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Amazon product inspection   Furniture Inspection by Huajian Company buy in Guangzhou
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Amazon product inspection Furniture Inspection by Huajian Company
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Amazon product inspection Furniture Inspection by Huajian Company

Code: 0574
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1011.05 CNY
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  • First-Article InspectionsQuality control inspections
  • QC InspectionAmazon product inspection
Description

Furniture Inspection by Huajian Company

 

 

On - site inspection of furniture

1. Furniture quality inspection is to use various testing methods to test furniture parts and products according to the indicators in the specified technical standards, and finally determine the quality of the product and supervise the quality of the product. Through the quality inspection, scientific data is used to reflect the actual quality level of the product, and the quality level is divided.

2. Basic steps for inspection of furniture products

Check marks - count the total number of boxes - determine the sampling quantity - measure the outer box size - weigh the outer box - shake test - drop test - inspection of packaging materials and accessories - furniture appearance inspection - furniture function inspection - other inspections - inspection report write

3. Furniture appearance quality inspection

During the appearance inspection, it should be under natural light or similar natural light (for example: 40W fluorescent lamp), with a viewing distance of 700~1000mm, and three people should jointly inspect it. Most of the same conclusions are used as the measured value. Including product dimension inspection, main dimension inspection of various products, woodworking quality and machining accuracy inspection, material quality and accessories quality inspection, finishing quality appearance inspection and product identification inspection. (Main dimensions of various products; limit deviation of product dimensions; warpage; foot stability; flatness;

4. Product appearance inspection

The main size of the product mainly refers to the functional size of the furniture product, including the length, width, height of the product shape and the functional size that meets the requirements of use. The limit deviation of the length, width and height of the product shape is generally positive and negative 5MM for wooden furniture and metal furniture, and some also depend on the type, form, purpose, use conditions and requirements of the furniture product. The limit deviation of matching or combined furniture products shall be positive or negative.

5. Mechanical test

Mechanical test is the basic basis for simulating the load that furniture may experience under normal use and habitual misuse as a mechanical performance test. Mechanical performance inspection includes strength inspection, durability performance inspection, stability inspection, and peel strength inspection of soft and hard cladding of various products.

Frequent problems in mechanical performance inspection, furniture mechanical testing, and after the test, focus on the following aspects of the product: parts and conditions that are broken or cracked; some firm parts are not permanently loose; some parts have a serious impact Wear, displacement or deformation of functions; loose hardware; inflexibility of moving parts, etc.

6. Basic requirements for material inspection

Dead knots and bark are not allowed in any part. Dead knot criteria: Black knots visible on both sides and knots that can be removed by hand are called dead knots.

parts ( such as table legs , chair legs, stair treads, bed legs) must never have dead joints. Legs and stair tread articulations are also not acceptable.

No knots are allowed in the connection parts (such as the upper wood tenon , punching, installation of embedded nuts, etc. ).

color difference is not obvious, and the products should be arranged for color comparison during inspection. Colors are based on swatches.

The moisture content of wood must be within the specified range.

7. Determination of moisture content:

1) The moisture content of wood is called wood moisture content. The moisture content of wood directly affects the quality and performance of furniture products. The moisture content of wood used to make furniture should be different according to the climatic conditions of the area where it is used, as well as indoor or outdoor use conditions. In order to ensure the product quality of furniture, the moisture content of wood should be determined according to the type of furniture product, use, conditions of use, technical requirements, quality requirements and the use of local equilibrium moisture content.

2) Determination method of wood moisture content

( 1) Electrical measurement method: use a moisture content tester, select three parts at different positions, and select three points on each part to measure once, and obtain the average value measured on the three parts respectively. Take the largest average value as the measured value of the wood moisture content of the test piece.

( 2) Induction test: choose a wood tester with a measurement accuracy error of not more than ±2% , the temperature of the object to be measured is 0 to 40°C, and the relative humidity of the environment is less than 85% ; the measurement should be adjusted according to the type of wood and the thickness of the test object. ; Since the induction test has penetrability , the test object needs to be suspended so as not to affect its real value.

