I. Technical requirements

1, shelf making accuracy in Guangdong meets the following regulations:

Technical Conditions for Welding Steel Structure Shelf of JB/T 5323-91 《 Three-dimensional Warehouse

Q/320104 YFHJ01-2003《 Assembly Shelf"

Q/3201 YFHJ01-2007 ANSI MH16.1-2004 《 Industrial steel structure storage shelf"

2, shelf overall installation requirements:

Technical Conditions for Welding Steel Structure Shelf of JB/T 5323-91 《 Three-dimensional Warehouse

Q/320104 YFH01-2003《 Assembly Shelf"

FEM 10.2.02 《 Code for Design of fixed tray shelf

FEM 10.2.06 《 Code for Design of Handhandling Fixed shelf shelving

3, surface treatment requirements:

1), pickling, phosphorization, epoxy powder electrostatic spraying, coating thickness of 60-80 μm;

2), electrostatic powder adhesion meets the Class O requirements in GB92865-88 standard.

4, design basis

The design and manufacture of 1), shelf steel structure shall cooperate closely according to the user requirements and the requirements provided by the equipment supplier.

(1) Steel Shelf Structure Design (CECS 23:90)

(2) Code for Design of Steel Structure (GB50017-2003)

(3) Code for Design of Rail Lane High-Level Shelf Warehouse (JB/T9018—99)

(4) Code for Building Structure (GB50009—2001)

(5) Code for Seismic Design of Buildings (GB50011—2001)

(6) Code for Seismic Design of Structures (GB50191-93)

(7) Technical Conditions for Welding Steel Structure Shelf in Three-dimensional Warehouse (JB/5323—9)

(8) Code for Fire Protection Design of Buildings, Revision GBJ16—87(2001

(9) Technical Specification for Cold-Bended Thin-Wall Steel Structure (GB 500188—2002) (10), Calculation Principles for Tolerance, Deformation and Clearance of Lane Stacking Cranes (FEM9.831)

(11) Steel Shelf (JIS S1040-1994)

(12) General Technical Conditions for Welding (Q/ZB74)

(13) Carbon Structural Steel (GB700)

(14) General Technical Conditions for Machinery Processing (GJ12-1973)

(15) Unmarked tolerance of tolerances and tacit linear dimensions (GB1804)

(16) Provisions on Shape and Position Tolerances (GB1184)

(17) GB/T13306-91)

(18) Design Requirements for Military Tunnel Type High-rise Shelf Warehouse (GJB-5030-2003)

2), adopts mature and advanced shelf technology, with reasonable design, novel structure, safe and reliable use.

3), pursues reasonable cost performance on the basis of ensuring reliable use.

The main components of 4), shelf steel structure adopt high quality cold rolled plate and electrostatic spray plastic treatment.

5), shelf design is designed according to the Code for Seismic Design of Buildings.

The 6), shelf layout considers the overall system layout, leaving space for fire protection and ventilation systems.

7), shelves are designed, manufactured and commissioned in accordance with the Japanese JIS Standard European Standard (FEM9.831).

II. Specification and indexes of component materials

1, Column:

1), column twist is less than 1 ° / m;

Vertical deviation of 2), column is less than L/1000mm;

2, crossbeam:

Deflection not greater than L/200. when shelf beam reaches required maximum load

3, Shelf Standard Parts

1), column connection bolt M10*65(95) with outer tooth locking washers

Expansion bolt in 2), column foot (M10*75(100)

3,) Safety pin, ￠ 7mm

III. Strength index of component materials

All components of shelves are made of quality steel cold rolled profiles, whose strength indexes are as follows:

Strength index of shelf cold-rolled profile (N/mm2)

IV. Manufacturing process flow:

Raw Material (coil) → Cold rolled molding → fixed gauge, flat head → punch (welding) → Correction → Surface Spray Plastic → Packaging → finished product

V. Surface treatment:

1, process flow: black blank → remove surface dirt → chemical rust removal → Phosphate → injection plastic → flow flat curing → finished product

2, shelf surface treatment adopts epoxy tree finger powder electrostatic spraying process, with a coating thickness of 60~80 microns;

3, electrostatic spraying adhesion meets level 0 in GB92865-88 standard;

4, hardness (wear resistance) is more than 100 times that of normal nitrate paint, meeting the 2 H requirements in GB6739-86 standard;

5, Corrosion resistance (hydrochloric acid test) GB1771-91 is greater than 500 hours.

VI. Technical requirements for shelf installation

1, shelf overall installation requirements:

1), shelf slab perpendicular deviation along roadway length and width direction ≤ 10mm;

2), same floor beam height deviation ± 5mm;

3), bottom center distance of adjacent shelf plate column, limit deviation ± 1mm;

Total-length accumulation deviation of 4), shelf along the roadway direction ± 10mm.

The accuracy of each member of the 2, pillar plate shall comply with the following provisions:

1), shelf sheet full high limit deviation ± 2mm.

2), Shelf sheet width limit deviation ± 2mm.

Accumulated error of total length adjusting hole distance of 3), column is not more than ± 2mm, phase critical hole distance error is less than 0.02mm;

Limit deviation of 4), shelf slab ± 0.5mm.

Limit deviation of 5), shelf side and column not more than 6mm.

Perpendiculality of 6), shelf plate column and bottom plate, not more than 0.5 mm. within 500mm height range

The accuracy of 3, cross beam after welding shall meet the following regulations:

1), length of beam ± 0.5mm.

Limit deviation of hanging ends of both ends of 2), beam ± 0.5mm.

4, Guangdong shelf welding requirements:

The 1), slopes shall comply with GB985 and GB986.

The welding wave of 2), weld metal surface shall be uniform, free of cracks, slag, clamp, welding tumor, burning through, arc pit and needle air hole, and no spattering in the welding area.

No air holes are allowed on the 3), weld surface. Bite depth shall not exceed 0.5mm, The accumulative total length shall not exceed 10% of the weld length. The overall dimension limit deviation of butt and fillet welds shall comply with the relevant provisions in GBJ205.