LY/T 1454-2018 English PDF

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LY/T 1454-2018: Test code for accuracy of wood based panel machinery
Status: Valid

LY/T 1454: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
LY/T 1454-2018	419	Add to Cart	4 days	Test code for accuracy of wood based panel machinery	Valid
LY/T 1454-1999	RFQ	ASK	3 days	Inspection for Precision of Artificial Board Machinery - General	Obsolete

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Basic data

Standard ID: LY/T 1454-2018 (LY/T1454-2018)
Description (Translated English): Test code for accuracy of wood based panel machinery
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B97
Classification of International Standard: 79.120
Word Count Estimation: 18,138
Date of Issue: 2018-12-29
Date of Implementation: 2019-05-01
Older Standard (superseded by this standard): LY/T 1454-1999
Regulation (derived from): National Forestry and Grassland Bureau Announcement No.18 of 2018
Issuing agency(ies): State Forestry and Grassland Administration

LY/T 1454-2018: Test code for accuracy of wood based panel machinery

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test code for accuracy of wood based panel machinery ICS 79.120 B97 People's Republic of China Forestry Industry Standard Replacing LY/T 1454-1999 General rules for mechanical precision inspection of wood-based panels Published on.2018-12-29 2019-05-01 implementation National Forestry and Grassland Bureau released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces LY/T 1454-1999 "General Rules for Mechanical Precision Inspection of Wood-based Panels". Compared with LY/T 1454-1999, except for editorial The main technical changes outside the revision are as follows. --- Modified the scope; --- Added normative references; --- Increased the use of inspection methods and measurement tools; --- Increased unit of measurement and measurement range; --- Increased preparation work; ---Modified geometric accuracy test; --- Modified the work accuracy test. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This standard is proposed and managed by the National Standardization Technical Committee for Wood-based Panel Machinery (SAC/TC66). This standard was drafted. Northeast Forestry University. The main drafters of this standard. Dai Dali, Qi Yingjie, Zhang Zhaohao, Xu Yang, Lian Kui. The previous versions issued by this standard are as follows. ---ZBB97027-1988; ---LY/T 1454-1999. General rules for mechanical precision inspection of wood-based panels

1 Scope

This standard specifies the mechanical accuracy test method for wood-based panels. The accuracy test includes geometric accuracy inspection and work accuracy inspection. This standard applies to the precision inspection of wood-based panel machinery (including panel furniture machinery, secondary processing machinery, bamboo processing machinery), and other Wood and bamboo processing machinery can also be used as reference.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 11337 flatness error detection GB/T 17421.1 General rules for machine tool inspection - Part 1. Geometrical accuracy of machine tools under no load or finishing conditions

3 Use of inspection methods and measurement tools

3.1 Inspection method The accuracy of testing the wood-based panel machinery should be measured by the method of actual measurement. The actual measurement is difficult or difficult. The test error can not be exceeded. Law (such as the use of limit gauges, etc.). 3.2 Use of measurement tools Measurement uncertainty due to measurement tools and methods used should be considered during the test. The total error of the inspection tool should be related to the item being tested. Tolerances are compatible and generally only account for less than 20% of the tolerance of the item being inspected. For Class A assessments of uncertainty for repeated test data, repeat at least 5 tests for each given test. The average value of the values is the measurement result. During the inspection, the interference of airflow, light and heat radiation (such as sunlight, too close to the electric light, etc.) should be prevented. When there is a significant change, the gauge should be accompanied by an accuracy checklist.

4 Unit of measurement and measurement range

4.1 Unit of measurement The unit of measurement shall be implemented in accordance with the legal measurement unit of China. Tolerances and measurement ranges should be in the same unit system. Can not directly quote relevant When the standard determines zero, component tolerances, especially dimensional tolerances, it should be detailed. Angle tolerance can be in angle units (degrees, minutes, seconds; arc Degree) or tangent (expressed in millimeters per meter, eg 0.04/1000). 4.2 Measurement range 4.2.1 When the actual measurement range is larger than the specified measurement range, the specified measurement range can be arbitrarily selected within the actual measurement range. ......

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