Load test results of hinge

Test product No. Load of the first load-deformation (Kgf)
A-1 7.4
A-3 9.3
A-7 13.4
A-9 13.7
A-30 53.4
A-44-2 53.1
A-46 6.1
A-47-2 15.3
A-70 154.0
A-71 127.5
A-72 270.0
A-77 112.0
A-79-1 33.0
A-80-1 18.7
A-80-2 121.0
A-80-3 49.2
A-80-7 24.3
A-80-10 41.6
SF-3-1 130.8
SF-3-2 61.2
SF-3-3 35.1
SF-3-4 39.6
Test product No. Load of the first load-deformation (Kgf)
A-80-12 12.0
A-80-13 17.7
A-80-16 17.1
A-80-17 19.5
A-80-18 11.2
A-80-19 30.8
A-80-20 40.0
A-90-1 69.7
A-90-2 82.2
A-90-6 6.3
A-90-7 3.4
A-91-1 258.3
A-91-2 188.8
A-91-3 128.0
A-91-4 110.9
A-95 3.1
AP-2-1 5.3
AP-2-2 8.4
SF-3-5 139.3
SAP-1(L) 26.5
F-2 55.4
   

Normal tolerance of press processing product

■ General dimensional tolerances of punching
(unit:mm)

■ General dimensional tolerances for bending and drawing
(unit:mm)
　 　
Categories for basic size Grade
A class B class C class
Below 6 ±0.05 ±0.1 ±0.3
More than 6, less than 30 ±0.1 ±0.2 ±0.5
More than 30, less than 120 ±0.15 ±0.3 ±0.8
More than 120, less than 400 ±0.2 ±0.5 ±1.2
More than 400, less than 1000 ±0.3 ±0.8 ±2
More than 1000, less than 2000 ±0.5 ±1.2 ±3
  　 　
Categories for basic size Grade
A class B class C class
Below 6 ±0.1 ±0.3 ±0.5
More than 6, less than 30 ±0.2 ±0.5 ±1
More than 30, less than 120 ±0.3 ±0.8 ±1.5
More than 120, less than 400 ±0.5 ±1.2 ±2.5
More than 400, less than 1000 ±0.8 ±2 ±4
More than 1000, less than 2000 ±1.2 ±3 ±6

Remarks:

A class, B class and C class are equivalent to f, m, and C of JIS standard(JIS B 0405) for tolerance.

Remarks:

A class, B class and C class are equivalent to f, m, and V of JIS standard(JIS B 0405) for tolerance.

Magnetic properties of stainless steel

There are three types of stainless steel in modifications and metal structures.

Classification Typical steel grades Chemical composition Magnetic properties
Martensitic SUS403SUS41013CrBelow C0.15 Yes
FerriteSUS43018CrBelow CO.12 Yes
Austenitic SUS304SUS304J318Cr.8NiBelow C0.08 No

Austenitic stainless steel is generally non-magnetic as above,but work hardening and processing-induced martensitic transformation (Two-tier organization that includes martensite by austenite transformation) occurs by cold heading or rolling process, increased permeability can be attracted to magnet.
Magnetism is caused by drawing conditions, processing methods, degree of processing.

IP grade

Waterproof and dustproof standards for electrical machinery is specified in the IP grade of IEC(International Electrotechnical Commission) and JIS(Japanese Industrial Standard ).The first digit of two digit numbers means "dustproof rating" and the second digit is "waterproof rating".
In the code IP45, for example, IP identifies this standard, the "4" describes the level of protection from solid objects,and the "5" describes the level of protection from liquids.
When indicating a waterproof rating only for IP standard, it is denoted by 「IPX5」.
「ｘ」 means no waterproofing test, "5" of the right side is rating 5 in waterproofing test for IPX5.

IP (Ingress Protection) codes

 IPコード

IP code chart
First characteristic numeral (Penetration of solids) Second characteristic numeral (Waterproofing)
number Degree of protection against proximity and ingress of foreign solid objects from external products. number Degree of protection against penetration of water with harmful effects from external products.
0Not protected 0Not protected
1Protected against solid foreign objects of 50mm diameter and greater.Protected against access to hazardous parts with the back of hand. 1Protected against vertically falling water drops.
2Protected against solid foreign objects of 12.5mm diameter and greater.Protected against access to hazardous parts with a finger. 2Water sprayed at an angle up to 60°degrees on either side of the vertical shall have no harmful effects.
3Protected against solid foreign objects of 2.5mm diameter and greater.Protected against access to harzardous parts with a tool. 3Water splashed against the enclosure from any direction shall have no harmful effects.
4Protected against solid foreign objects of 1.0mm diameter and greater.Protected against access to hazardous parts with a wire. 4Water projected in jets against the enclosure from any direction shall have no harmful effects.
5Ingress of dust(75μm diameter) is not totally prevented, but dust shall not penetrate in a quantity to interfere with satisfactory operation of the apparatus or to impair safety. 5Water projected in powerful jets against the enclosure from any direction shall have no harmful effects.
6No ingress of dust (75μm diameter) 6Water projected in jets against the enclosure from any direction shall have no harmful effects.
7Protected against the effects of temporary immersion in water.Products intended for use in water.
8Protected against the effects of continuous immersion in water.Products intended for use in more severe conditions than number 7.

Verificaion(waterproofing test in no load of stopper plate) of waterproof specifications for all Hoshimoto handles,please contact us.
IP standard is the confirmation of waterproof performance in the laboratory test, please check our test under actual equipment and condition.