GB/T 37535-2019 in English

VALID

Requirments of steel utilization evaluate and control for shipbuilding enterprise

Issued on:2019-06-04
Implemented on:2020-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 37535-2019
Document status:	VALID
Title in English:	Requirments of steel utilization evaluate and control for shipbuilding enterprise
Title in Chinese:	船舶生产企业钢材利用评价与控制要求
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2019-06-04
Implemented on:	2020-01-01
ICS Classification:	47.020.01-General standards related to shipbuilding and marine structures
Chinese Classification:	U01-Technical management
Professional Classification:	GB-National Standard
Related Topics:	steel manufacturer Safety production management requirements and evaluation methods of aviation industry enterprises Various types of steel GBT37535 GB/T 37535-2019 Energy consumption evaluation method for shipbuilding enterprises

《GB/T 37535-2019船舶生产企业钢材利用评价与控制要求》由TC12（全国海洋船标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

1. Background of standard formulation and analysis of technological evolution

GB/T 37535-2019 "Evaluation and Control Requirements for Steel Utilization in Shipbuilding Enterprises" was born under the dual pressure of resource efficiency and cost control faced by the global shipbuilding industry. With the continuous advancement of shipbuilding technology, especially the application of high-strength steel and the popularization of digital design, higher requirements are put forward for steel utilization. This standard aims to help shipbuilding companies achieve optimal resource allocation and cost savings through a scientific evaluation system and control method.

2. Comparison of steel utilization evaluation indicators

Evaluation indicators	Definition	Calculation formula	Application scenario
One-time utilization rate of steel	The percentage of theoretical weight of steel material used in the design of a single ship hull structure to the actual amount used.	$ R_{\mathrm{gyl}}=\frac{W_{\mathrm{tl}}}{W_{\mathrm{dsl}}}\times100 $	Evaluate the efficiency of steel material used in the design stage.
Comprehensive utilization rate of steel materials	The percentage of theoretical weight of complete sections in completed ships in the statistical year to the actual amount of steel materials used.	$ R_{\mathrm{gzl}}=\frac{W_{\mathrm{fxg}}}{W_{\mathrm{nsl}}}\times100 $	Comprehensively evaluate the annual steel utilization efficiency of the enterprise.
No-residue manufacturing rate of sections	The percentage of sections manufactured without surplus to the total number of sections in the whole ship.	$ R_{\mathrm{wy}}=\frac{N_{\mathrm{wy}}}{N_{\mathrm{fz}}}\times100 $	Measure the precision manufacturing capability in the production stage.

3. Implementation suggestions and actual case analysis

Design stage:It is recommended that shipbuilders optimize the segment division in the detailed design stage, reasonably control the number of steel specifications, and select high-strength steel in combination with the characteristics of the ship type. For example, after a shipbuilding company adopted the new nesting technology, the one-time utilization rate of steel increased by 5%, significantly reducing material waste.

Production stage:It is recommended to strengthen the deformation control during the segment construction process and adopt high-precision cutting equipment and advanced welding technology. By implementing zero-residue manufacturing technology, a shipyard's block zero-residue manufacturing rate increased from 60% to 85%, significantly reducing subsequent processing costs.

More samples: JC/T 2453-2018 GB 50021-2001(2009) YD/T 3934-2021

Sample only — not a preview of GB/T 37535-2019