ASTM International - ASTM C1147-01(2012)

Standard Practice for Determining the Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics

historical
Buy Now
Organization: ASTM International
Publication Date: 1 August 2012
Status: historical
Page Count: 4
ICS Code (Thermoplastic materials): 83.080.20
significance And Use:

5.1 The mechanical performance of welded thermoplastic structures is largely dependent on the quality of the welding operation. Fabricators should determine that the proper welding procedures are... View More

scope:

1.1 This practice covers the preparation and evaluation of joints between two pieces of weldable grades of thermoplastic materials, backed and unbacked, (such as those shown in Table 1) up to 2 in. (50 mm) in thickness.

TABLE 1 Typical Guide for Hot Gas Welding TemperaturesNote 1-For other welding techniques, consult material and equipment supplier for recommendations.

    °F

A

Recommended Gas Type

B

  HDPE 500-600   Nitrogen or Air
  PP 550-600   Nitrogen or Air
  PVC 500-550   Air
  CPVC 550-660   Air
  PVDF 650-680   Nitrogen or Air
  ECTFE 665-695   Nitrogen
  ETFE 675-710   Air
  FEP 650-725   Air
  PFA 675-750   Air
  MFA 536-554   Air

A Measured 1/4 in. inside weld tip, directly in gas stream.B Inert gas may be used in place of air.

1.2 Since there are numerous new technologies and techniques constantly being developed for plastic welding, there are no profiles and procedures that can be considered as standard for all plastics at various thicknesses. This practice is not intended to define profiles and procedures; however, it is intended to establish methods to evaluate minimum short term weld factors to be achieved by the welder for the respective plastics.

1.3 Weld procedures used for test pieces should reflect procedures to be used in actual fabrication.

1.4 Welding methods to be used could include machine welding, extrusion welding, and hot gas welding.

1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Document History

May 1, 2014
Standard Practice for Determining the Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics
1.1 This practice covers the preparation and evaluation of joints between two pieces of weldable grades of thermoplastic materials, backed and unbacked, (such as those shown in Table 1) up to 2 in....
ASTM C1147-01(2012)
August 1, 2012
Standard Practice for Determining the Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics
1.1 This practice covers the preparation and evaluation of joints between two pieces of weldable grades of thermoplastic materials, backed and unbacked, (such as those shown in Table 1) up to 2 in....
September 15, 2006
Standard Practice for Determining the Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics
1.1 This practice covers the preparation and evaluation of joints between two pieces of weldable grades of thermoplastic materials, backed and unbacked, (such as those shown in ) up to 2 in. (50 mm)...
May 10, 2001
Standard Practice for Determining the Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics
1.1 This practice covers the preparation and evaluation of joints between two pieces of weldable grades of thermoplastic materials, backed and unbacked, (such as those shown in Table 1) up to 2 in....
May 10, 2001
Standard Practice for Determining the Short Term Tensile Weld Strength of Chemical-Resistant Thermoplastics
1.1 This practice covers the preparation and evaluation of joints between two pieces of weldable grades of thermoplastic materials, backed and unbacked, (such as those shown in Table 1) up to 2 in....
Advertisement