least 100mm away, remove the surface decoration layer.

Surface bonding strength 50.0 × 50.0 6 (2) The test pieces should be separated by more than 100mm. The paint film should be sanded.

Surface pollution resistance 100.0 × 100.0 1 (3) Paint film adhesion 300.0 × 100.0 1 (4) Film hardness 300.0 ×.200.0 1 (5) the amount of formaldehyde released shall be in accordance with the provisions of GB 18580-2017.

TVOC is conducted in accordance with HJ 571-20102010 (3) (4) (5) (6)/(7) (3) (4) (5) Sample length

Figure 1 Schematic of sample preparation

6.3.2 Moisture content

Implemented in accordance with 4.3 of GB/T 17657-2013.

6.3.3 Surface bonding strength

According to GB/T 17657-2013 4.15.

6.3.4 Surface pollution resistance

According to the provisions of 4.41 in GB/T 17657-2013, the pollutants are black coffee and acetone.

6.3.5 Paint film adhesion

According to the provisions of 4.56 in GB/T 17657-2013, the cutting pitch is 2mm.

6.3.6 Paint film hardness

Implemented in accordance with 4.57 of GB/T 17657-2013.

6.3.7 Formaldehyde release

Implemented according to GB 18580-2017.

6.3.8 TVOC

Implemented according to HJ 571-2010.

7.1 Inspection classification

7.1.1 Factory inspection

Factory inspection items include.

a) appearance quality;

b) specifications;

c) Water content in physical and chemical properties.

7.1.2 Type inspection

Type inspection items include.

a) appearance quality;

b) specifications;

c) All physical and chemical properties.

Type inspection should be carried out in one of the following situations.

a) When there are major changes in raw materials and production processes;

b) Stop production for more than 3 months and resume production;

c) during normal production, the inspection shall be no less than once a year;

d) when new products are put into production or converted;

e) When the quality supervision agency requests the type inspection.

7.2 Group approval principle

The same shift, the same type of products, the same specifications and a certain number of batches.

7.3 Sampling methods and determination principles

7.3.1 Sampling method

7.3.1.1 For quality inspection of wooden sliding door products, samples shall be taken from the same batch of products according to regulations.

7.3.1.2 Inspection of dimensions and deviations

The double sampling plan in GB/T 2828.1-2003 is adopted. The inspection level is I and the reception quality limit is 4.0. See Table 8 for details.

Table 8 Dimensions and deviation sampling plan (unit. fan)

Batch range sample size cumulative sample size acceptance number rejection number <=150 first second 151 ~ 280 first second 281 ~ 500 first second 501 ~ 1200 first second 1201 ~ 3200 first second

7.3.1.3 Inspection of appearance quality

The double sampling plan in GB/T 2828.1-2003 is adopted. The inspection level is II and the reception quality limit is 4.0. See Table 9 for details.

Table 9 Sampling plan of appearance quality (unit. fan)

Batch range sample size cumulative sample size acceptance number rejection number <=150 first second 151 ~ 280 first second 281 ~ 500 first second 501 ~ 1200 first second 1201 ~ 3200 first second

7.3.1.4 Physical and chemical performance test

The sampling plan for physical and chemical performance inspection is shown in Table 10. When the initial inspection sample inspection result is unsatisfactory, it is allowed to repeat the inspection once.

Double check the samples in the product to re-check the unqualified items. After the re-checks, all the items are qualified and judged as qualified; otherwise, they are judged as unqualified.

Table 10 Sampling plan for physical and chemical properties (unit. fan)

Number of finished products in inspection batches <=1000 2 4 >=1001 4 8

7.3.2 Decision principles

7.3.2.1 Determination of moisture content and surface adhesive strength

a) Moisture content. The arithmetic average value of the moisture content of the test piece reaches the standard prescribed value, and it is judged as qualified, otherwise it is judged as unqualified.

b) Surface gluing strength. The arithmetic average value of the surface gluing strength reaches the standard prescribed value, and the minimum value reaches 80% of the standard prescribed value.

Pass or fail

7.3.2.2 The surface resistance to pollution, paint film adhesion, and paint film hardness meet the requirements of the corresponding product, the performance is judged to be acceptable, otherwise it is judged to be incompatible grid.

7.3.2.3 The amount of formaldehyde released shall be determined in accordance with the provisions of GB 18580-2017. TVOC is determined in accordance with HJ 571-2010.

7.4 Comprehensive judgment

The product's appearance quality, specifications and physical and chemical performance inspection results should meet the requirements of the corresponding product category, then it is judged to be qualified; otherwise, Failed.

8.1 Logo

The manufacturer's name, address, telephone, product name, solid wood door wood species, actual product should be marked on the appropriate part of the product or on the packaging label.

The veneer tree species, model, trademark, production date and product category, implementation standards, specifications and quantities of wood composite doors. Logo requirements can also be determined by the supply and demand sides agree.

8.2 Packaging

Enterprises in packaging can provide detailed installation and operation instructions according to the characteristics of the product. Packaging to protect the product from bumps, scratches and dirt damage. Packaging requirements can also be agreed between the supplier and the buyer.

8.3 Transport and storage

During transportation and storage, the product should be placed flat to prevent contamination, and it should not be exposed to moisture, rain and exposure.

During storage, they should be stacked separately according to category and specifications, and each stack should be marked accordingly.