Major Work Activity C – Completes new construction

Task C-10 Performs fabrication

Task Descriptor

Fabrication is the creation of the components from stock material following specific instructions from a drawing or a concept. The fabrication process includes layout, cutting, forming and assembly of components. Most components are built in a shop and transported to the jobsite; however, fabrication can also occur in the field.

C-10.01 Lays out components for fabrication

Essential Skills

Numeracy, Document Use, Thinking

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Performance Criteria

Evidence of Attainment

C-10.01.01P

select and locate material and components

material and components are selected and located according to drawings and specifications

C-10.01.02P

measure material

material is measured to ensure dimensions are according to drawings and specifications

C-10.01.03P

select and use tools

tools are selected and used according to task at hand

C-10.01.04P

perform mathematical calculations

mathematical calculations are performed to obtain proper orientation, alignment and projections according to specifications

C-10.01.05P

transfer dimensions and measurements

dimensions and measurements are transferred to components and materials according to drawings and specifications

C-10.01.06P

make jigs and templates

jigs and templates are made according to task at hand and specifications

C-10.01.07P

identify and mark final product

various sections of final product are identified and marked for site assembly and installation using various identification methods

C-10.01.08P

prepare and clean material to be cut

material to be cut is prepared and cleaned

Range of Variables

dimensions include: thickness, length, width, diameter, circumference, orientation, evaluation

tools include: measuring tools, straight edges, levels, marking tools, compass, dividers

identification methods include: match-marking, tagging, piece mark numbering, item list, heat number

material includes: metals, fiberglass, composites, stainless steel

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-10.01.01L

demonstrate knowledge of the procedure to lay out material and components for fabrication and the associated tools and equipment

identify, select and use measuring, checking and layout tools

   

identify types of materials to be used and components being fabricated

   

describe the various layout methods

   

avoid material waste through pre-planning

   

describe how to develop a template using parallel lines and radial line development

C-10.01.02L

demonstrate knowledge of calculations required to lay out components

calculate dimensions of squares, rectangles and circles for layout

   

calculate orientation, alignment and projections

C-10.01.03L

demonstrate knowledge of drawing interpretation

layout and fabricate components from drawings

   

read a drawing to determine the materials required and layout template or components

   

read a drawing and identify the components listed for fabrication

   

list and describe the abbreviations applicable to layout and development

Range of Variables

components include: ladders, platforms, davits, headers, pipe turns, offsets, ducts, cylinders, cones, pressure vessel shells, support structures

layout methods include: parallel-line, triangulation, radial-line development, mathematical formulas, geometric construction

C-10.02 Cuts components for fabrication

Essential Skills

Document Use, Numeracy, Thinking

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Performance Criteria

Evidence of Attainment

C-10.02.01P

select cutting method

cutting method is selected according to material type, dimensions, task at hand and specifications

C-10.02.02P

select tools and equipment

tools and equipment are selected according to task at hand

C-10.02.03P

set up cutting tools

cutting tools are set up according to specifications

C-10.02.04P

position and secure material

material to be cut is positioned and secured

C-10.02.05P

perform cut

cut is performed according to drawings and specifications

C-10.02.06P

measure components

components are measured to ensure accuracy

Range of Variables

cutting method includes: oxy-fuel, grinding, gouging, plasma, saw, shear

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-10.02.01L

demonstrate knowledge of procedures used to cut components for fabrication and their associated tools and equipment

identify and describe cutting tools and equipment and list their uses and limitations

   

describe cutting using manual and mechanical processes

   

describe the process of cutting material of various thickness

   

identify and describe oxy-fuel cutting equipment

   

explain the set-up of oxy-fuel cutting equipment

   

define the principle of the oxy-fuel gas cutting process

   

identify the characteristics of oxygen and fuel gas cylinders

   

explain the purpose of a manifold system

   

identify and select fuel gases for manual and automatic oxy-fuel cutting of carbon steel

   

identify and describe regulator types, purposes, and their adjustments and care

   

describe the construction and maintenance of hoses, fittings and flashback arrestors

   

explain and demonstrate the setting of oxy-fuel pressures, balancing and flame adjustments

   

list the causes of backfires and flashbacks

   

describe the design, maintenance, selection and operation of oxy-fuel tips

   

describe the setup and operation of CAC-A (carbon arc cutting-air) equipment (gouger)

   

describe the setup and operation of PAC (plasma arc cutting) equipment

   

describe cutting processes involved in cutting alloy steels and non-ferrous metals

   

perform pipe cutting to size using a pipe cutter or oxy-fuel cutting process

   

explain the correct procedure to check for leaks

   

identify cutting issues

C-10.02.02L

demonstrate knowledge of procedures used to thread components for fabrication and their associated tools and equipment

identify and describe threading tools and equipment and list their uses and limitations

