Dow Theory_Sameer_Tushar_Sanjiv (1)
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Conestoga College *
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Course
8225
Subject
Industrial Engineering
Date
Dec 6, 2023
Type
xlsx
Pages
21
Uploaded by ChefCrown15323
576153f67bc572d0687f52fdbcee58f13a5598eb.xlsx
11/15/2023
22:00:47
Versions
(clock)
(in hours)
Version
Date
Type
Description
Time
Duration
Update By
Contributors
3
April 12, 2023
Review meeting
9:00 AM
1.5 hr
Sameer gharat
4
April 7, 2023
Zoom meeting
3:00 PM
1.4hr
Tushar
Patel
Total Investigation Hours
2.90
Review the final group project sheet in the file attached.
Then, with Prof.'s guidance, revise the precise
specification.
Tushar.s, sanjiv tivari ,
sameer gharat,
Professor
underlying issues, solutions, and standards of conduct
Tushar.s, sanjiv tivari ,
sameer gharat
The "versions" feature is useful for tracking the progress of ongoing investigations that involve
multiple iterations. It allows you to keep a record of the different versions, as well as the type
and level of involvement of each participant. While it is not required, you may also choose to
include information about the timing and duration of each iteration.
Example:
(clock)
(in hours)
VersionDate
Interaction TypeDescription
Time
DurationUpdate By
Contributors
1
JApril
5, 2023
Conference Call first information gathered
1.00
tushar.s
Tushar.s, sanjiv tivari , sameer gharat
2
JApril
7, 2023
Meeting (in person)
one-on-one with operator, initial map construction, revised timetable
1:00 PM
0.40
sanjiv
Sameer Gharat.
3
JApril
8, 2023
Remote
Map Cleanup
0.80
sameer
4
JApril
13, 2023
Meeting (in person)
Discussion with Operations: Added and extended Cause Map
Action Points
7:00 AM
1.50
sanjivh
Operations Team -
sameer, tushar,
tivari
Problem Notification
1. Consult the plant manager of a different production site (Y is a raw material provider).
Has the manufacturing or availability of chemicals changed recently?
delivered filtered goods?
If not, why didn't the process involve filtration?
2. Speaking with the plant manager at the location of the ABC product
How frequently did they maintain the machinery used in production?
Was there anything that required to be taken into account in terms of laws, rules, or regulations?
ABC Goods: Does climate change have an impact on it?
Has the required filtration been performed on the X raw material?
Did they switch to X as the raw material provider?
Does the reactor have a leak that permits materials to enter it?
Does the reactor get enough gaseous ammonia to produce the best?
3. Ask lower-level personnel (Operators) questions.
Did they notice any recent adjustments to the manufacturing process or raw material feedrate?
Were they functioning according to protocol?
4. Additional observation
Inspections aid in identifying problems at work and recording them for future attention.
Analyse any potential effects on the environment and the economy caused by this issue.
Examine the area surrounding the drums where the material is deposited.
Analyse the drums to find out what toxins are inside of them.
5. Check further records and information to pinpoint the issue .
Compare and classify the problem by review organisational assets and check history for other plant issues in the past.
Who are the people who had been affected by this Product issue?
Who are stakeholders?
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Process or Function Name: Production of Dow Corning’s Product ABC
SIPOC Diagram
Suppliers
Inputs
Processes
Operating a pump.
Pressurised material X
Filtration
Another location for manufacturing.
Prefiltered material Y
Pump the material into
Operating a reactor.
Processed material XY
external vendor.
Material X
Pump the material in
Another location for manufacturing.
Prefiltered material Y
Pump the material into
Operating a pump.
Material XY
Reactor
Condenser operator
Waste material from reactor
Condensing
Bulk Storage
Gaseous Ammonia
Pressurize the rea
Scope:
Make recommendations for factors that the study team should consider
while examining the primary processes' suppliers, inputs, improvement areas,
outputs, and clients who will be getting those outputs.
Who supplies the process
inputs?
What inputs are
required?
What are the m
steps in the proc
Pumping to fill in final
into drums
Date April 5th 2023
m
Outputs
Customers
Filtered Material X
Reactor technician
o reactor
Material Y into the reactor
Reactor technician
Final product
Internal customer
nto filter
Material X into the filter
Pump Operator
o reactor
Material Y into the reactor
Reactor technician
Controlled material XY
Condenser operator
Liquid waste
Receiver
actor
Pressure created in reactor
Reactor technician
Notes:
Based on information from the process map
and the case study, this SIPOC visual was created.
