General technical conditions of the hottest grain

General technical conditions for grain and oil processing machinery

sb/t 10148.12-931 subject content and scope of application this standard specifies the technical requirements, test and inspection rules of product packaging

this standard is applicable to grain and oil processing machinery products

2 reference standard GB 153.2 grading of Coniferous sawn timber

gb 191 Pictorial marking of packaging, storage and transportation

gb 738 hardwood plywood

gb 1349 coniferous plywood

gb 1413 external dimensions and weight series of cargo containers

gb 1834 minimum internal dimensions of general-purpose containers

gb 1923 hard fibreboard

gb 4817.2 grading of Hardwood sawn timber

gb 4879 anti rust packaging

gb 4896 ~ 4905 particleboard

qb 324 cartons of paperboard

qb 605 kraft liner paperboard

3 terminology 3.1 lattice case

a packaging box composed of hard plate-like materials at certain intervals on each side

3.2 closed box

a fully closed packing box composed of hard plate-like materials on each box surface

3.3 skid

is loaded at the bottom of the box along the length of the box, and is a component that plays the role of carrying products, lifting and sliding packages

3.4 sleepers

and skids are arranged in a vertical direction, and two or more skids are connected to form a base, which is a component to carry products

4 packaging technical requirements the manufacturer shall select appropriate internal and external packaging and packaging materials according to the product characteristics and storage and transportation conditions to ensure the integrity of the product

4.1 preparation of product packaging

4.1.1 products should be inspected and meet product standards before packaging

4.1.2 products should be cleaned before packaging, and all surfaces that need rust prevention should be derusted, cleaned and oiled according to the provisions of GB 4879

4.1.3 packaging materials:

4.1.3.1 all needle and broad-leaved trees can be used as packaging materials, but the structures such as skids, sleepers and frames should be mainly pine or wood similar to pine

4.1.3.2 the moisture content of skids, sleepers and skids shall not be greater than 30%, and that of box plates shall not be greater than 25%

4.1.3.3 the materials of main bearing components such as skids, sleepers and frames shall not be lower than the second-class materials specified in GB 153.2 and GB 4817.2. The box board is sawn and generally not planed

4.1.3.4 when skids and sleepers are replaced by materials other than wood, they shall undergo safety tests and meet relevant standards

4.1.3.5 plywood for box making shall comply with the provisions of GB 1349 and GB 738

4.1.3.6 the particleboard for box making shall comply with the provisions of GB 4896 ~ 4905

4.1.3.7 the hard fibreboard used for box making shall comply with the provisions of GB 1923

4.1.3.8 the cardboard used for cartoning shall comply with the provisions of QB 324 and QB 605

4.1.4 packing case:

4.1.4.1 packing case structure

4.1.4.1.1 packing case structure shall be designed according to product (package) characteristics, packaging weight, transportation requirements and packaging methods

4.1.4.1.2 generally, the width of the grid used in the lattice box is not less than 80 mm, and the width of the side plate is not less than 100 mm. The gap between the grid plates should be determined according to the size of the packed items in the box, and generally should not be greater than 150 mm. If necessary, reed mats, bamboo mats or wicker braids can be nailed in the lattice box, and waterproof layers such as linoleum can be nailed as needed

4.1.4.1.3 the felt used for the waterproof layer shall be overlapped, and the overlapping length shall not be less than 40 mm. And use small wooden strips to compress and nail firmly

4.1.4.1.4 the box plate can be assembled by flat butt joint (Fig. 1a), blank holder staggered joint (Fig. 1b) or mortise joint (Fig. 1c). If it is not specified in the drawings and technical documents, it shall be butt jointed with flat joint

a.b.c. figure 1

4.1.4.1.5 the height of the skid should generally not exceed 200 mm, and half of the height of both ends of the skid should be made into a 45 ° ~ 55 ° guide angle (Figure 2)

4.1.4.1.6 when the product is fixed on the base plate through the skid, the cross section of the sleeper is generally the same as that of the skid

4.1.4.1.7 if the length (width) of the box is greater than 1500 mm, columns should be added; If the box height is greater than 600 mm, diagonal bracing shall be added

figure 2

4.1.4.1.8 the thickness of the wall panel can be selected according to table 1 according to the weight of the packaging

Table 1

weight of packaged goods, kg wall thickness, mm ≤ 1000

> 1000 ~ 5000

> 500015

18

214.1.4.1 this relatively soft aquapro 37 thin foam is especially suitable for the key use of enhanced waterproof protection 9. When the bottom plate is not load-bearing, its thickness can be based on the thickness of the wall plate. When the packaged goods are fixed on the base plate through sleepers, the thickness of the base plate can be selected according to table 2 according to the load-bearing

Table 2

weight of packaged goods, thickness of kg base plate, mm ≤ 1000

> 1000 ~ 5000

> 500021

25

354.1.4.2 cartoning requirements

4.1.4.2.1 the overall dimension and weight of the packaging box should comply with the regulations of the transportation department on over limit and overweight of transported goods