   

describe threading of pipe using manual and mechanical processes

Range of Variables

cutting issues include: incorrect tip type, poor cut quality, incorrect speed, incorrect heat, incorrect tip angle, incorrect pressures, faulty and dull equipment

C-10.03 Forms components for fabrication

Essential Skills

Thinking, Numeracy, Working with Others

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Performance Criteria

Evidence of Attainment

C-10.03.01P

select and use shop equipment

shop equipment is selected and used to form components

C-10.03.02P

select and use hand and power tools

hand and power tools are selected and used to form components

C-10.03.03P

shape components

components are shaped by using forming methods according to specifications

C-10.03.04P

check components

components are checked for dimension and tolerance according to specifications

C-10.03.05P

finish fabricated material

fabricated material is finished by buffing, cleaning and grinding

Range of Variables

shop equipment includes: brakes, rolls, dies

forming methods include: rolling, bending, braking, controlled heating

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-10.03.01L

demonstrate knowledge of procedures to form components and their associated tools and equipment

identify the tools and equipment required to fabricate components

   

describe methods used to identify fabricated components and assemblies

   

identify forming methods

C-10.03.02L

demonstrate knowledge of drawing interpretation

interpret dimensions, symbols and abbreviations on drawings

Range of Variables

forming methods include: rolling, bending, braking, controlled heating

C-10.04 Constructs components

Essential Skills

Working with Others, Thinking, Continuous Learning

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Performance Criteria

Evidence of Attainment

C-10.04.01P

select and use tools and equipment

tools and equipment are selected and used according to task at hand and specifications

C-10.04.02P

align and orient components

components are aligned and oriented to fit according to match-mark, drawings and specifications

C-10.04.03P

secure components

components are secured to ensure correct alignment and to maintain their shape by using various securing methods

C-10.04.04P

join components

components are assembled using joining methods

Range of Variables

tools and equipment include: squares, levels, clamps, wrenches, welding machines

securing methods include: clamping, dogging, bracing, lashing, spiders, stiffeners

joining methods include: welding, bolting, riveting

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-10.04.01L

demonstrate knowledge of the procedures to construct components and their associated tools and equipment

interpret dimensions, symbols and abbreviations on drawings

   

list fastening, securing and joining methods

   

identify required tools and equipment specific to fastening method and specifications

Range of Variables

fastening methods include: welding, bolting (torqueing, tensioning), rigging, riveting

securing methods include: clamping, dogging, bracing, lashing, spiders

joining methods include: welding, bolting, riveting

Task C-11 Assembles and fits vessels and components

Task Descriptor

Boilermakers assemble, align and fit vessels and components in sections or modules according to applicable codes and standards prior to final installation. They align the components and vessels at the desired location. Fitting ensures the proper placement of the vessels and components prior to fastening them in place.

C-11.01 Aligns vessels and components

Essential Skills

Thinking, Document Use, Working with Others

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Performance Criteria

Evidence of Attainment

C-11.01.01P

select alignment tools and equipment

alignment tools and equipment are selected according to industry practices

C-11.01.02P

identify reference point

reference point is identified according to drawings and specifications

C-11.01.03P

set vessels and components

vessels and components are set at desired location according to engineer-approved drawings and specifications

C-11.01.04P

check elevation, orientation and projection of vessels and components

elevation, orientation and projection of vessels and components are checked to confirm placement

Range of Variables

alignment tools and equipment include: transits, water levels, plumb bobs, dogs/wedges, lugs, shims, key plates, strongbacks, key channels, u-bars, bull pins and key nuts

reference point includes: benchmarks or elevation marks, datum line, work points

vessels include: drums, exchangers, towers, tanks

components include: manway, cleanout doors, water or fluid draw-off elbow, draw-off sump, inlet outlet, overflow venting, walkway, stairway, ladders, nozzles, support structures

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-11.01.01L

demonstrate knowledge of the procedures to align vessels and components and their associated tools and equipment

identify alignment tools and equipment and their functions and limitations

   

describe the layout and fit-up of bottom, shell, roof and openings

   

describe the preparation, fit-up and alignment of horizontal and vertical seams

   

describe orientation, elevation and projection methods and procedures

C-11.01.02L

demonstrate knowledge of drawing interpretation

interpret information from approved drawings and specifications

   

identify reference points according to approved drawings and specifications

Range of Variables

vessels include: drums, exchangers, towers, tanks

components include: manway, cleanout doors, water or fluid draw-off elbow, draw-off sump, inlet outlet, overflow venting, walkway, stairway, ladders, nozzles, support structures

alignment tools and equipment include: transits, water levels, plumb bobs, dogs, lugs, shims, key plates, strongbacks, key channels, wedges, u-bars

