This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of rotary paper machines with a net paper width of less than 2640mm. This standard is applicable to rotary paper machines that produce cultural paper with a basis weight of 18 to 80g/m2 and a working speed of no more than 150m/min. Short-net paper machines and rotary paper machines for making packaging and other papers can also be used as a reference. QB/T 1626-1992 Rotary Paper Machine QB/T1626-1992 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
Cylinder Paper Machine
1 Subject Content and Scope of Application
QB/T 1626-1992
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of cylinder paper machines with a net paper width of less than 2640mm.
This standard is applicable to cylinder paper machines that produce cultural paper with a basis weight of 18~80g/m2 and a working speed of no more than 150m/min. Short-net paper machines and cylinder paper machines that produce packaging and other papers can also be used for reference. 2 Reference standards
GB191 Pictorial markings for packaging, storage and transportation
Methods for determination of size, skewness, basis weight, thickness and tightness of paper and paperboardGB/T451
GB/T 452
GB/T453
GB/T 454
GB/T 455
GB/T 456
GB/T 457
GB/T 458
GB/T 459
GB/T460
GB/T 461
GB/T 462
GB/T 463
GB/T 464
GB/T465
GB/T 6388
Determination of longitudinal, transverse and front and back properties of paper and paperboardDetermination of tensile strength and elongation of paper and paperboardDetermination of bursting resistance of paper
Determination of tear resistance of paper and paperboard
Determination of smoothness of paper
Determination of folding resistance of paper
Determination of air permeability of paper
Determination of elasticity of paper
Determination of sizing degree of paper and paperboard
Determination of absorbency of paper and paperboard
Determination of moisture content of paper and paperboard
Determination of ash content of paper and paperboard
Determination of strength loss of paper after heat treatment
Determination of wet strength of paper
Marking of shipping and receiving packages
GB/T 14253wwW.bzxz.Net
General technical conditions for light industrial machinery
JB/T８ Product label
QBI1 Technical specification for construction and acceptance of pulp and papermaking professional equipment installation project QB/T1422.3 Technical conditions for ordinary cast iron rollers for common parts of papermaking machinery QB/T1422.4 Technical conditions for ordinary mesh cages for common parts of papermaking machinery QB/T1588.4 General technical conditions for painting of light industrial machinery ZBY91003 Technical conditions for cast iron drying cylinders for papermaking machinery 3 Technical requirements
3.1 Basic requirements
Approved by the Ministry of Light Industry of the People's Republic of China on November 10, 1992 196
Implemented on July 1, 1993
QB/T 1626-— 1992
3.1.1 Basic technical requirements of the product, cast iron parts, welded parts, forgings, machined parts, assembly, and painting shall comply with the provisions of GB/T14253. 3.1.2 The installation and acceptance of the product shall comply with the relevant provisions of QBJ1. 3.2 Product performance requirements
3.2.1 The paper machine shall run stably and reliably at the highest speed without load. 3.2.2 According to the variety and raw material ratio specified in the design, under normal process and representative products reaching rated output conditions, the quality of the finished paper shall meet the corresponding paper product standards.
3.2.3 The steady speed accuracy of the paper machine shall not exceed 0.6% when using a DC motor, and shall not exceed 1.0% when using an AC motor. 3.3 Quality requirements of main components
3.3.1 The quality of the round mesh cage shall comply with the provisions of QB/T1422.4. 3.3.2 The quality of the drying cylinder shall comply with the provisions of ZBY91003. 3.3.3 The quality of the press roller, idler roller and smooth roller shall comply with the provisions of QB/T1422.3. 3.4 Quality requirements for trial installation
3.4.1 Before each batch of products leaves the factory, 12 units shall be selected for trial installation (the total installation shall be carried out at the user's factory), among which the mesh cage, drying cylinder, press roller, idler roller and smooth roller can be replaced by special measuring shafts respectively. 3.4.2 The installation level of each component shall comply with the following provisions: a. Base plate: 0.08/1000 in the longitudinal direction and 0.06/1000 in the transverse direction; the cylinder surface of the drying cylinder is 0.12/1000;
The axis of the lower press roller is 0.08/1000.