The clients column has a specific employee's
designation assigned to it.
major
cess?
What are the process
outputs?
Who receives the
outputs?
product
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Problem Analysis (Is - Is not)
Specify the problem:
IS
IS NOT
Distinction
Causes
WHAT
WHERE
WHEN
SCOPE
Problem Identification
:
Black specks are an issue that Dow Corning Corporation is having when producing ABC. What is
the root cause of this issue, and why?
The drums of product ABC included black
particles.
On the other goods created from the same two
raw materials, X and Y, no black specks were
discovered.
For each product, there is a distinct
feed ratio of the raw material.
The flow rate changed, and the
operator lacked training.
Waste is unable to condense in
the condenser.
discovered black specks at the bottom of an
ABC product drum.
Except for the bottom section, the drum was
completely free of any black flecks.
Product ABC is a fluid that is very
viscous and challenging to filter.
Product ABC is a fluid that is
difficult to filter due to its high
viscosity.
When the internal customer used it 3.5 months
later, the issue was discovered.
After three months of production, the internal
client used it before the issue was discovered.
Recent developments in the
maintenance and time difference
fields
pollutants in the final product
material within three months.
and the maintenance of plant
machinery.
To locate and eliminate the difficult-to-filter
black particles that were discovered during the
manufacture of Product ABC.
to find and get rid of the problematic black
particle
Product ABC, which had been
produced three months earlier, had a
problem.
Where the material is poured
into the barrels has an impact
on the environment in the
surrounding places.
Timeline
Date
Time
Description
January 20, 2023
3:30 PM
February 22, 2023
6:00 PM
March 28, 2023
11:30 AM
April 1, 2023
3:00 PM
April 3, 2023
1:00 PM
April 6, 2023
10:00 AM
checked to see if the drums were unclean or not.
April 8, 2023
2:00 PM
April 8, 2023
9:00 AM
A group was established to address issues.
Problem with leaky valves and broken pumps
Broken Teflon was the problem, and strong graphite
was used in its place.
ABC product's production procedure
discovered black specks in the drum's bottom.
Another batch of ABThe production of ABC
continued.
C was produced
has been verified that product ABC contains black
flecks of contamination.
Used this tab to capture details of the sequence of events leading up to the problem in chronological order.
Source, Reference
Manufacturing unit
Manufacturing unit
Production unit
Internal customer
Production unit
Production unit
Production unit
Plant manager
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Problem Containment
The containment area should cover:
1. Production (In-transit)
Additional visual control.
This task is carried out during the manufacturing phase, when problems are more likely to arise. In order to accomplish the following objectives of the business, visual control refers to
the techniques, tools, or procedures used to manage or control activities (processes):
>
Products made by ABC must stop being produced right away.
> Put every batch of ABC products that is impacted into quarantine and mark it as tainted.
> Customers need to be informed and told to quarantine any ABC products they may have obtained.To pinpoint the root of the contamination,
thoroughly examine the production process.
> Check for any indications of damage, wear and tear, or malfunction on any machinery and components involved in the production process, such
as valves,
pumps, reactors, and condensers.
> Gather samples of the ABC products, the X and Y raw ingredients, and the products for laboratory testing.
letting the operators know about the issue (Quality alert).
The operators are informed that the customer-supplied item has flaws and is scuffed.
In order to assure thorough product quality checks before finishing the project from that day forward, they were more careful, which allowed the
m to do the following: - Provide greater monitoring.
1. Provide more supervision.
> They will ensure that the necessary quality standards are followed.
>- Operators monitor the equipment they employ in the procedure.
2. Customer (Keysight).
Customer notification of the issue - With the submission of the 8D, the investigation process will become more open by including all the details
regarding the flaws and the efforts we took to fix them.
3. Supplier Containment
• Isolate/segregate the nonconforming product.
• Quarantine the complete supplier value stream – WIP, stock, in transit, on delivered product.
• Clearly identify the suspect material or parts.
1. Make contact with the supplier(s) to alert them to the contamination problem and suggest that they take prompt action to
resolve it.
2. Ask the supplier(s) to look into their own manufacturing procedure to locate any potential sources of contamination and then
submit a thorough report of their findings.