C-11.02 Fits vessels and components

Essential Skills

Document Use, Numeracy, Working with Others

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Performance Criteria

Evidence of Attainment

C-11.02.01P

inventory and assemble components

components are inventoried and assembled according to approved drawings and specifications

C-11.02.02P

check components

components are checked for fit and function by measuring and pre-assembly

C-11.02.03P

select and use tools and equipment

tools and equipment are selected and used according to task at hand

C-11.02.04P

measure, match-mark and cross reference elevation, orientation and projection of components

elevation, orientation and projection of components are measured, match-marked and cross-referenced according to engineer-approved drawings and specifications

C-11.02.05P

attach components

components are attached using attachment methods

Range of Variables

tools and equipment include: levels, dogs, wedges, hammers, rigging, key plates, pry bars, strongbacks

attachment methods include: bolting, clipping, tacking, welding, expansion of tubes, riveting, chemical bonding

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-11.02.01L

demonstrate knowledge of the procedures to fit vessels and components and their associated tools and equipment

identify and describe assembly requirements and procedures

   

describe fitting methods and procedures

   

list tools and equipment used to fit vessels and components and their functions and limitations

Range of Variables

tools and equipment include: levels, dogs, wedges, hammers, rigging, key plates, pry bars, strongbacks

Task C-12 Fastens components

Task Descriptor

Boilermakers use several techniques to fasten components during construction. This is a required task in order to complete the final installation. A small component of this task may include working with fiberglass.

C-12.01 Bolts components

Essential Skills

Document Use, Working with Others, Numeracy

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Performance Criteria

Evidence of Attainment

C-12.01.01P

select bolts

bolt types, grades and sizes for application are selected according to approved drawings and specifications

C-12.01.02P

prepare components

components are prepared prior to fastening using preparation methods

C-12.01.03P

select approved gasket

approved gasket is selected according to specifications

C-12.01.04P

select approved lubrication

approved lubrication is selected according to specifications

C-12.01.05P

install hardware

hardware is installed according to job specifications

C-12.01.06P

select and use tools and equipment

tools and equipment are selected and used according to job requirements

C-12.01.07P

ensure final fit

final fit is ensured before tightening bolts on vessels and components

C-12.01.08P

torque or tension bolts

bolts are torqued or tensioned according to specifications

Range of Variables

preparation methods include: approved lubrication, cleaning, buffing

hardware includes: gaskets, bolts, nuts, washers, studs, rivets

tools and equipment include: torque wrenches, impact wrenches, pneumatic torque guns, hydraulic torque wrenches, tensioning and torqueing equipment, hammer wrenches

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-12.01.01L

demonstrate knowledge of the techniques used to bolt components and their associated tools and equipment

identify types, grades and sizes of bolts

   

identify types of gaskets and flanges

   

identify types of lubricants

   

identify types of torqueing and tensioning equipment

   

describe bolting and torqueing sequence

Range of Variables

tools and equipment include: torque wrenches, impact wrenches, pneumatic torque guns, hydraulic torque wrenches, tensioning and torqueing equipment, hammer wrenches

grades are specified by: CSA, ASTM, American Iron and Steel Institute (AISI), American National Standards Institute (ANSI), ASME

torqueing and tensioning equipment includes: pneumatic torque wrench, hydraulic torque wrench, electric torque wrench, hydraulic tensioning system, pumps

C-12.02 Expands tubes

Essential Skills

Document Use, Numeracy, Working with Others

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Performance Criteria

Evidence of Attainment

C-12.02.01P

select and use expansion tools and equipment

expansion tools and equipment are selected and used according to manufacturers’ specifications

C-12.02.02P

disassemble, clean, lubricate and reassemble rolling components

rolling components are disassembled, cleaned, lubricated and reassembled to prevent damage to equipment

C-12.02.03P

prepare surface

surface is prepared by using tube reamer, grooving tool and tube brushes to buff and clean

C-12.02.04P

roll tubes

tubes are rolled according to job specifications

C-12.02.05P

measure initial and final expansion

final expansion is verified with initial calculations to confirm job specifications by using measuring instruments

Range of Variables

expansion tools and equipment include: rolling guns, mandrels, rolls

measuring instruments include: outside micrometers, inside micrometers, gauges, telescopic gauges

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-12.02.01L

demonstrate knowledge of the techniques used to expand tubes and their associated tools and equipment

define expansion theory and describe techniques to expand tubes

   

define terms associated with tube hole arrangement

   

describe the process of tube rolling

   

identify types of baffles and describe their function and installation procedures

   

identify tube sheet layouts and state their preference of application

   

describe different types of exchanger heads

   

list and describe factors to consider in tube expanding procedures for condensers and exchangers

   

list the basic steps associated with tube installation

   

state the recommended tube expansion sequences with reference to tube sheet layout, its area and shape

