What is a Fire Axe?

The fire axe is a tool to clean up fire or flammable materials and cut off the spread of fire. It can also cut open doors and windows that are burnt and deformed to rescue trapped people. Its main shape is similar to an axe, so it is called a fire axe.

Fire axe

Fire axe is a type of fire or

The fire axe works by cleaning up a fire or

1 Scope

This standard specifies the product classification, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of fire axe.

This standard applies only to fire flat axe and fire sharp axe.

2 Reference standards

The following standards contain provisions that, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards.

GB 19190 Graphical symbol for packaging, storage and transportation

GB / T 23091 Metal Rockwell Hardness Test Method

GN 1182 Modeling method of fire protection products

3

3.1 Type Product Classification

3.1.1 The shape of the fire flat axe is shown in Figure 1.

3.1.2 The shape of the fire sharp axe is shown in Figure 2.

3.2 Model

3.2.1 The method of formulating the fire axe shall comply with the provisions of GN 11-82.

3.2.2 The composition of the fire axe product model is as follows:

Example of marking: a) GFP 810 means a fire flat axe with a total length of 810mm;

b) GFJ 715 represents a fire axe with a total length of 715mm.

4 Technical requirements

4.1 Materials

4.1.1 The fire axe axe shall be made of steel that meets the technical requirements of this standard.

4.1.2 The fire axe handle should be made of hard wood, and the moisture content should not be greater than 16%.

4.2 Surface quality

4.2.1 The surface roughness of the bright part of the surface of the fire axe should not be greater than.

4.2.2 The fire axe axe shall not have cracks, interlayers or rust spots. The painted surface shall be smooth and uniform in color and luster, without leakage of paint, blistering, peeling and wrinkling.

4.2.3 The wooden surface of the fire axe handle should be smooth, free from decay, knots and insect holes, and painted with varnish.

4.3 Size and quality

4.3.1 The size and quality of the fire flat axe shall comply with the requirements in Table 1.

4.3.2 The size and quality of the fire axe shall comply with the requirements in Table 2.

4.3.3 The limit deviations of dimensions without tolerances in Tables 1 and 2 are manufactured according to the roughest grade in GB / T 1804-92.

4.4 Symmetry

4.4.1 As shown in Figure 3, the deviation between the small face of the fire axe axe and the center of the axe hole should be less than 2mm.

Note: AA is the centerline of the small face of the fire axe and BB is the centerline of the fire axe hole.

4.4.2 The deviation (ie symmetry) of the axe of the fire axe from the centerline of the axe end shall be less than 8mm.

4.5 Hardness

The hardness of the fire axe blade is HRC 48-56, and the hardness of the axe hole wall should not be greater than HRC 35.

4.6 Impact resistance

The axe of the fire axe shall be able to withstand heavy hammers as specified in Table 3. After the axe, the axe shall not have cracks and the deformation shall not be greater than 2mm.

4.7 Pull-off resistance

The pulling force of the fire axe axe and axe handle should be greater than 15 000N (the axe handle should not break during the test, and there should be no loosening at the joint after the test).

4.8 Flat blade cutting performance

The fire axe axe flat blade should be able to cut Q 235A round steel with a diameter of 10mm, and the edge of the blade should be free of obvious missing edges, curling and cracks.

4.9 Sharp chisel performance

The sharp edge of the fire axe shall be able to cut the C20 concrete test block, and the edge shall be free from obvious curls and cracks.

5 Test method

5.1 Inspection of moisture content of axe handle

Check the moisture content of the fire axe with a hygrometer.

5.2 Surface quality inspection

5.2.1 The surface roughness of the fire axe axe should be compared with the surface roughness sample, or checked with the surface roughness inspection recorder.

5.2.2 The surface of fire axe axe and axe handle shall be visually inspected.

5.3 Dimension and quality inspection

5.3.1 The dimensions of fire axe axe and axe handle are checked with a universal measuring tool

5.3.2 The quality of fire axe axe shall be checked with a weighing instrument with an accuracy of not less than 0.05kg

5.4 Symmetry check

Fire axe symmetry is checked with a universal measuring instrument.