3. Take appropriate action after assessing the supplier(s)' response, which may include: a. Rejecting further shipments from the
supplier(s) until the problem is fixed.b.
4. Asking the supplier(s) for extra quality control methods or documents.c. Taking legal action, if required, to recoup expenses
or losses brought on by the pollution.
4. 100% screening is done for below area:
Finished good inventory (FGI), warehouse inventory, Keysight inventory (includes manufacturing), incoming material (receiving areas),
Results
:
From of a total of xx PCs, xx PCs are determined to have similar reject.
There are xx% rejections. confirmed that date number x is the impacted one.
Material that is rejected is returned for further Failure Analysis.
Details required:a) Screening type used in the region that was chosen above b) Results: Reject amount and rate c) the identity of the person in
charged) the day that the action was taken.
5. Shipping areas
Inspection before delivery: The orders placed by an internal client will be examined, and shipping will not begin until the
problem's root cause has been found.
6. Lessons learned database:
An organization strives to continuously improve its operations and processes by implementing a system that focuses on
preventing problems, enhancing performance, and reducing costs.
By doing so, the organization can learn from past mistakes and use that knowledge to better its future performance.
Work Process
Process step
Decision point
Notes
Opportunity, gap, potential failur Text label
Notes:
#1
The individual failure points can be found by recording the
exact actions taken during the labour process.
You may
record the process from the "people closest to the work"
by using the shapes to the right.
Determine the probable
points of failure.
YES
Decision
NO
Label (no border)
Label (border)
From a third party
source, raw material X
is delivered in bulk
containers.
To eliminate
pollutants, it is then
filtered as it is
injected into the
process.
Drums of pre-filtered
raw material Y are
delivered from
another production
facility.
The reactor is
subsequently given a
direct injection of raw
material Y.
To pressurise the
reactor, gaseous
ammonia is supplied
from a bulk storage
tank.
Following that, the
products are sent to the
receiver after being
condensed in the
condenser.
The receiver then
gathers the liquid so
that it may securely
dispose of it.
After that, the
finished product is
poured into drums
for use in subsequent
steps.
1
2
3
Process of Material X
and Y Reaction in
Reactor
https://www.vertex42.com/ExcelTemplates/fishbone-diagram.html
Fishbone Diagram © 2009 Vertex42 LLC
Cause and Effect Diagram
Black specks was found in the bottom of a drum of product ABC.
Date:
Cause
Effect
Machine
Method
Manpower
improperly filtered raw materials.
False production methods.
Lack of training for the employees.
Failure to function Pumps.
Poor Product Processing
Reactor upkeep.
gas pressure of ammonia.
Operators disregard the instructions
units for pumps.
various raw material input rates.
brand-new personnel
Problem with the rectifier & receiver.
Repairs and upkeep of plant machinery.
storage space
measuring error in pressure.
Humidity
Correction Errors.
Gaseous ammonia.
Temperature
Wrong timing prediction.
Unsuitable Production Environment
Flowrate problem.
Materials
Environment
Measurement
materials.
PROBLEM:A drum of
product ABC was found
to have black flecks at the
bottom of it.
X and Y specifications for the raw materials.
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AND
OR
AND/OR
Possible Solution:
Evidence:
recognisable in
the item ABC
Carbon-based
particles that
resemble wood
Gasket has a
crack.
top-level graphite
gasket that is
flaking
Cause Map Version
Black specks
DRAFT
Black specks found in the product ABC
Verify the presence of
pollutants in the drums.
well-controlled
chemical reaction.
Schedule maintenance for the
gasket and accessories and repair
the gasket with the proper fixings.
Case study
question's answers
Dow Corning Case
Study
Case study question's
answers
Dow Corning Case
Study
When processing,
check the raw
materials and finished
goods.
mixing of carbon
particles during a
reaction
well contained
reaction process.
Case study
question's answers
Solutions
Possible Solutions for Consideration
Ref.
Possible Solution
Root Cause Controlled
1
In the ABC product, it is mentioned.
2
3
damaged gasket.
4
top gasket made of flaking graphite.
5
6
Carbon atoms leaving the reactor.
7
Upkeep of the reactor.
the reactor's malfunction.
Inspect both the raw materials and the
completed product throughout the
production process.