4.1.4.2.2 products transported in containers shall meet the requirements of container transportation. The overall dimension, weight and minimum internal dimension of the container shall comply with the relevant provisions of GB 1413 and GB 1834 respectively

4.1.4.2.3 the packing box shall be equipped with forklift holes or slots

4.1.4.2.4 rain proof

a. all products that need rain proof should be lined with waterproof materials in the closed box, such as asphalt felt, asphalt paper, plastic film, plastic composite paper, etc

b. ridge type or inclined tensile testing machine can be used for large packing cases to improve the rainproof performance

c. for cartons with rain proof and moisture-proof requirements, the external surface of the carton shall be painted with moisture-proof paint, such as varnish, paraffin, etc; The inner wall of the box shall be padded with plastic composite paper or moisture-proof paper, and the products can also be put into plastic bags. If PVC plastic bag is used, it shall not contact with the paint layer of the product

4.1.4.2.5 moisture proof

a. all products that need moisture-proof should be made into containers with moisture-proof materials (such as aluminum foil composite film, plastic film, etc.) for sealed packaging. Before packaging, the cloth bag filled with desiccant (such as silica gel, etc.) should be put into the container, and then packaged after sealing

b. silica gel should be dried before use to make its moisture content less than 4%. Put silica gel in cloth bags (10 ~ 200 g per bag), then hang it firmly or place it in sealed containers, and weld it as soon as possible. The silicone bag shall not be in direct contact with the metal processing surface

4.1.4.2.6 mold prevention

all products that need mold prevention should take corresponding mold prevention measures, such as mold prevention treatment, placing desiccants, opening ventilation windows, etc

4.1.4.2.7 rust prevention

a. choose different types of rust prevention materials according to the characteristics of the product. Such as antirust grease, vapor phase inhibitor (paper), strippable plastic, etc

b. the important finishing surface of the product shall not contact the base of the packing box, the fastening square wood or the pressing plate. When contact is necessary, rust proof, moisture-proof and shockproof materials shall be used at the contact

4.1.4.2.8 shockproof

a. all products that need shockproof should be packaged with shockproof packaging

b. commonly used shockproof materials include corrugated paper, dry wood silk, expandable polystyrene foam, sponge rubber, plastic air cushion, etc

c. according to the characteristics of the product, different shockproof methods are adopted:

in the gap between the product and the packaging box, fill with dry wood silk, wordless paper silk, etc., and plug the product tightly

adopt expandable polystyrene foam plastic, foaming and molding according to the shape of the product, and then put the product into the packaging box

use plastic air cushion, sponge rubber pad, corrugated paper, etc. to fix the product pad in the packaging box

4.2 product packaging

4.2.1 packaging requirements

4.2.1.1 product packing shall be carried out according to the items and quantities specified in the packing list. Generally, the inner package should be attached with a label for identification

the transmission tape on the product should be removed; Rubber rollers, rubber hoses, adhesive tapes, hydraulic and pneumatic control devices and other rubber products should be placed properly, not with grease. Why should the new national standard emphasize that the contact should be tested and identified by the data such as the combustion growth rate index (f/gra) w/s), total heat release within 600s (thr600s), m). Small parts (mainly connectors) after disassembly should be packed in situ or packed in small boxes and fixed in the outer packing box as far as possible. Each scattered packing piece shall be attached with a label indicating the code, name and quantity of the piece

4.2.1.2 the moving part, extension part and suspension part of the machine should be adjusted to the minimum outline size and locked, or supported and fixed to prevent collision damage during transportation

4.2.1.3 electrical appliances and instruments shall be tightly packed with waterproof paper or plastic film, and antirust grease shall not be used

4.2.1.4 fixation of the machine in the box:

4.2.1.4.1 the machine and parts should be fixed on the chassis of the packing box, and the bolts used for fixing must be firm and reliable, and must not be loose. If it cannot be directly fixed on the chassis, sleepers and braces can be added, and then press plates and bolts can be used for fastening

4.2.1.4.2 when the product is fixed on the skid with bolts, the bolt head should sink into the skid (see Figure 3)

figure 3

4.2.1.4.3 all packaging items should be leveled, clamped and fixed. Soft liners such as cardboard and felt must be padded at the contact between the clamping parts and the parts with high precision on the machine

4.2.1.4.4 when packing products, the center of mass should be in the middle and lower. Products with high center of mass should be packed horizontally as far as possible

4.2.1.4.5 a certain distance (generally not less than 25 mm) should be left between the packed articles and the inner side of the outer packing box wall panel. To prevent collision damage during transportation

4.2.1.5 random documents:

4.2.1.5.1 random documents should generally include:

a. packing list

b. product certificate

c. product instructions

d. list of attached accessories

e. other documents

4.2.1.5.2 the accompanying documents shall