   

describe how to measure the inside diameter of a tube

   

determine the recommended percentage wall reduction for ferrous and non-ferrous materials

   

list recommended lubricants

   

identify the optimum length of expanded seat

   

describe the reason for grooved seats

   

list and describe the uses and limitations of tube equipment

   

identify the factors affecting the quality of an expanded joint

   

describe the operational relationship of the mandrel and rolls

   

describe the purpose of bell rolls

   

describe the purpose and process of tube beading

   

identify and define the propulsive type of expander

   

explain the principle involving explosive tube expansions

   

describe tube flaring using flaring tools

C-12.02.02L

demonstrate knowledge of calculations required when expanding a tube

calculate the expanded diameter (final ID) of a tube

Range of Variables

terms include: circumferential pitch, ligament space, removal space, longitudinal pitch, diagonal pitch

exchanger heads include: channel and removable cover, bonnet, channel integral with tube sheet, pull through and floating head, outside packed floating head

factors to consider in tube expanding include: tube sheet layout, number of tubes, type of metals, length of tubes, diameter of tube (OD), material wall thickness (MWT) tube sheet or header thickness, expansion required, lubrication

tube equipment includes: tube guide, compressor, air motor, electric motor tube end mills, tube expanders, fly cutters, tube cutters, tube cleaners, tube removal tools, micrometers, gauges, torque wrench

factors affecting the quality of an expanded joint include: surface of hole, roundness of hole, cleanliness of hole, expansion past the inner edge of tube sheet, overheating, roller speed, mechanical properties of tube and tube sheet, lubrication or lack of it, overexpansion

C-12.03 Lays up fiberglass

Essential Skills

Document Use, Thinking, Continuous Learning

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Performance Criteria

Evidence of Attainment

C-12.03.01P

select and use tools and equipment, and PPE

tools, equipment and PPE are selected and used according to jurisdictional regulations and SDS

C-12.03.02P

prepare surface

surface is prepared by grinding, sanding and cleaning

C-12.03.03P

mix fiberglass resins

fiberglass resins are mixed according to manufacturers’ and job specifications, and environmental considerations

C-12.03.04P

apply lay-up techniques

lay-up techniques are applied according to manufacturers’ specifications

C-12.03.05P

identify and repair malformations

malformations are identified and repaired

C-12.03.06P

store and dispose of fiberglass materials

fiberglass materials are stored and disposed of according to SDS

Range of Variables

tools and equipment include: power cutter (circular saw), power disc sander, extension cords, rags, heat lamps, rollers and brushes

PPE include: disposable coveralls, safety goggles, full-faced respirator, chemical-resistant gloves, organic vapour cartridges, butyl rubber gloves, face shields

lay-up techniques include: rolling, brushing, spraying

malformations include: air bubbles, delamination, impurities

 

Knowledge

 

Learning Outcomes

Learning Objectives

C-12.03.01L

demonstrate knowledge of the procedures used to lay up fiberglass and the associated tools and materials

describe procedures involved in fiberglass lay-up

   

identify types and grades of fiberglass materials

   

describe mixing and curing procedures

   

identify accelerators, retarders and promoters

   

identify certification requirements

   

describe the handling and storage process for the chemicals required to assemble fiberglass pipe and vessels

   

describe the process of drilling

   

describe the process of bolting

   

describe process for handling and mixing resins, catalysts and associated chemicals

   

describe safety considerations for handling and mixing resins, catalysts and associated chemicals

   

describe the process of cutting

   

describe the process of grinding

   

describe the process of laminating glass

   

identify and describe the resins and fiberglass materials required for lay-up and repairs

   

describe the uses of fiberglass in tanks, silos, stacks, scrubbers, breeching and piping

   

define the purpose of fiberglass materials

   

describe the process to facilitate repairs on round and flat surfaces

   

list and describe the tools and materials used for preparation and assembly

   

list and describe measuring equipment

   

list and describe lay-up equipment

C-12.03.02L

demonstrate knowledge of drawing interpretation

interpret specification drawings

Range of Variables

procedures involved in fiberglass lay-up include: tight fit-up, sanding saturate mat, stagger cut lengths, mix resin and catalyst, apply surface veil, remove air, sand entire weld, apply resin and air dry mix application method, hand lay-up, spray lay-up, cutting, fitting, surface preparation, hot patches

types and grades of fiberglass materials include: cloth, resins, fillers

fiberglass materials include: polyester resins, catalysts, promoters, surfacing veil, mat, woven roving, acetone, methylene chloride, air dry additive, filler

measuring equipment includes: paper or plastic mixing cups, mixing sticks, plastic bucket graduated for measuring resin, glass for measuring promoters and catalysts, mixing pails

lay-up equipment includes: surfacing veil, matting, woven roving

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