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GB/T 37707-2019 English PDF (GBT37707-2019)
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GB/T 37707-2019: Thermal spraying -- Components with thermally sprayed coatings -- Technical supply conditions
GB/T 37707-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 25.220.20
A 29
Thermal spraying - Components with thermally
sprayed coatings - Technical supply conditions
(ISO 12670:2011, MOD)
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: FEBRUARY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Requirements ... 6
5 Quality tests ... 8
Bibliography ... 12
Foreword
This Standard was drafted in accordance with the rules given in GB/T1.1-2009.
This standard uses the redrafting method to modify ISO 12670:2011 “Thermal
spraying - Components with thermally sprayed coatings - Technical supply
conditions”.
Compared with ISO 12670:2011, the main technical differences and their
causes are as follows:
- With regard to the normative references, this Standard has been adjusted
with technical differences to adapt to the technical conditions of China. The
adjustments are concentrated in Clause 2 “Normative references”. The
specific adjustments are as follows:
● Replace ISO 6507-1 with GB/T 4340.1 which modifies the international
standard (see Table 2);
● Replace ISO 14916 with GB/T 8642 which modifies the international
standard (see Table 2);
● Replace EN 473 with GB/T 9445 (see 4.1.2);
● Replace ISO 2063 with GB/T 9793 which is equivalent to the international
standard (see 4.2.3);
● Replace ISO 4288 with GB/T 10610 which is equivalent to the
international standard (see Table 1);
● Replace ISO 14919 with GB/T 12608 which modifies the international
standard (see 4.2.1);
● Replace EN 657 with GB/T 18719 (see 3);
● Replace ISO 14232 with GB/T 19356 which modifies the international
standard (see 4.2.1);
● Replace ISO 14918 with GB/T 19824 which modifies the international
standard (see 4.1.2);
● Replace EN 1395-1 with GB/T 20019 (see 4.1.2);
● Replace ISO 14923 with GB/T 37421 which modifies the international
standard (see 5.3).
This Standard has also made the following editorial changes:
Thermal spraying - Components with thermally
sprayed coatings - Technical supply conditions
1 Scope
This Standard specifies technical supply conditions for parts with thermally
sprayed coatings for the manufacturing or repair of components.
This Standard applies to applications where quality requirements according to
GB/T 19352.2 (comprehensive requirements) or GB/T 19352.3 (standard
requirements) are required.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 4340.1 Thermal spraying - Quality requirements of thermally sprayed
structures - Part 3: Standard quality requirements (GB/T 4340.1-2009, ISO
6507-1:2005, MOD)
GB/T 8642 Thermal sprayed coatings - Determination of adhesion strength
(GB/T 8642-2002, ISO 14916:1999, MOD)
GB/T 9445 Non-destructive testing - Qualification and certification of NDT
personnel (GB/T 9445-2015, ISO 9712:2012, IDT)
GB/T 9793 Thermal spraying - Metallic and other inorganic coatings - Zinc,
aluminium and their alloys (GB/T 9793-2012, ISO 2063:2005, IDT)
GB/T 10610 Geometrical product specifications (GPS) - Surface texture:
Profile method - Rules and procedures for the assessment of surface texture
(GB/T 10610-2009, ISO 4288:1996, IDT)
GB/T 12608 Thermal spraying - Wires, rods and cords for flame and arc
spraying - Classification and technical supply condition (GB/T 12608-2003,
ISO 14919:2000, MOD)
GB/T 18719 Thermal spraying - Terminology, classification (GB/T 18719-
b) thermal sprayer shall comply with the requirements of GB/T 19824 or be
qualified by appropriate skill and knowledge;
c) non-destructive testing personnel shall comply with the requirements of
GB/T 9445;
d) spraying equipment shall comply with the inspection requirements of the
relevant part of GB/T 20019; or be qualified by the unobjectionable and
unchanged function of the spraying equipment documented by test
reports/coating results.
4.1.3 Preparing the instructions for thermal spraying (spray procedure
specification)
The manufacturer is responsible for preparing the spray procedure specification
in written form.
The spray procedure specification shall refer to the coating specification and
the manufacturing instructions, such as the list of parts, instructions of substrate
and spraying material, drawings and tests. If required, the spray procedure
specification can be qualified by a component-related spray procedure
qualification according to EN 15648.
