GB/T 38425.2-2019Textile machinery and accessories -- Flat steel healds with closed end loops -- Part 2: Dimensions of healds manufactured of hardened strip steel (English PDF)

Foreword

GB/T 38425 `` Textile Machinery and Accessories Closed Heald Ear Steel Sheet Heald '' is divided into 2 parts.

--- Part 1. dimensions of hot rolled steel strip healds;

--- Part 2. Dimensions of healds of hardened steel strip.

This part is the second part of GB/T 38425.

This section is drafted in accordance with the rules given in GB/T 1.1-2009.

This part uses the redrafting method to modify and adopt ISO 363-2..2006 "Textile machinery and accessories closed heald steel sheet healds Part 2.

Dimensions of hardened steel strip healds.

This section has technical differences compared to ISO 363-2..2006, and the terms involved in these differences have passed through the margins on the outside

The vertical single line (|) at the location is marked. The technical differences are.

--- Increased the deviation of the distance L between the ears to "+/- 0.30" (see Tables 1 and 2);

--- Increased size specifications (see Table 1 and Table 2).

The following editorial changes have also been made in this section.

--- Increased the scale of "X" in Figure 1 to "2.5. 1";

--- Deleted the footnote "a" of the section symbol "AA" in Figure 1, and increased the scale used in the section enlarged view to "3. 1";

--- Amended Tables 1 and 2 entitled "Main Dimensions and Limitation Deviations of Single-row Guide Eyelet Steel Sheet Heald"

Dimensions and their extreme deviations ".

This section is proposed by China Textile Industry Federation.

This section is under the jurisdiction of the National Technical Committee for Standardization of Textile Machinery and Accessories (SAC/TC215).

This section was drafted. Shaanxi Textile Equipment Research Institute, Zhejiang Dingfeng Textile Equipment Co., Ltd., Anhui Huamao Textile Co., Ltd.,

Lutai Textile Co., Ltd., National Textile Machinery Product Quality Supervision and Inspection Center (Shanxi).

1 Scope

This part of GB/T 38425 specifies the main dimensions and limits of steel healds (O-type) with closed heald ears for quenched steel belts for the textile industry

deviation.

This section is applicable to closed heald steel healds for hardened steel belts used in the textile industry.

2 size

The main dimensions are shown in Figure 1 and Tables 1 and 2.

In millimeters

figure 1