3.4.3 The center distance tolerance of the base plate, crossbeam and frame T-slot is ±1.0mm. 3.4.4 The blanket corrector, movable scraper, movable water spray pipe and various pressure adjustment devices shall be light and flexible without obstruction. 3.5 Appearance quality requirements
3.5.1 The appearance surface should be flat and smooth, and the outer edges of the joints of adjacent parts should not have obvious misalignment. The walkway railings should be neat and beautiful. 3.5.2 The exposed processed surface should not have bumps and scratches, and should be coated with anti-rust grease. 3.5.3 The exposed non-processed surface should be painted and comply with the provisions of QB/T1588.4. 3.6 Safety and hygiene requirements
3.6.1 The noise (sound pressure level) during the operation of the paper machine shall not exceed 90dB (A). 3.6.2 Safety protection devices should be installed on the exposed rotating parts that are prone to personal injury or equipment damage. 4 Test methods
4.1 The manufacturing quality of the product shall be inspected in accordance with the methods specified in GB/T14253. 4.2 The installation and trial operation acceptance of the product shall be carried out in accordance with the methods specified in QBJ1. The speed of the paper machine is measured by a tachometer to measure the speed of the paper reel cylinder. Stability can be measured by touch and visual inspection. 4.3
The quality of finished paper shall be tested according to the test methods specified in GB/T451~465. 4.4
4.5 The steady speed accuracy of the paper machine shall be tested by measuring each transmission point within 15 minutes. 6 The test methods of the main components shall be tested according to the provisions of the relevant standards. 4.6
4.7 The level of the base plate, drying cylinder and the lower roller of the press shall be tested with a flat ruler, a feeler gauge and a frame level gauge according to the method specified in QBJ1. 4.8 The center distance of the T-slots of each part shall be tested with a steel tape measure or a special measuring tool. 4.9 The noise can be measured at three points on the operating side, 1m away from the frame and 1.5m high, and the maximum value shall be taken (noise outside the paper machine can be excluded). 5 Inspection rules
5.1 Factory inspection
5.1.1 Each product shall be inspected and qualified by the quality inspection department before leaving the factory and a product certificate shall be issued before it can leave the factory. 5.1.2 The quality of main components and appearance shall meet the requirements of 3.3 and 3.5. 197
5.1.3 The quality of trial installation shall meet the requirements of 3.4. 5.2 Type inspection
QB/T1626—1992
5.2.1 The paper machine shall be subject to type inspection during the trial production of new products or the trial production of old products; or when there are major improvements after production, which may affect product performance; or when the product is resumed after a long period of suspension or the factory inspection results are significantly different from the last type inspection, and when the national quality supervision agency proposes it. 5.2.2 One unit of the product to be type inspected shall be sampled from the same batch of products that have passed the factory inspection. 5.2.3 Products subject to type inspection shall be inspected for all items specified in this standard. Among them, 3.2 and 3.6 shall be inspected at the user's factory. 5.2.4 In the type inspection, if there are items that do not meet the requirements, they are allowed to be repaired or doubled for inspection. If they are still unqualified, the product will be judged as unqualified.
6 Marking, packaging, transportation, storage
6.1 Marking
6.1.1 Each paper machine should have a product nameplate fixed at the specified position. The type and size of the nameplate should comply with the provisions of JB/T8. The nameplate should indicate the following:
Model;
Product name;
Net paper width;
Paper making quantity;
Working speed;
Track gauge;
Weight;
Manufacturing date;
Factory number;
Manufacturer name.
6.1.2 The control points of electric and pneumatic controls should be clearly marked and consistent with their actions. 6.2 Packaging
6.2.1 Product packaging shall comply with the provisions of GB/T14253. 6.2.2 The packaging of drying cylinders, mesh cages and cast iron rollers shall comply with the relevant provisions of ZBY91003, QB/T1422.4 and QB/T1422.3 respectively. 6.2.3 The following technical documents shall be placed in the first box: a. Packing list of the whole machine;
b. Product certificate of conformity;
c. Product instruction manual.
6.2.4 Product hoisting and shipping and receiving marks shall comply with the provisions of GB/T6388 and GB191. 6.3 Transportation and storage
6.3.1 During transportation and storage, attention shall be paid to preventing rain and chemical corrosion. 6.3.2 The product should be unpacked and inspected every 6 months from the date of delivery, and oiled for rust prevention if necessary. Additional Notes:
This standard was proposed by the Technical Equipment Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Light Industry Machinery Standardization Center. This standard was drafted by the Shandong Second Light Industry Machinery Factory. The main drafters of this standard are Yang Degui, Liu Chuanjia, and Ju Lili. 198
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