4.2 Technical requirements
4.2.1 Spraying materials
Only spraying materials which are required in the coating specification and
indicated in the spray procedure specification shall be applied.
The spraying material shall comply with the technical supply conditions
indicated in GB/T 19356 (spraying powders) and GB/T 12608 (spraying wires,
rods and cords).
The conformity of the delivered with the required spraying material shall be
safeguarded, for example by comparing the composition indicated on the test
certificate with the required one. All spraying materials shall be stored in
suitable packages.
The processing instructions of the manufacturer/supplier of the spraying
material shall be considered.
4.2.2 Spray procedure specification
The spray procedure specification shall contain all parameters, including, for
the relative motion between the gun and the part or the identification number of
the motion programme, those which are necessary for the spraying process of
X: Usually, the test is applied as a shop test only. Tests can be required, if reference samples
are agreed between the contracting parties.
—: The test is senseless or not practicable.
a The determination shall be carried out according to GB/T 8642. In the test report, in addition
to results, it shall document the adhesive used and the bonding procedure.
b The preparation method for the test specimen shall be agreed upon between contracting
parties. This method can also be used to measure the coating thickness.
c If the test on the part is not acceptable, the hardness test shall be carried out according to
GB/T 4340.1.
d The number and design of the test specimen, test procedure and admissible crack structures
in the coating shall be agreed upon between the contracting parties.
e It shall carry out the test according to GB/T 4156. The test procedure and admissible crack
structures in the coating shall be agreed upon between the contracting parties.
Where a single part is to be coated, the percentage of the surface for random
testing shall be calculated according to the size of the coated area. The
influence of the process stability (process carried out manually, completely
mechanized, or controlled in closed-loop form) shall be considered when
random tests are specified.
5.3 Test on the part
Wherever possible, required tests shall be carried out on the part. The surface
characteristics shall be assessed by visual inspection carried out by a skilled
and qualified person according to GB/T 37421.
A 100 %-visual inspection shall be carried out on the coating, even if this is not
specified in ...
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Historical versions: GB/T 37707-2019
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GB/T 37707-2019: Thermal spraying -- Components with thermally sprayed coatings -- Technical supply conditions
GB/T 37707-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 25.220.20
A 29
Thermal spraying - Components with thermally
sprayed coatings - Technical supply conditions
(ISO 12670:2011, MOD)
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: FEBRUARY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Requirements ... 6
5 Quality tests ... 8
Bibliography ... 12
Foreword
This Standard was drafted in accordance with the rules given in GB/T1.1-2009.
This standard uses the redrafting method to modify ISO 12670:2011 “Thermal
spraying - Components with thermally sprayed coatings - Technical supply
conditions”.
Compared with ISO 12670:2011, the main technical differences and their
causes are as follows:
- With regard to the normative references, this Standard has been adjusted
with technical differences to adapt to the technical conditions of China. The
adjustments are concentrated in Clause 2 “Normative references”. The
specific adjustments are as follows:
● Replace ISO 6507-1 with GB/T 4340.1 which modifies the international
standard (see Table 2);
● Replace ISO 14916 with GB/T 8642 which modifies the international
standard (see Table 2);
● Replace EN 473 with GB/T 9445 (see 4.1.2);
● Replace ISO 2063 with GB/T 9793 which is equivalent to the international
standard (see 4.2.3);
● Replace ISO 4288 with GB/T 10610 which is equivalent to the
international standard (see Table 1);
● Replace ISO 14919 with GB/T 12608 which modifies the international
standard (see 4.2.1);
● Replace EN 657 with GB/T 18719 (see 3);
● Replace ISO 14232 with GB/T 19356 which modifies the international
standard (see 4.2.1);
● Replace ISO 14918 with GB/T 19824 which modifies the international
standard (see 4.1.2);
● Replace EN 1395-1 with GB/T 20019 (see 4.1.2);
● Replace ISO 14923 with GB/T 37421 which modifies the international
standard (see 5.3).
This Standard has also made the following editorial changes:
Thermal spraying - Components with thermally
sprayed coatings - Technical supply conditions
1 Scope
This Standard specifies technical supply conditions for parts with thermally
sprayed coatings for the manufacturing or repair of components.