( 3) Probe test: choose a wood tester with a measurement accuracy error of not more than ±2% ; the temperature of the object to be measured is 0 to 40°C, and the relative humidity of the environment is

( 4) Quality method ( absolute dry experiment ): The quality method is a method of drying the moisture content test piece of wood until it is completely dry to measure its moisture content.

First, take the test piece of wood

( 20mmX20mm) small test piece. After blowing the water content test piece clean, immediately weigh its mass on a balance with an accuracy of 0.01g and a measuring range of not less than 200g, record the mass as M, and then place the test piece in a constant temperature of 103±2°C. Bake in the oven for about 6 hours, then take out and weigh the weight, make a record, and then put it back in the oven to continue drying. Then weigh it every 2h until the last two weighings remain unchanged, which is the absolute dry mass , denoted as Mo. In this way, the water content can be calculated as follows: W=(M - Mo)/Mo×100%

Since the moisture of the thin test piece is easily changed when exposed to the air, it should be noted that the test piece should be weighed immediately after intercepting the test piece or after taking it out of the oven.

Using the drying method to measure the moisture content of wood is accurate and reliable, and is not limited by the range of moisture content. However, the sample needs to be intercepted during measurement, and it takes a certain amount of time.

( 5) Paint adhesion test

Test equipment and tools: 1. Paint film adhesion tester or other instruments with equivalent test results; 2. Zinc oxide plaster (GB2771 - 81 medical plaster); 3. Brush; 4. Observation light: white frosted bulb 60W ; 5. Magnifying glass (4X)

Test methods: 1. Take three test areas (try not to use textured parts), the center of the test area is ≥40mm from the edge of the test piece, and the distance between the centers of the test area is ≥65mm; 2. Cut out two groups on the surface of the paint film in the test area at right angles to each other Each group of cut marks includes 11 parallel cut marks with a length of 35mm and a spacing of 2mm. All cuts should penetrate to the surface of the substrate, and the direction of the cut marks and the wood grain is approximately 45 degrees; 3. Use a brush to remove 4. Press the adhesive plaster on the cutting part of the test area by hand; 5. Uncover the plaster diagonally 6. Carefully examine it with a magnifying glass under the observation light

( 6) Drop test

Drop site: the more vulnerable corner, the shortest side adjacent to the corner, the second longest side adjacent to the corner, and the longest side adjacent to the corner. The face with the smallest area, the face opposite the face, the face with medium area, the face opposite the face, the face with the largest area, the face opposite the face. If the packaged goods are not damaged, they meet the quality requirements.

8. Quality inspection of hardware accessories:

Commonly used hardware accessories in furniture mainly include hinges (open hinges, dark hinges, door hinges, glass door hinges), connectors, drawer slides, sliding door slides, flip door hangers, handles, locks, latches, door suction , Shelf bearing, pulley, foot cover, bolt, round nail, etc.

Quality inspection of hardware accessories: It is necessary to ensure that the specifications and allowable deviations meet the standards or the requirements of the drawings; the shape, hole positions and allowable deviations of hardware accessories should meet the requirements of the drawings; all hardware accessories that are frequently opened, such as hinges, locks, Drawer slides, etc. , should be switched flexibly; the surface of hardware accessories should not be rusted.

9. Main packaging of furniture products

Flexible packaging: the packaging method of products using kraft paper, wax paper and cellophane. Small pieces of furniture, folding stools and chairs are used.

Stretch packaging: a packaging method that uses a stretch film with toughness and self - adhesion to fasten items.

Shrink wrap: Wrap the product with a heat - shrinkable plastic film, and then heat the film to shrink the product and wrap the product tightly

Corrugated box packaging: suitable for transport packaging for export and domestic sales, easy to handle and stack.

Collective packaging: Assemble scattered goods or several packages into a large packaging unit, which can be loaded and unloaded by forklifts and forklifts in all aspects of transportation, and the whole pallet can also be directly loaded and unloaded on the shelves. Effectively protect the product and reduce breakage and loss. It is convenient for the transportation, loading and unloading mechanization of commodities.

 

 

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Amazon product inspection Furniture Inspection by Huajian Company
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