Look over any pollutants in the drums.
Particles that are carbon-based and
resemble wood.
replacing the gasket with a more
resilient graphite.
Fix the gasket with the required
fittings, and plan maintenance for the
gasket and its accessories.
procedure with a completely closed
boundary.
During the reaction process, carbon-
based components were combined.
when the finished product is removed
from the reactor, adding a sensor.
1. Co
effor
2. Ev
an en
1. Specific causes are controlled by potential remedies presented on the Cause
Map.
2. Prevention efforts need alterations to your work process.
Describe the process
that the suggested solution will alter or have an impact on.
Type of Root Cause
Materials
Materials
Quality Control.
Machine
Reactor method.
Machine
Reactor method.
Method
Reactor method.
Method
Check for purification.
Machine
Work Process
(process to be improved)
Storage and provision of raw
materials.
Process of production runs
smoothly.
onsider your options carefully and choose the best ones to lower risk to a manageable level.
You may compare
rt put in vs. results obtained using the solutions matrix.
very solution chosen for implementation should specify the precise steps to be followed, assign a recipient and
nd date, and may be accessed by this link to the Matrix Tab.
Solutions Matrix
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Solutions Matrix
A comprehensive a benefit-cost analysis technique that may be used to
analyse possible remedies is the alternatives matrix.
Copy your potential
solutions from the Cause Map and arrange them on the structure in
relation to one another to utilise the tool.
Symbols or digits might be used
to symbolise your many possibilities if you are contemplating a big number
of answers.
High
Low
Payback
Benefit
Effort
Cost
Medium
High
Medium
A
B
C
E
F
G
1
2
3
4
5
6
7
Ref.
Possible Solution
1
Inspect both the beginning components and the completed produ
2
Look over any pollutants in the drums.
3
replacing the gasket with a more resilient graphite.
4
Fix the gasket with the required fittings, and plan maintenance for
5
Process of complete closed-loop reaction
6
when the finished product is removed out of the reactor, inserting
7
Upkeep of the reactor.
h
C
D
G
H
1
2
3
4
5
6
7
8
Use letters or
numbers to rank
the solutions.
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uct throughout the production process.
r the gasket and its accessories.
a sensor.
Control and Standardize
Force Field Analysis
Write the decision or goal in the below field:
16
10
Appropriate fixtures
3
3
Coordination across departments could be challenging.
Make it easy to follow Maintenance process
2
1
Proceed maintenance with optimal recourses
1
2
Selecting a standard technique is challenging.
On time completion of Maintenance
4
4
Probably have trouble repairing gasket.
Cost saving initiative
3
Enhance standard procedure within a organizati
3
Fix the gasket with the necessary fixtures and to schedule a
gasket and other accessory maintenance.
Helping Forces
(Pros)
Hindering forces
(Cons)
Increased maintenance costs for accessories and
components.
Setting performance standards is one of the first things managers must do.
These performance requirements should take the shape of objectives, such as maintaining the quality of the finished product and
the raw materials throughout time.
The requirements must be specific, quantifiable, and reachable.
2. Assessing actual performance:
Without measurement, it is impossible to determine if requirements have been reached.
3.
Evaluating performance against standards or objectives:
Accept the product or reject it.
4. Investigating deviations
: Managers need to find out why standards weren't reached. In this phase, it is also decided whether
further regulation or a revision in the standard are required.
5
.
Taking corrective action:
As
Managers can provide remedies for problems with reaching standards after identifying the causes of
black specks and changing procedures or behaviour.
The top graphite gasket's flaking has been shown to be the primary source of the issue.
Fixing the gasket with the required fasteners and scheduling a gasket and accessory maintenance are two potential alternatives to
take into account in order to lessen the likelihood of this issue occurring.
We formulate recommendations for changing the standardisation and control system in accordance with the debate. The need for
standardised methods and procedures for the manufacturing was decided.
Having a regular maintenance for the reactor and adhering to a set procedure standard are ideas for standardised actions.
Additionally, the maintenance department needs to follow several industry-standard maintenance practises. This analysis of a force
field.
According to our study, the choice field for these corrective measures has a large number of Helping Forces (19) and a small number
of Hindering Forces (11).
Therefore, a greater number of helpful forces support our choice, which provides a practical fix for our problem of black specks in
product ABC and ensures that there won't be a similar issue in the future.
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