This Standard applies to applications where quality requirements according to
GB/T 19352.2 (comprehensive requirements) or GB/T 19352.3 (standard
requirements) are required.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 4340.1 Thermal spraying - Quality requirements of thermally sprayed
structures - Part 3: Standard quality requirements (GB/T 4340.1-2009, ISO
6507-1:2005, MOD)
GB/T 8642 Thermal sprayed coatings - Determination of adhesion strength
(GB/T 8642-2002, ISO 14916:1999, MOD)
GB/T 9445 Non-destructive testing - Qualification and certification of NDT
personnel (GB/T 9445-2015, ISO 9712:2012, IDT)
GB/T 9793 Thermal spraying - Metallic and other inorganic coatings - Zinc,
aluminium and their alloys (GB/T 9793-2012, ISO 2063:2005, IDT)
GB/T 10610 Geometrical product specifications (GPS) - Surface texture:
Profile method - Rules and procedures for the assessment of surface texture
(GB/T 10610-2009, ISO 4288:1996, IDT)
GB/T 12608 Thermal spraying - Wires, rods and cords for flame and arc
spraying - Classification and technical supply condition (GB/T 12608-2003,
ISO 14919:2000, MOD)
GB/T 18719 Thermal spraying - Terminology, classification (GB/T 18719-
b) thermal sprayer shall comply with the requirements of GB/T 19824 or be
qualified by appropriate skill and knowledge;
c) non-destructive testing personnel shall comply with the requirements of
GB/T 9445;
d) spraying equipment shall comply with the inspection requirements of the
relevant part of GB/T 20019; or be qualified by the unobjectionable and
unchanged function of the spraying equipment documented by test
reports/coating results.
4.1.3 Preparing the instructions for thermal spraying (spray procedure
specification)
The manufacturer is responsible for preparing the spray procedure specification
in written form.
The spray procedure specification shall refer to the coating specification and
the manufacturing instructions, such as the list of parts, instructions of substrate
and spraying material, drawings and tests. If required, the spray procedure
specification can be qualified by a component-related spray procedure
qualification according to EN 15648.
4.2 Technical requirements
4.2.1 Spraying materials
Only spraying materials which are required in the coating specification and
indicated in the spray procedure specification shall be applied.
The spraying material shall comply with the technical supply conditions
indicated in GB/T 19356 (spraying powders) and GB/T 12608 (spraying wires,
rods and cords).
The conformity of the delivered with the required spraying material shall be
safeguarded, for example by comparing the composition indicated on the test
certificate with the required one. All spraying materials shall be stored in
suitable packages.
The processing instructions of the manufacturer/supplier of the spraying
material shall be considered.
4.2.2 Spray procedure specification
The spray procedure specification shall contain all parameters, including, for
the relative motion between the gun and the part or the identification number of
the motion programme, those which are necessary for the spraying process of
X: Usually, the test is applied as a shop test only. Tests can be required, if reference samples
are agreed between the contracting parties.
—: The test is senseless or not practicable.
a The determination shall be carried out according to GB/T 8642. In the test report, in addition
to results, it shall document the adhesive used and the bonding procedure.
b The preparation method for the test specimen shall be agreed upon between contracting
parties. This method can also be used to measure the coating thickness.
c If the test on the part is not acceptable, the hardness test shall be carried out according to
GB/T 4340.1.
d The number and design of the test specimen, test procedure and admissible crack structures
in the coating shall be agreed upon between the contracting parties.
e It shall carry out the test according to GB/T 4156. The test procedure and admissible crack
structures in the coating shall be agreed upon between the contracting parties.
Where a single part is to be coated, the percentage of the surface for random
testing shall be calculated according to the size of the coated area. The
influence of the process stability (process carried out manually, completely
mechanized, or controlled in closed-loop form) shall be considered when
random tests are specified.
5.3 Test on the part
Wherever possible, required tests shall be carried out on the part. The surface
characteristics shall be assessed by visual inspection carried out by a skilled
and qualified person according to GB/T 37421.
A 100 %-visual inspection shall be carried out on the coating, even if this is not
specified in ...
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