5.5 Hardness test

5.5.1 The fire axe axe blade and axe hole wall hardness shall be clamped with special fixtures and shall be carried out in accordance with GB / T 230.

5.5.2 The hardness test of fire axe shall be arbitrarily measured at three points within 10mm from the edge of the axe. If one point fails, then two points shall be measured in the test area near the point, and the other two points shall pass.

5.6 Impact test

The fire axe axe impact test should be performed on a special test machine. The test is shown in Figure 4. The axe is held by a special fixture. The support point on the fixture is the end of the axe hole and the lower support point is the axe hole end Axe blade point. The width of the clamp should be greater than the width of the axe body part being clamped. The center of the hammer should be hammered within 15-25mm from the edge of the axe. The hammer should be dropped freely at a height of 1m for a second impact. The test results should meet the requirements of 4.6.

5.7 Pull-off test

The pull-off test of the fire axe shall be performed on a material testing machine, and the test results shall meet the requirements of 4.7.

5.8 Flat blade cutting test

Take a Q235A round steel with a diameter of 10mm, place it horizontally on a flat plate of low carbon steel, hold the axe handle, and use a flat blade to aim at the round steel with no more than three times to break.

5.9 Sharp-edge chisel test

Take a standard C20 concrete test block, hold the axe in hand, and aim the test block with a sharp edge to chisel no more than three times until it ruptures.

6 Inspection rules

6.1 Factory inspection

6.1.1 The fire axe must be inspected by the factory quality inspection department, and it can only leave the factory after passing the inspection, with a certificate of compliance.

6.1.2 Factory inspection shall be carried out according to the following items:

a) Dimension and quality inspection

b) Surface quality inspection

c) Symmetry

d) Hardness test

e) Axle handle moisture content test

f) Pull-off test

6.1.3 When sampling, three batches are randomly taken from each batch. 100 batches of products of the same variety and same model specifications are taken as one batch (less than 100 batches are also considered as one batch).

6.1.4 If one of the inspection results does not meet the requirements of this standard, re-sampling of the unqualified item shall be repeated. If the results of the re-inspection still do not meet the requirements of this standard, the entire batch of products is unqualified.

6.2 Type inspection

6.2.1 Type inspection is carried out in one of the following situations:

a) When new products are trial-produced and finalized;

b) If there are major changes in the material, design, process or structure of the final product, which may affect the product quality;

c) two years of normal production;

d) When the quality supervision agency asks for type inspection.

6.2.2 The contents of type inspection shall include all the contents specified in Chapter 4 of this standard.

6.2.3 For type inspection, use 300 products of the same type, same model and specification as one batch (less than 300 products are also regarded as one batch), and randomly select 5 products as samples.

6.2.4 If one of the inspection results does not meet the requirements of this standard, double sampling of the unqualified items shall be re-inspected. If the results of the re-inspection still do not meet the requirements of this standard, the products of this type inspection are Failed.

7 Marking, packaging and storage

7.1 Sign

7.1.1 Product mark

The product should be marked with:

a) product trademarks;

b) product name;

c) product model and specifications;

d) the name of the production plant;

e) Production date.

7.1.2 Packaging mark

The box should be marked with:

a) the name and address of the production plant;

b) product trademark, name, model, specification, batch number, standard number;

c) number of pieces, weight (net weight or gross weight), appearance size;

d) production date;

e) It should be marked with "prevent rain" and its marking method should comply with the relevant provisions of GB 191-73.

7.2 Packaging

7.2.1 Packaging materials

Each fire axe should be packed in paper or plastic bags. It must be packed in wooden boxes or cardboard boxes and fixed in the boxes when leaving the factory.

7.2.2 The product box shall be accompanied by a product certificate of conformity.

7.3 Transportation and storage

7.3.1 The fire axe should avoid heavy pressure and collision during transportation.

7.3.2 The fire axe shall be stored in a dry, ventilated and non-corrosive chemical place.